:root {
  /* Primitive Color Tokens */
  --color-white: rgba(255, 255, 255, 1);
  --color-black: rgba(0, 0, 0, 1);
  --color-cream-50: rgba(252, 252, 249, 1);
  --color-cream-100: rgba(255, 255, 253, 1);
  --color-gray-200: rgba(245, 245, 245, 1);
  --color-gray-300: rgba(167, 169, 169, 1);
  --color-gray-400: rgba(119, 124, 124, 1);
  --color-slate-500: rgba(98, 108, 113, 1);
  --color-brown-600: rgba(94, 82, 64, 1);
  --color-charcoal-700: rgba(31, 33, 33, 1);
  --color-charcoal-800: rgba(38, 40, 40, 1);
  --color-slate-900: rgba(19, 52, 59, 1);
  --color-teal-300: rgba(50, 184, 198, 1);
  --color-teal-400: rgba(45, 166, 178, 1);
  --color-teal-500: rgba(33, 128, 141, 1);
  --color-teal-600: rgba(29, 116, 128, 1);
  --color-teal-700: rgba(26, 104, 115, 1);
  --color-teal-800: rgba(41, 150, 161, 1);
  --color-red-400: rgba(255, 84, 89, 1);
  --color-red-500: rgba(192, 21, 47, 1);
  --color-orange-400: rgba(230, 129, 97, 1);
  --color-orange-500: rgba(168, 75, 47, 1);

  /* RGB versions for opacity control */
  --color-brown-600-rgb: 94, 82, 64;
  --color-teal-500-rgb: 33, 128, 141;
  --color-slate-900-rgb: 19, 52, 59;
  --color-slate-500-rgb: 98, 108, 113;
  --color-red-500-rgb: 192, 21, 47;
  --color-red-400-rgb: 255, 84, 89;
  --color-orange-500-rgb: 168, 75, 47;
  --color-orange-400-rgb: 230, 129, 97;

  /* Background color tokens (Light Mode) */
  --color-bg-1: rgba(59, 130, 246, 0.08); /* Light blue */
  --color-bg-2: rgba(245, 158, 11, 0.08); /* Light yellow */
  --color-bg-3: rgba(34, 197, 94, 0.08); /* Light green */
  --color-bg-4: rgba(239, 68, 68, 0.08); /* Light red */
  --color-bg-5: rgba(147, 51, 234, 0.08); /* Light purple */
  --color-bg-6: rgba(249, 115, 22, 0.08); /* Light orange */
  --color-bg-7: rgba(236, 72, 153, 0.08); /* Light pink */
  --color-bg-8: rgba(6, 182, 212, 0.08); /* Light cyan */

  /* Semantic Color Tokens (Light Mode) */
  --color-background: var(--color-cream-50);
  --color-surface: var(--color-cream-100);
  --color-text: var(--color-slate-900);
  --color-text-secondary: var(--color-slate-500);
  --color-primary: var(--color-teal-500);
  --color-primary-hover: var(--color-teal-600);
  --color-primary-active: var(--color-teal-700);
  --color-secondary: rgba(var(--color-brown-600-rgb), 0.12);
  --color-secondary-hover: rgba(var(--color-brown-600-rgb), 0.2);
  --color-secondary-active: rgba(var(--color-brown-600-rgb), 0.25);
  --color-border: rgba(var(--color-brown-600-rgb), 0.2);
  --color-btn-primary-text: var(--color-cream-50);
  --color-card-border: rgba(var(--color-brown-600-rgb), 0.12);
  --color-card-border-inner: rgba(var(--color-brown-600-rgb), 0.12);
  --color-error: var(--color-red-500);
  --color-success: var(--color-teal-500);
  --color-warning: var(--color-orange-500);
  --color-info: var(--color-slate-500);
  --color-focus-ring: rgba(var(--color-teal-500-rgb), 0.4);
  --color-select-caret: rgba(var(--color-slate-900-rgb), 0.8);

  /* Common style patterns */
  --focus-ring: 0 0 0 3px var(--color-focus-ring);
  --focus-outline: 2px solid var(--color-primary);
  --status-bg-opacity: 0.15;
  --status-border-opacity: 0.25;
  --select-caret-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23134252' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  --select-caret-dark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f5f5f5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");

  /* RGB versions for opacity control */
  --color-success-rgb: 33, 128, 141;
  --color-error-rgb: 192, 21, 47;
  --color-warning-rgb: 168, 75, 47;
  --color-info-rgb: 98, 108, 113;

  /* Typography */
  --font-family-base: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, "Helvetica Neue", sans-serif;
  --font-family-mono: "Berkeley Mono", ui-monospace, SFMono-Regular, Menlo,
    Monaco, Consolas, monospace;
  --font-size-xs: 11px;
  --font-size-sm: 12px;
  --font-size-base: 14px;
  --font-size-md: 14px;
  --font-size-lg: 16px;
  --font-size-xl: 18px;
  --font-size-2xl: 20px;
  --font-size-3xl: 24px;
  --font-size-4xl: 30px;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 550;
  --font-weight-bold: 600;
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --letter-spacing-tight: -0.01em;

  /* Spacing */
  --space-0: 0;
  --space-1: 1px;
  --space-2: 2px;
  --space-4: 4px;
  --space-6: 6px;
  --space-8: 8px;
  --space-10: 10px;
  --space-12: 12px;
  --space-16: 16px;
  --space-20: 20px;
  --space-24: 24px;
  --space-32: 32px;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-base: 8px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.04),
    0 2px 4px -1px rgba(0, 0, 0, 0.02);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.04),
    0 4px 6px -2px rgba(0, 0, 0, 0.02);
  --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.15),
    inset 0 -1px 0 rgba(0, 0, 0, 0.03);

  /* Animation */
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --ease-standard: cubic-bezier(0.16, 1, 0.3, 1);

  /* Layout */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
}

/* Dark mode colors */
@media (prefers-color-scheme: dark) {
  :root {
    /* RGB versions for opacity control (Dark Mode) */
    --color-gray-400-rgb: 119, 124, 124;
    --color-teal-300-rgb: 50, 184, 198;
    --color-gray-300-rgb: 167, 169, 169;
    --color-gray-200-rgb: 245, 245, 245;

    /* Background color tokens (Dark Mode) */
    --color-bg-1: rgba(29, 78, 216, 0.15); /* Dark blue */
    --color-bg-2: rgba(180, 83, 9, 0.15); /* Dark yellow */
    --color-bg-3: rgba(21, 128, 61, 0.15); /* Dark green */
    --color-bg-4: rgba(185, 28, 28, 0.15); /* Dark red */
    --color-bg-5: rgba(107, 33, 168, 0.15); /* Dark purple */
    --color-bg-6: rgba(194, 65, 12, 0.15); /* Dark orange */
    --color-bg-7: rgba(190, 24, 93, 0.15); /* Dark pink */
    --color-bg-8: rgba(8, 145, 178, 0.15); /* Dark cyan */
    
    /* Semantic Color Tokens (Dark Mode) */
    --color-background: var(--color-charcoal-700);
    --color-surface: var(--color-charcoal-800);
    --color-text: var(--color-gray-200);
    --color-text-secondary: rgba(var(--color-gray-300-rgb), 0.7);
    --color-primary: var(--color-teal-300);
    --color-primary-hover: var(--color-teal-400);
    --color-primary-active: var(--color-teal-800);
    --color-secondary: rgba(var(--color-gray-400-rgb), 0.15);
    --color-secondary-hover: rgba(var(--color-gray-400-rgb), 0.25);
    --color-secondary-active: rgba(var(--color-gray-400-rgb), 0.3);
    --color-border: rgba(var(--color-gray-400-rgb), 0.3);
    --color-error: var(--color-red-400);
    --color-success: var(--color-teal-300);
    --color-warning: var(--color-orange-400);
    --color-info: var(--color-gray-300);
    --color-focus-ring: rgba(var(--color-teal-300-rgb), 0.4);
    --color-btn-primary-text: var(--color-slate-900);
    --color-card-border: rgba(var(--color-gray-400-rgb), 0.2);
    --color-card-border-inner: rgba(var(--color-gray-400-rgb), 0.15);
    --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.1),
      inset 0 -1px 0 rgba(0, 0, 0, 0.15);
    --button-border-secondary: rgba(var(--color-gray-400-rgb), 0.2);
    --color-border-secondary: rgba(var(--color-gray-400-rgb), 0.2);
    --color-select-caret: rgba(var(--color-gray-200-rgb), 0.8);

    /* Common style patterns - updated for dark mode */
    --focus-ring: 0 0 0 3px var(--color-focus-ring);
    --focus-outline: 2px solid var(--color-primary);
    --status-bg-opacity: 0.15;
    --status-border-opacity: 0.25;
    --select-caret-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23134252' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    --select-caret-dark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f5f5f5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");

    /* RGB versions for dark mode */
    --color-success-rgb: var(--color-teal-300-rgb);
    --color-error-rgb: var(--color-red-400-rgb);
    --color-warning-rgb: var(--color-orange-400-rgb);
    --color-info-rgb: var(--color-gray-300-rgb);
  }
}

/* Data attribute for manual theme switching */
[data-color-scheme="dark"] {
  /* RGB versions for opacity control (dark mode) */
  --color-gray-400-rgb: 119, 124, 124;
  --color-teal-300-rgb: 50, 184, 198;
  --color-gray-300-rgb: 167, 169, 169;
  --color-gray-200-rgb: 245, 245, 245;

  /* Colorful background palette - Dark Mode */
  --color-bg-1: rgba(29, 78, 216, 0.15); /* Dark blue */
  --color-bg-2: rgba(180, 83, 9, 0.15); /* Dark yellow */
  --color-bg-3: rgba(21, 128, 61, 0.15); /* Dark green */
  --color-bg-4: rgba(185, 28, 28, 0.15); /* Dark red */
  --color-bg-5: rgba(107, 33, 168, 0.15); /* Dark purple */
  --color-bg-6: rgba(194, 65, 12, 0.15); /* Dark orange */
  --color-bg-7: rgba(190, 24, 93, 0.15); /* Dark pink */
  --color-bg-8: rgba(8, 145, 178, 0.15); /* Dark cyan */
  
  /* Semantic Color Tokens (Dark Mode) */
  --color-background: var(--color-charcoal-700);
  --color-surface: var(--color-charcoal-800);
  --color-text: var(--color-gray-200);
  --color-text-secondary: rgba(var(--color-gray-300-rgb), 0.7);
  --color-primary: var(--color-teal-300);
  --color-primary-hover: var(--color-teal-400);
  --color-primary-active: var(--color-teal-800);
  --color-secondary: rgba(var(--color-gray-400-rgb), 0.15);
  --color-secondary-hover: rgba(var(--color-gray-400-rgb), 0.25);
  --color-secondary-active: rgba(var(--color-gray-400-rgb), 0.3);
  --color-border: rgba(var(--color-gray-400-rgb), 0.3);
  --color-error: var(--color-red-400);
  --color-success: var(--color-teal-300);
  --color-warning: var(--color-orange-400);
  --color-info: var(--color-gray-300);
  --color-focus-ring: rgba(var(--color-teal-300-rgb), 0.4);
  --color-btn-primary-text: var(--color-slate-900);
  --color-card-border: rgba(var(--color-gray-400-rgb), 0.15);
  --color-card-border-inner: rgba(var(--color-gray-400-rgb), 0.15);
  --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.1),
    inset 0 -1px 0 rgba(0, 0, 0, 0.15);
  --color-border-secondary: rgba(var(--color-gray-400-rgb), 0.2);
  --color-select-caret: rgba(var(--color-gray-200-rgb), 0.8);

  /* Common style patterns - updated for dark mode */
  --focus-ring: 0 0 0 3px var(--color-focus-ring);
  --focus-outline: 2px solid var(--color-primary);
  --status-bg-opacity: 0.15;
  --status-border-opacity: 0.25;
  --select-caret-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23134252' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  --select-caret-dark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f5f5f5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");

  /* RGB versions for dark mode */
  --color-success-rgb: var(--color-teal-300-rgb);
  --color-error-rgb: var(--color-red-400-rgb);
  --color-warning-rgb: var(--color-orange-400-rgb);
  --color-info-rgb: var(--color-gray-300-rgb);
}

[data-color-scheme="light"] {
  /* RGB versions for opacity control (light mode) */
  --color-brown-600-rgb: 94, 82, 64;
  --color-teal-500-rgb: 33, 128, 141;
  --color-slate-900-rgb: 19, 52, 59;
  
  /* Semantic Color Tokens (Light Mode) */
  --color-background: var(--color-cream-50);
  --color-surface: var(--color-cream-100);
  --color-text: var(--color-slate-900);
  --color-text-secondary: var(--color-slate-500);
  --color-primary: var(--color-teal-500);
  --color-primary-hover: var(--color-teal-600);
  --color-primary-active: var(--color-teal-700);
  --color-secondary: rgba(var(--color-brown-600-rgb), 0.12);
  --color-secondary-hover: rgba(var(--color-brown-600-rgb), 0.2);
  --color-secondary-active: rgba(var(--color-brown-600-rgb), 0.25);
  --color-border: rgba(var(--color-brown-600-rgb), 0.2);
  --color-btn-primary-text: var(--color-cream-50);
  --color-card-border: rgba(var(--color-brown-600-rgb), 0.12);
  --color-card-border-inner: rgba(var(--color-brown-600-rgb), 0.12);
  --color-error: var(--color-red-500);
  --color-success: var(--color-teal-500);
  --color-warning: var(--color-orange-500);
  --color-info: var(--color-slate-500);
  --color-focus-ring: rgba(var(--color-teal-500-rgb), 0.4);

  /* RGB versions for light mode */
  --color-success-rgb: var(--color-teal-500-rgb);
  --color-error-rgb: var(--color-red-500-rgb);
  --color-warning-rgb: var(--color-orange-500-rgb);
  --color-info-rgb: var(--color-slate-500-rgb);
}

/* Base styles */
html {
  font-size: var(--font-size-base);
  font-family: var(--font-family-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
}

*,
*::before,
*::after {
  box-sizing: inherit;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  color: var(--color-text);
  letter-spacing: var(--letter-spacing-tight);
}

h1 {
  font-size: var(--font-size-4xl);
}
h2 {
  font-size: var(--font-size-3xl);
}
h3 {
  font-size: var(--font-size-2xl);
}
h4 {
  font-size: var(--font-size-xl);
}
h5 {
  font-size: var(--font-size-lg);
}
h6 {
  font-size: var(--font-size-md);
}

p {
  margin: 0 0 var(--space-16) 0;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-standard);
}

a:hover {
  color: var(--color-primary-hover);
}

code,
pre {
  font-family: var(--font-family-mono);
  font-size: calc(var(--font-size-base) * 0.95);
  background-color: var(--color-secondary);
  border-radius: var(--radius-sm);
}

code {
  padding: var(--space-1) var(--space-4);
}

pre {
  padding: var(--space-16);
  margin: var(--space-16) 0;
  overflow: auto;
  border: 1px solid var(--color-border);
}

pre code {
  background: none;
  padding: 0;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8) var(--space-16);
  border-radius: var(--radius-base);
  font-size: var(--font-size-base);
  font-weight: 500;
  line-height: 1.5;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
  border: none;
  text-decoration: none;
  position: relative;
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
}

.btn--primary:hover {
  background: var(--color-primary-hover);
}

.btn--primary:active {
  background: var(--color-primary-active);
}

.btn--secondary {
  background: var(--color-secondary);
  color: var(--color-text);
}

.btn--secondary:hover {
  background: var(--color-secondary-hover);
}

.btn--secondary:active {
  background: var(--color-secondary-active);
}

.btn--outline {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.btn--outline:hover {
  background: var(--color-secondary);
}

.btn--sm {
  padding: var(--space-4) var(--space-12);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
}

.btn--lg {
  padding: var(--space-10) var(--space-20);
  font-size: var(--font-size-lg);
  border-radius: var(--radius-md);
}

.btn--full-width {
  width: 100%;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Form elements */
.form-control {
  display: block;
  width: 100%;
  padding: var(--space-8) var(--space-12);
  font-size: var(--font-size-md);
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  transition: border-color var(--duration-fast) var(--ease-standard),
    box-shadow var(--duration-fast) var(--ease-standard);
}

textarea.form-control {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
}

select.form-control {
  padding: var(--space-8) var(--space-12);
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: var(--select-caret-light);
  background-repeat: no-repeat;
  background-position: right var(--space-12) center;
  background-size: 16px;
  padding-right: var(--space-32);
}

/* Add a dark mode specific caret */
@media (prefers-color-scheme: dark) {
  select.form-control {
    background-image: var(--select-caret-dark);
  }
}

/* Also handle data-color-scheme */
[data-color-scheme="dark"] select.form-control {
  background-image: var(--select-caret-dark);
}

[data-color-scheme="light"] select.form-control {
  background-image: var(--select-caret-light);
}

.form-control:focus {
  border-color: var(--color-primary);
  outline: var(--focus-outline);
}

.form-label {
  display: block;
  margin-bottom: var(--space-8);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
}

.form-group {
  margin-bottom: var(--space-16);
}

/* Card component */
.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--duration-normal) var(--ease-standard);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card__body {
  padding: var(--space-16);
}

.card__header,
.card__footer {
  padding: var(--space-16);
  border-bottom: 1px solid var(--color-card-border-inner);
}

/* Status indicators - simplified with CSS variables */
.status {
  display: inline-flex;
  align-items: center;
  padding: var(--space-6) var(--space-12);
  border-radius: var(--radius-full);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
}

.status--success {
  background-color: rgba(
    var(--color-success-rgb, 33, 128, 141),
    var(--status-bg-opacity)
  );
  color: var(--color-success);
  border: 1px solid
    rgba(var(--color-success-rgb, 33, 128, 141), var(--status-border-opacity));
}

.status--error {
  background-color: rgba(
    var(--color-error-rgb, 192, 21, 47),
    var(--status-bg-opacity)
  );
  color: var(--color-error);
  border: 1px solid
    rgba(var(--color-error-rgb, 192, 21, 47), var(--status-border-opacity));
}

.status--warning {
  background-color: rgba(
    var(--color-warning-rgb, 168, 75, 47),
    var(--status-bg-opacity)
  );
  color: var(--color-warning);
  border: 1px solid
    rgba(var(--color-warning-rgb, 168, 75, 47), var(--status-border-opacity));
}

.status--info {
  background-color: rgba(
    var(--color-info-rgb, 98, 108, 113),
    var(--status-bg-opacity)
  );
  color: var(--color-info);
  border: 1px solid
    rgba(var(--color-info-rgb, 98, 108, 113), var(--status-border-opacity));
}

/* Container layout */
.container {
  width: 100%;
  margin-right: auto;
  margin-left: auto;
  padding-right: var(--space-16);
  padding-left: var(--space-16);
}

@media (min-width: 640px) {
  .container {
    max-width: var(--container-sm);
  }
}
@media (min-width: 768px) {
  .container {
    max-width: var(--container-md);
  }
}
@media (min-width: 1024px) {
  .container {
    max-width: var(--container-lg);
  }
}
@media (min-width: 1280px) {
  .container {
    max-width: var(--container-xl);
  }
}

/* Utility classes */
.flex {
  display: flex;
}
.flex-col {
  flex-direction: column;
}
.items-center {
  align-items: center;
}
.justify-center {
  justify-content: center;
}
.justify-between {
  justify-content: space-between;
}
.gap-4 {
  gap: var(--space-4);
}
.gap-8 {
  gap: var(--space-8);
}
.gap-16 {
  gap: var(--space-16);
}

.m-0 {
  margin: 0;
}
.mt-8 {
  margin-top: var(--space-8);
}
.mb-8 {
  margin-bottom: var(--space-8);
}
.mx-8 {
  margin-left: var(--space-8);
  margin-right: var(--space-8);
}
.my-8 {
  margin-top: var(--space-8);
  margin-bottom: var(--space-8);
}

.p-0 {
  padding: 0;
}
.py-8 {
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
}
.px-8 {
  padding-left: var(--space-8);
  padding-right: var(--space-8);
}
.py-16 {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}
.px-16 {
  padding-left: var(--space-16);
  padding-right: var(--space-16);
}

.block {
  display: block;
}
.hidden {
  display: none;
}

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

:focus-visible {
  outline: var(--focus-outline);
  outline-offset: 2px;
}

/* Dark mode specifics */
[data-color-scheme="dark"] .btn--outline {
  border: 1px solid var(--color-border-secondary);
}


/* END PERPLEXITY DESIGN SYSTEM */
/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', var(--font-family-base);
    background-color: var(--color-background);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navigation — размер логотипа только здесь (переменные + !important, чтобы не «залипал» старый размер из кэша/атрибутов img) */
:root {
    /* Вровень с навигацией (~0.875rem), без доминирования в шапке */
    --nav-logo-height: clamp(2rem, 3.25vw, 2.625rem);
    --nav-logo-max-width: min(240px, 58vw);
}

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(252, 252, 249, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: transform 0.3s ease;
}

@media (prefers-color-scheme: dark) {
    .nav {
        background: rgba(31, 33, 33, 0.95);
    }
}

/* Ручная тема важнее системной (иначе навбар «ломается» на светлой теме при тёмной ОС) */
[data-color-scheme="light"] .nav {
    background: rgba(252, 252, 249, 0.97) !important;
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.04);
}

[data-color-scheme="dark"] .nav {
    background: rgba(31, 33, 33, 0.96) !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav.hidden {
    transform: translateY(-100%);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0.875rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.nav-logo {
    display: inline-flex;
    align-items: center;
    line-height: 0;
    text-decoration: none;
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.nav-logo__img {
    display: block;
    aspect-ratio: 819 / 158;
    height: var(--nav-logo-height) !important;
    width: auto !important;
    max-width: var(--nav-logo-max-width) !important;
    object-fit: contain;
    object-position: left center;
}

@media (prefers-color-scheme: dark) {
    .nav-logo__img {
        filter: brightness(0) invert(1);
    }
}

[data-color-scheme="light"] .nav-logo__img {
    filter: none;
}

[data-color-scheme="dark"] .nav-logo__img {
    filter: brightness(0) invert(1);
}

.nav-menu {
    display: flex;
    gap: 2rem;
    flex: 1;
    justify-content: flex-end;
}

.nav-menu a {
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.875rem;
    letter-spacing: 1px;
    font-weight: 400;
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a:after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-text);
    transition: width 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-menu a:hover:after {
    width: 100%;
}

.nav-menu a:hover {
    color: var(--color-primary);
}

.nav-logo:hover {
    transform: scale(1.02);
}

/* Burger menu (mobile) */
.nav-burger {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1002;
}

.nav-burger span {
    width: 24px;
    height: 1.5px;
    background: var(--color-text);
    transition: all 0.3s ease;
}

.nav.open .nav-burger span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav.open .nav-burger span:nth-child(2) {
    opacity: 0;
}

.nav.open .nav-burger span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    text-align: center;
    position: relative;
    overflow: hidden;
    padding: 7rem 1rem 5rem;
    box-sizing: border-box;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

/* Фон hero: кровля (img — стабильнее, чем background через custom properties в ::before) */
.hero-bg__image {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
    z-index: 0;
    pointer-events: none;
    background-color: #141616;
    transform: scale(1.03);
}

.hero-bg.hero-bg--roof .hero-overlay {
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.52) 0%, rgba(0, 0, 0, 0.78) 100%);
}

.hero-bg.hero-bg--roof .hero-particles {
    opacity: 0.92;
}

.hero-video,
.hero-photo {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    min-width: 100%;
    min-height: 100%;
    object-fit: cover;
    object-position: center center;
    z-index: 0;
}

.hero-bg:not(.no-video) .hero-video {
    opacity: 1;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0.4) 0%, rgba(0,0,0,0.7) 100%);
    z-index: 1;
}

.hero-particles {
    position: absolute;
    inset: 0;
    z-index: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(33, 128, 141, 0.25) 0%, transparent 45%),
        radial-gradient(circle at 80% 20%, rgba(94, 82, 64, 0.18) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(50, 184, 198, 0.15) 0%, transparent 55%);
    animation: particlesFloat 12s ease-in-out infinite alternate;
}

.hero-bg.no-video .hero-particles {
    animation: particlesFloat 6s ease-in-out infinite alternate;
}

.hero-bg.no-video .hero-gradient {
    animation: gradientShift 4s ease-in-out infinite alternate;
}

@keyframes particlesFloat {
    0% { opacity: 0.85; transform: scale(1); }
    100% { opacity: 1; transform: scale(1.15); }
}

.hero-gradient {
    position: absolute;
    inset: 0;
    z-index: 2;
    background: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(33, 128, 141, 0.12), transparent 50%),
                radial-gradient(ellipse 60% 40% at 80% 80%, rgba(94, 82, 64, 0.06), transparent 40%);
    animation: gradientShift 8s ease-in-out infinite alternate;
}

@keyframes gradientShift {
    0% { opacity: 0.7; }
    100% { opacity: 1; }
}

.hero-mesh {
    position: absolute;
    inset: 0;
    z-index: 3;
    background-image: 
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    animation: meshMove 25s linear infinite;
}

@keyframes meshMove {
    0% { background-position: 0 0; }
    100% { background-position: 60px 60px; }
}

.hero-container {
    max-width: 800px;
    padding: 0 1.5rem;
    position: relative;
    z-index: 5;
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* Контраст текста на тёмном hero (фото/видео) */
.hero .hero-title,
.hero .hero-title-line {
    color: #fafaf8;
}

.hero .hero-subtitle {
    color: rgba(255, 255, 255, 0.78);
}

.hero .hero-scroll span {
    color: rgba(255, 255, 255, 0.65);
}

.page-hero .hero-title,
.page-hero .hero-title em {
    color: #fafaf8;
}

.page-hero .hero-subtitle {
    color: rgba(255, 255, 255, 0.78);
}

/* Вторая строка заголовка — тот же шрифт и начертание, без «курсивного» Playfair */
.hero-title-part2 {
    font-family: 'Playfair Display', serif;
    font-style: normal;
    font-weight: 400;
    display: block;
    margin-top: 0.12em;
}

.page-hero .hero-title em,
.hero .hero-title em {
    font-family: 'Playfair Display', serif;
    font-style: normal;
    font-weight: 400;
}

/* Светлая тема: блок page-hero остаётся тёмным для читаемости */
[data-color-scheme="light"] .page-hero .hero-bg.no-video {
    background-color: #252828;
}

[data-color-scheme="light"] .theme-toggle {
    background: var(--color-surface);
    color: var(--color-text);
    border-color: var(--color-border);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.hero-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(3.5rem, 10vw, 8rem);
    font-weight: 400;
    line-height: 0.9;
    margin-bottom: 1.5rem;
    color: var(--color-text);
    overflow: hidden;
}

.hero-title-line {
    display: inline-block;
    animation: titleReveal 1.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
    transform: translateX(-60px) scale(0.95);
}

.preload .hero-title-line { animation: none; opacity: 0; }
body:not(.preload) .hero-title-line { animation: titleReveal 1.4s cubic-bezier(0.16, 1, 0.3, 1) 0.15s forwards; }

.hero-subtitle {
    opacity: 0;
    transform: translateX(40px) translateY(20px);
    animation: subtitleReveal 1.1s cubic-bezier(0.16, 1, 0.3, 1) 0.4s forwards;
}

.preload .hero-subtitle { animation: none; opacity: 0; transform: translateX(40px) translateY(20px); }
body:not(.preload) .hero-subtitle { animation: subtitleReveal 1.1s cubic-bezier(0.16, 1, 0.3, 1) 0.4s forwards; }

@keyframes titleReveal {
    to { opacity: 1; transform: translateX(0) scale(1); }
}

@keyframes subtitleReveal {
    to { opacity: 1; transform: translateX(0) translateY(0); }
}

.hero-scroll {
    opacity: 0;
    transform: translateY(15px);
    animation: scrollReveal 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.9s forwards;
}

.preload .hero-scroll { animation: none; opacity: 0; }
body:not(.preload) .hero-scroll { animation: scrollReveal 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.9s forwards; }

@keyframes scrollReveal {
    to { opacity: 1; transform: translateY(0); }
}

.hero-title em {
    font-style: italic;
    font-weight: 300;
}

.hero-subtitle {
    font-size: clamp(1rem, 1.8vw, 1.25rem);
    color: var(--color-text-secondary);
    font-weight: 300;
    line-height: 1.7;
    margin-bottom: 0;
    margin-top: 0.5rem;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 0.5rem;
}

.hero-scroll {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    z-index: 5;
    padding-bottom: 0.5rem;
}

/* На низких экранах уменьшаем отступы */
@media (max-height: 650px) {
    .hero { padding: 5rem 1rem 3rem; }
}

@media (max-width: 768px) {
    .hero-subtitle { font-size: 0.95rem; line-height: 1.6; }
}

.hero-scroll span {
    font-size: 0.75rem;
    letter-spacing: 1px;
    color: var(--color-text-secondary);
    text-transform: uppercase;
}

.scroll-indicator {
    width: 1px;
    height: 30px;
    background: linear-gradient(to bottom, var(--color-text-secondary), transparent);
    animation: scrollBounce 2s infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
}

@keyframes scrollBounce {
    0%, 100% { transform: translateY(0); opacity: 0.5; }
    50% { transform: translateY(8px); opacity: 1; }
}

/* Scroll-triggered animations */
.animate-in {
    opacity: 0;
    transform: translateY(60px);
    transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1), transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}

.animate-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.project-card.animate-in.visible {
    transform: translateY(0);
}

/* About Section */
.about {
    padding: 8rem 0;
    background-color: var(--color-surface);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 6rem;
    align-items: start;
}

.about-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(3rem, 5vw, 4rem);
    font-weight: 400;
    line-height: 0.9;
    color: var(--color-text);
}

.about-title em {
    font-style: normal;
    font-weight: 400;
}

.about-text {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    font-weight: 300;
    line-height: 1.8;
}

.about-text p {
    margin-bottom: 2rem;
}

/* Portfolio Section */
.portfolio {
    padding: 8rem 0;
}

.portfolio-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(3rem, 5vw, 4rem);
    font-weight: 400;
    line-height: 0.9;
    margin-bottom: 6rem;
    text-align: center;
    color: var(--color-text);
}

.portfolio-title em {
    font-style: normal;
    font-weight: 400;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 3rem 2.5rem;
    margin-top: 4rem;
    perspective: 1000px;
}

.project-card {
    position: relative;
    overflow: hidden;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    transform-style: preserve-3d;
}

.project-card:hover {
    transform: translateY(-12px) scale(1.02);
}

.project-image {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
    margin-bottom: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 40px -20px rgba(0,0,0,0.2);
    transition: box-shadow 0.5s ease, transform 0.5s ease;
}

.project-card:hover .project-image {
    box-shadow: 0 30px 60px -25px rgba(0,0,0,0.35);
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-card:hover .project-image img {
    transform: scale(1.08);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.4) 50%, transparent 100%);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding-bottom: 2rem;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-card:hover .project-overlay {
    opacity: 1;
    transform: translateY(0);
}

.project-link {
    color: white;
    text-decoration: none;
    font-size: 0.875rem;
    letter-spacing: 3px;
    font-weight: 500;
    padding: 1rem 2.5rem;
    border: 1px solid rgba(255,255,255,0.6);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    transform: translateY(10px);
    background: transparent;
    font-family: inherit;
    cursor: pointer;
}

.project-card[data-project-slug] {
    cursor: pointer;
}

.project-card:hover .project-link {
    transform: translateY(0);
}

.project-link:hover {
    background-color: white !important;
    color: black !important;
    border-color: white !important;
}

.project-info {
    text-align: left;
}

.project-category {
    font-size: 0.75rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--color-text-secondary);
    margin-bottom: 0.5rem;
    display: block;
}

.project-name {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--color-text);
}

.project-description {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    font-weight: 300;
}

/* Contact Section */
.contact {
    padding: 8rem 0;
    background-color: var(--color-surface);
}

.contact-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.contact-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(3rem, 5vw, 4rem);
    font-weight: 400;
    line-height: 0.9;
    margin-bottom: 4rem;
    color: var(--color-text);
}

.contact-title em {
    font-style: normal;
    font-weight: 400;
}

.contact-info {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 4rem;
    margin-bottom: 3rem;
}
.contact-info.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    gap: 2.5rem;
}

.contact-info.contact-grid--three {
    grid-template-columns: repeat(3, 1fr);
    max-width: 720px;
}

@media (max-width: 768px) {
    .contact-info.contact-grid--three {
        grid-template-columns: 1fr;
    }
}

.contact-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    align-items: center;
}

.contact-label {
    font-size: 0.75rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--color-text-secondary);
}

.contact-link {
    color: var(--color-text);
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.contact-link:after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-text);
    transition: width 0.3s ease;
}

.contact-link:hover:after {
    width: 100%;
}

.contact-address-block {
    margin: 0 auto 1.5rem;
    max-width: 640px;
    text-align: center;
}

.contact-address-text {
    margin: 0.5rem 0 1rem;
    font-size: 1.05rem;
    line-height: 1.55;
    color: var(--color-text);
}

.contact-link--inline {
    display: inline-block;
    font-size: 0.95rem;
}

.contact-map-wrap {
    width: 100%;
    max-width: min(900px, 100%);
    margin: 0 auto 2.5rem;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    line-height: 0;
}

.contact-map-wrap iframe {
    display: block;
    width: 100%;
    height: min(400px, 60vh);
    min-height: 280px;
}

.contact-description {
    color: var(--color-text);
    font-size: 1.05rem;
    font-weight: 400;
    line-height: 1.6;
    max-width: 500px;
    margin: 0 auto 3rem;
    opacity: 0.9;
}

/* Карточка заявки */
.contact-form-card {
    position: relative;
    isolation: isolate;
    max-width: min(520px, 100%);
    margin: 0 auto 2.5rem;
    border-radius: calc(var(--radius-lg) + 2px);
    background: var(--color-surface);
    border: 1px solid rgba(var(--color-teal-500-rgb, 33, 128, 141), 0.22);
    box-shadow:
        0 0 0 1px rgba(255, 255, 255, 0.06) inset,
        0 32px 64px rgba(0, 0, 0, 0.14),
        0 4px 24px rgba(0, 0, 0, 0.06);
    overflow: hidden;
}

.contact-form-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background:
        radial-gradient(ellipse 95% 55% at 100% -5%, rgba(var(--color-teal-500-rgb, 33, 128, 141), 0.2), transparent 52%),
        radial-gradient(ellipse 80% 45% at 0% 105%, rgba(70, 90, 160, 0.12), transparent 48%);
    pointer-events: none;
    z-index: 0;
}

.contact-form-card__accent {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 5px;
    background: linear-gradient(
        180deg,
        #3ad4e8 0%,
        var(--color-primary) 38%,
        var(--color-teal-600) 72%,
        rgba(55, 75, 140, 0.95) 100%
    );
    box-shadow: 0 0 24px rgba(var(--color-teal-500-rgb, 33, 128, 141), 0.45);
    pointer-events: none;
    z-index: 1;
}

.contact-form-card__inner {
    position: relative;
    z-index: 2;
    padding: clamp(1.5rem, 4vw, 2.25rem) clamp(1.25rem, 4vw, 2rem) clamp(1.75rem, 4vw, 2.5rem)
        clamp(1.1rem + 5px, 3vw, 1.5rem + 5px);
}

.contact-form-card__head {
    margin-bottom: clamp(1.35rem, 3vw, 1.85rem);
    padding-bottom: 1.25rem;
    border-bottom: 1px solid rgba(var(--color-teal-500-rgb, 33, 128, 141), 0.12);
}

.contact-form-card__eyebrow {
    font-size: 0.68rem;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: var(--color-primary);
    font-weight: 600;
    margin: 0 0 0.65rem;
}

.contact-form-card__eyebrow::after {
    content: '';
    display: block;
    width: 3rem;
    height: 2px;
    margin-top: 0.65rem;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--color-primary), rgba(var(--color-teal-500-rgb, 33, 128, 141), 0.15));
}

.contact-form-card__title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(1.45rem, 4.2vw, 1.95rem);
    font-weight: 500;
    margin: 0 0 0.65rem;
    color: var(--color-text);
    line-height: 1.18;
    letter-spacing: -0.02em;
}

.contact-form-card__sub {
    margin: 0;
    font-size: clamp(0.9rem, 2.5vw, 0.98rem);
    color: var(--color-text-secondary);
    line-height: 1.6;
    max-width: 42ch;
}

.contact-form__grid {
    display: grid;
    gap: 1.25rem 1.35rem;
    grid-template-columns: 1fr;
    margin-bottom: 1.65rem;
}

/* Две колонки только с планшета в альбомной ориентации — в портрете полная ширина */
@media (min-width: 768px) {
    .contact-form__grid {
        grid-template-columns: 1fr 1fr;
    }

    .form-row--span {
        grid-column: 1 / -1;
    }
}

.contact-form--in-card .form-row {
    margin-bottom: 0;
}

/* Contact form */
.contact-form {
    max-width: min(560px, 100%);
    margin: 0 auto;
    text-align: left;
}

.form-row {
    margin-bottom: 1.75rem;
}

.form-row label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 0.5rem;
    padding-bottom: 0.25rem;
    line-height: 1.4;
    transition: color 0.2s;
    position: relative;
    top: 0;
    left: 0;
}

.contact-form-card .form-row label,
.contact-form--in-card .form-row label {
    font-size: 0.76rem;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: 0.45rem;
}

.form-input {
    width: 100%;
    min-height: 48px;
    padding: 0.85rem 1.1rem;
    margin-top: 0;
    margin-bottom: 0;
    font-size: 1rem;
    font-family: inherit;
    color: var(--color-text);
    background: rgba(var(--color-teal-500-rgb, 33, 128, 141), 0.04);
    border: 1px solid var(--color-border);
    border-radius: 14px;
    transition: border-color 0.3s, box-shadow 0.3s, background 0.25s;
}

.contact-form-card .form-input {
    background: rgba(0, 0, 0, 0.2);
    border-color: rgba(255, 255, 255, 0.08);
}

[data-color-scheme="light"] .contact-form-card .form-input {
    background: rgba(var(--color-teal-500-rgb, 33, 128, 141), 0.06);
    border-color: var(--color-border);
}

.contact-form-card .form-input:focus {
    background: var(--color-background);
}

.form-input::placeholder {
    color: var(--color-text-secondary);
    opacity: 0.6;
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(var(--color-teal-500-rgb, 33, 128, 141), 0.2);
}

.form-row:focus-within label {
    color: var(--color-primary);
}

.form-textarea {
    min-height: 132px;
    resize: vertical;
}

/* iOS: 16px в полях, чтобы не зумило фокус */
@media (max-width: 767.98px) {
    .contact-form-card .form-input,
    .contact-form-card .form-textarea,
    .contact-form--in-card .form-input,
    .contact-form--in-card .form-textarea {
        font-size: 16px;
    }
}

.contact-form {
    animation: formFadeIn 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes formFadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.form-submit {
    width: 100%;
    min-height: 52px;
    padding: 0.95rem 1.5rem;
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: white;
    background: linear-gradient(
        145deg,
        #3bc4d4 0%,
        var(--color-teal-500) 35%,
        var(--color-primary) 70%,
        #155a63 100%
    );
    border: none;
    border-radius: 999px;
    cursor: pointer;
    touch-action: manipulation;
    transition: filter 0.25s, transform 0.2s, box-shadow 0.25s;
    box-shadow:
        0 1px 0 rgba(255, 255, 255, 0.22) inset,
        0 -2px 0 rgba(0, 0, 0, 0.12) inset,
        0 10px 28px rgba(var(--color-teal-500-rgb, 33, 128, 141), 0.42);
}

.form-submit:hover:not(:disabled) {
    filter: brightness(1.06);
    transform: translateY(-2px);
    box-shadow:
        0 1px 0 rgba(255, 255, 255, 0.28) inset,
        0 -2px 0 rgba(0, 0, 0, 0.1) inset,
        0 14px 36px rgba(var(--color-teal-500-rgb, 33, 128, 141), 0.5);
}

.form-submit:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--color-teal-500-rgb, 33, 128, 141), 0.4);
}

.form-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.form-status {
    margin-top: 1rem;
    font-size: 0.9rem;
    min-height: 1.4em;
}

.form-status.success {
    color: var(--color-success);
}

.form-status.error {
    color: var(--color-error);
}

.form-hint {
    margin-top: 1rem;
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    opacity: 0.7;
}

/* Footer */
.footer {
    padding: 3rem 0;
    border-top: 1px solid var(--color-border);
}

.footer-content {
    text-align: center;
}

.footer p {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    font-weight: 300;
}

/* Page load animation */
body.preload * {
    animation-play-state: paused !important;
}

/* Contact items animation */
.contact-item {
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.contact-item:hover {
    transform: translateY(-5px) scale(1.02);
}

.contact-link:hover {
    color: var(--color-primary);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-burger {
        display: flex;
    }

    .nav-container {
        padding: 0.75rem 1rem;
    }

    :root {
        --nav-logo-height: clamp(1.875rem, 6.5vw, 2.375rem);
        --nav-logo-max-width: min(200px, calc(100vw - 5.5rem));
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 85%;
        max-width: 300px;
        height: 100vh;
        background: var(--color-surface);
        flex-direction: column;
        justify-content: flex-start;
        gap: 0;
        padding: 5rem 1.5rem 2rem;
        box-shadow: -10px 0 40px rgba(0,0,0,0.15);
        transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        z-index: 999;
        align-items: stretch;
    }

    .nav.open .nav-menu {
        right: 0;
    }

    .nav.open .nav-menu a {
        opacity: 1;
        transform: translateX(0);
    }

    .nav-menu a {
        font-size: 1.1rem;
        padding: 1rem 0;
        border-bottom: 1px solid var(--color-border);
        opacity: 0;
        transform: translateX(20px);
        transition: opacity 0.3s 0.1s, transform 0.3s 0.1s;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .contact-info,
    .contact-info.contact-grid {
        grid-template-columns: 1fr;
        flex-direction: column;
        gap: 2rem;
    }
    
    
    .container {
        padding: 0 1rem;
    }
    
    .nav-container {
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: clamp(2.5rem, 12vw, 3.5rem);
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .about-title,
    .portfolio-title,
    .contact-title {
        font-size: clamp(2rem, 8vw, 2.5rem);
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .hero-container {
        padding: 0 1.25rem;
    }

    .about, .portfolio, .contact {
        padding: 5rem 0;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Smooth animations */
.project-card,
.contact-link,
.nav-menu a {
    transition: all 0.3s var(--ease-standard);
}

/* Loading animation for images */
.project-image img {
    opacity: 0;
    animation: imgFadeIn 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes fadeIn {
    to { opacity: 1; }
}

@keyframes imgFadeIn {
    to { opacity: 1; }
}

/* Dark mode hero gradient */
@media (prefers-color-scheme: dark) {
    .hero-gradient {
        background: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(50, 184, 198, 0.12), transparent 50%),
                    radial-gradient(ellipse 60% 40% at 80% 80%, rgba(167, 169, 169, 0.05), transparent 40%);
    }
}

/* ========== Multi-page: compact hero ========== */
.page-hero {
    min-height: 55vh;
    padding: 8rem 1rem 4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-hero .hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.page-hero .hero-container {
    position: relative;
    z-index: 5;
    max-width: 720px;
}

.page-hero .hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    margin-bottom: 1rem;
}

.page-hero .hero-subtitle {
    max-width: 100%;
}

.nav-menu a.active {
    color: var(--color-primary);
}

.nav-menu a.active::after {
    width: 100%;
    background-color: var(--color-primary);
}

/* Inner sections */
.page-section {
    padding: 5rem 0;
}

.page-section.alt {
    background-color: var(--color-surface);
}

.section-lead {
    max-width: 720px;
    margin: 0 auto 3rem;
    text-align: center;
    color: var(--color-text-secondary);
    font-size: 1.05rem;
    line-height: 1.75;
    font-weight: 300;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    padding: 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-card-border);
    background: var(--color-surface);
    transition: transform 0.35s var(--ease-standard), box-shadow 0.35s ease;
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.service-card h3 {
    font-family: 'Playfair Display', serif;
    font-size: 1.35rem;
    margin-bottom: 0.75rem;
}

.service-card p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    line-height: 1.65;
    margin-bottom: 0;
}

.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 2rem;
    text-align: center;
    margin: 3rem 0;
}

.stat-num {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2rem, 4vw, 2.75rem);
    color: var(--color-primary);
    line-height: 1.1;
}

.stat-label {
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
    margin-top: 0.5rem;
}

/* Calculator */
.estimate-box {
    max-width: 520px;
    margin: 2rem auto 0;
    padding: 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    background: var(--color-background);
    text-align: left;
}

.estimate-box label {
    display: block;
    font-size: 0.85rem;
    margin-bottom: 0.35rem;
    color: var(--color-text);
}

.estimate-box input,
.estimate-box select {
    width: 100%;
    padding: 0.85rem 1rem;
    margin-bottom: 1rem;
    font-family: inherit;
    font-size: 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-base);
    background: var(--color-surface);
    color: var(--color-text);
}

.estimate-result {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: var(--radius-base);
    background: rgba(var(--color-teal-500-rgb, 33, 128, 141), 0.12);
    font-size: 0.95rem;
    color: var(--color-text);
}

.estimate-disclaimer {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    margin-top: 0.75rem;
    opacity: 0.85;
}

/* Правый нижний угол: меню контактов + заявка */
.sticky-stack {
    position: fixed;
    bottom: max(1rem, env(safe-area-inset-bottom, 0px));
    right: max(1rem, env(safe-area-inset-right, 0px));
    z-index: 998;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.65rem;
}

.sticky-contact {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.sticky-contact__menu-anchor {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.sticky-contact__menu {
    position: absolute;
    right: 0;
    bottom: calc(100% + 0.5rem);
    min-width: min(260px, calc(100vw - 2rem));
    max-width: calc(100vw - 1.5rem);
    padding: 0.4rem;
    border-radius: var(--radius-md);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.18);
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.sticky-contact__menu[hidden] {
    display: none !important;
}

.sticky-contact__item {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    min-height: 48px;
    padding: 0.65rem 0.95rem;
    border-radius: var(--radius-base);
    text-decoration: none;
    color: var(--color-text);
    font-size: 0.92rem;
    font-weight: 500;
    transition: background 0.15s ease;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.sticky-contact__item:hover {
    background: rgba(var(--color-teal-500-rgb, 33, 128, 141), 0.12);
    color: var(--color-primary);
}

.sticky-contact__svg {
    width: 1.15rem;
    height: 1.15rem;
    flex-shrink: 0;
    opacity: 0.9;
}

.sticky-contact__max-badge {
    width: 1.35rem;
    height: 1.35rem;
    border-radius: 6px;
    background: linear-gradient(145deg, #5b8cff, #3d5eff);
    color: #fff;
    font-size: 0.72rem;
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    letter-spacing: -0.02em;
}

.sticky-contact__toggle {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    border: 1px solid rgba(var(--color-teal-500-rgb, 33, 128, 141), 0.35);
    background: var(--color-surface);
    color: var(--color-text);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 22px rgba(0, 0, 0, 0.12);
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.sticky-contact__toggle:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.16);
}

.sticky-contact__toggle.is-open {
    background: rgba(var(--color-teal-500-rgb, 33, 128, 141), 0.15);
    color: var(--color-primary);
}

.sticky-cta {
    min-height: 48px;
    padding: 0.65rem 1.2rem 0.65rem 0.95rem;
    font-size: 0.74rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #fff;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
    background: linear-gradient(155deg, #2a9aad 0%, #217a88 45%, #1a5c66 100%);
    box-shadow:
        0 0 0 1px rgba(255, 255, 255, 0.2) inset,
        0 4px 0 rgba(0, 0, 0, 0.08) inset,
        0 10px 32px rgba(33, 128, 141, 0.45);
    transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.sticky-cta__ic {
    flex-shrink: 0;
    opacity: 0.95;
}

.sticky-cta__label {
    position: relative;
    z-index: 1;
}

.sticky-cta:hover {
    transform: translateY(-3px);
    filter: brightness(1.06);
    box-shadow:
        0 0 0 1px rgba(255, 255, 255, 0.25) inset,
        0 14px 36px rgba(33, 128, 141, 0.5);
}

.sticky-cta:active {
    transform: translateY(-1px);
}

@media (max-width: 768px) {
    .sticky-stack {
        bottom: max(0.75rem, env(safe-area-inset-bottom, 0px));
        right: max(0.75rem, env(safe-area-inset-right, 0px));
        gap: 0.55rem;
    }

    .sticky-cta {
        font-size: 0.66rem;
        padding: 0.55rem 0.95rem 0.55rem 0.8rem;
        max-width: calc(100vw - 5.5rem);
    }

    .sticky-contact__toggle {
        width: 50px;
        height: 50px;
    }

    .contact-form-card__inner {
        padding: 1.5rem 1.15rem 1.75rem calc(1rem + 5px);
    }

    .contact-form-card__head {
        padding-bottom: 1rem;
    }
}

/* Планшет: чуть больше отступы у плавающих кнопок */
@media (min-width: 769px) and (max-width: 1024px) {
    .sticky-stack {
        bottom: max(1.25rem, env(safe-area-inset-bottom, 0px));
        right: max(1.25rem, env(safe-area-inset-right, 0px));
    }
}

/* AI assistant */
.ai-fab {
    position: fixed;
    bottom: max(1.5rem, env(safe-area-inset-bottom, 0px));
    left: max(1.5rem, env(safe-area-inset-left, 0px));
    width: 56px;
    height: 56px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    z-index: 1002;
    background: linear-gradient(135deg, var(--color-teal-600), var(--color-teal-500));
    color: #fff;
    font-size: 1.35rem;
    box-shadow: 0 8px 28px rgba(33, 128, 141, 0.45);
    transition: transform 0.25s ease;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.ai-fab:hover {
    transform: scale(1.06);
}

.ai-panel {
    position: fixed;
    bottom: 5.5rem;
    left: 1.5rem;
    width: min(400px, calc(100vw - 2rem));
    max-height: min(520px, 70vh);
    z-index: 1002;
    display: flex;
    flex-direction: column;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
    opacity: 0;
    pointer-events: none;
    transform: translateY(12px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.ai-panel.open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.ai-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.65rem;
    padding: 0.7rem 0.85rem 0.7rem 1rem;
    background: var(--color-charcoal-700);
    color: var(--color-gray-200);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.ai-panel-header__brand {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    min-width: 0;
    flex: 1;
}

.ai-panel-header__logo {
    height: 1.85rem;
    width: auto;
    max-width: min(140px, 38vw);
    object-fit: contain;
    object-position: left center;
    flex-shrink: 0;
    aspect-ratio: 819 / 158;
    filter: brightness(0) invert(1);
}

.ai-panel-header__title {
    font-weight: 600;
    font-size: 0.9rem;
    line-height: 1.25;
    letter-spacing: 0.02em;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ai-panel-close {
    flex-shrink: 0;
    width: 2.25rem;
    height: 2.25rem;
    margin: 0;
    padding: 0;
    border: none;
    border-radius: var(--radius-base);
    background: transparent;
    color: var(--color-gray-200);
    font-size: 1.35rem;
    line-height: 1;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease, color 0.2s ease;
}

.ai-panel-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.ai-panel-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    min-height: 200px;
    max-height: 320px;
}

.ai-msg {
    padding: 0.65rem 0.9rem;
    border-radius: var(--radius-base);
    font-size: 0.875rem;
    line-height: 1.5;
    max-width: 92%;
}

.ai-msg.user {
    align-self: flex-end;
    background: rgba(var(--color-teal-500-rgb, 33, 128, 141), 0.2);
    color: var(--color-text);
}

.ai-msg.bot {
    align-self: flex-start;
    background: var(--color-secondary);
    color: var(--color-text);
}

.ai-msg.bot .ai-msg__link {
    color: var(--color-primary);
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 2px;
}

.ai-msg.bot .ai-msg__link:hover {
    color: var(--color-primary-hover);
}

.ai-msg.bot .ai-msg__nav-title {
    margin: 0 0 0.35rem;
    font-size: 0.82rem;
    color: var(--color-text-secondary);
}

.ai-msg.bot .ai-msg__nav-list {
    margin: 0 0 0.5rem 1.1rem;
    padding: 0;
    font-size: 0.85rem;
    line-height: 1.55;
    list-style: disc;
}

.ai-msg.bot p {
    margin: 0 0 0.5rem;
}

.ai-msg.bot p:last-child {
    margin-bottom: 0;
}

.ai-panel-form {
    display: flex;
    gap: 0.5rem;
    padding: 0.75rem;
    border-top: 1px solid var(--color-border);
}

.ai-panel-form input {
    flex: 1;
    padding: 0.65rem 0.85rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-base);
    font-size: 0.875rem;
    font-family: inherit;
    background: var(--color-background);
    color: var(--color-text);
}

.ai-panel-form button {
    padding: 0.65rem 1rem;
    border: none;
    border-radius: var(--radius-base);
    background: var(--color-primary);
    color: var(--color-btn-primary-text);
    cursor: pointer;
    font-weight: 500;
}

.ai-hint {
    font-size: 0.7rem;
    color: var(--color-text-secondary);
    padding: 0 1rem 0.75rem;
    opacity: 0.85;
}

@media (max-width: 768px) {
    .ai-fab {
        bottom: max(1rem, env(safe-area-inset-bottom, 0px));
        left: max(1rem, env(safe-area-inset-left, 0px));
    }
    .ai-panel {
        left: max(1rem, env(safe-area-inset-left, 0px));
        right: max(1rem, env(safe-area-inset-right, 0px));
        width: auto;
        bottom: max(5rem, calc(env(safe-area-inset-bottom, 0px) + 4.25rem));
    }
}

/* Theme toggle */
.theme-toggle {
    position: fixed;
    top: 5.5rem;
    right: 1.5rem;
    z-index: 999;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    cursor: pointer;
    font-size: 1.1rem;
    opacity: 0.85;
    transition: opacity 0.2s;
}

.theme-toggle:hover {
    opacity: 1;
}

/* Timeline about */
.timeline {
    max-width: 640px;
    margin: 0 auto;
    border-left: 1px solid var(--color-border);
    padding-left: 2rem;
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
    padding-bottom: 0.5rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: calc(-2rem - 5px);
    top: 0.35rem;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--color-primary);
}

.timeline-item h4 {
    font-family: 'Playfair Display', serif;
    margin-bottom: 0.5rem;
}

.timeline-item p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    margin: 0;
}

/* Модальное окно заявки */
.request-modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.28s ease;
}

.request-modal.open {
    opacity: 1;
    pointer-events: auto;
}

.request-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(4px);
}

.request-modal__box {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 480px;
    max-height: min(90vh, 640px);
    overflow: hidden;
    padding: 0;
    border-radius: var(--radius-lg);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.28);
}

.request-modal__box .contact-form-card__inner {
    position: relative;
    max-height: min(90vh, 640px);
    overflow-y: auto;
    padding: 1.65rem 1.5rem 1.5rem calc(1.1rem + 5px);
}

.request-modal__box .request-modal__title {
    font-size: clamp(1.25rem, 3vw, 1.55rem);
    margin-bottom: 0.35rem;
}

.request-modal__x {
    position: absolute;
    top: 0.65rem;
    right: 0.75rem;
    z-index: 5;
    width: 2.25rem;
    height: 2.25rem;
    border: none;
    background: transparent;
    color: var(--color-text-secondary);
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    border-radius: var(--radius-base);
    transition: color 0.2s, background 0.2s;
}

.request-modal__x:hover {
    color: var(--color-text);
    background: var(--color-secondary);
}

.request-modal__title {
    font-family: 'Playfair Display', serif;
    font-size: 1.65rem;
    font-weight: 500;
    margin: 0 2rem 0.5rem 0;
    color: var(--color-text);
}

.request-modal__lead {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin: 0 0 1.25rem;
    line-height: 1.55;
}

.request-modal__form {
    margin: 0;
    animation: none;
}

.request-modal__hint {
    margin-bottom: 0;
}

/* Кнопка «Наверх» */
.scroll-to-top {
    position: fixed;
    bottom: max(7.5rem, calc(env(safe-area-inset-bottom, 0px) + 6rem));
    left: max(1.5rem, env(safe-area-inset-left, 0px));
    z-index: 997;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text);
    font-size: 1.1rem;
    cursor: pointer;
    opacity: 0;
    transform: translateY(12px);
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease, background 0.2s;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
}

.scroll-to-top.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.scroll-to-top:hover {
    background: var(--color-secondary);
}

@media (max-width: 768px) {
    .scroll-to-top {
        bottom: max(6rem, calc(env(safe-area-inset-bottom, 0px) + 5rem));
        left: max(1rem, env(safe-area-inset-left, 0px));
        width: 44px;
        height: 44px;
        min-width: 44px;
        min-height: 44px;
    }
}

/* Модалка проекта портфолио */
.portfolio-modal {
    position: fixed;
    inset: 0;
    z-index: 2100;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    padding-top: max(1rem, env(safe-area-inset-top));
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.portfolio-modal.open {
    opacity: 1;
    pointer-events: auto;
}

.portfolio-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.72);
    backdrop-filter: blur(6px);
}

.portfolio-modal__panel {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 920px;
    max-height: min(92vh, 900px);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    border-radius: var(--radius-lg);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    box-shadow: 0 28px 64px rgba(0, 0, 0, 0.45);
}

.portfolio-modal__x {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    z-index: 5;
    width: 2.5rem;
    height: 2.5rem;
    border: none;
    border-radius: var(--radius-base);
    background: rgba(0, 0, 0, 0.35);
    color: #fff;
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    transition: background 0.2s;
}

.portfolio-modal__x:hover {
    background: rgba(0, 0, 0, 0.55);
}

.portfolio-modal__gallery {
    position: relative;
    flex-shrink: 0;
    background: #0d0d0d;
}

.portfolio-modal__stage {
    aspect-ratio: 16 / 10;
    max-height: 48vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.portfolio-modal__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.portfolio-modal__arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 4;
    width: 2.75rem;
    height: 2.75rem;
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.4);
    color: #fff;
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s;
}

.portfolio-modal__arrow:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.6);
}

.portfolio-modal__arrow--prev {
    left: 0.75rem;
}

.portfolio-modal__arrow--next {
    right: 0.75rem;
}

.portfolio-modal__thumbs {
    display: flex;
    gap: 0.5rem;
    padding: 0.65rem 1rem;
    overflow-x: auto;
    flex-shrink: 0;
    background: var(--color-charcoal-800, #262828);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    -webkit-overflow-scrolling: touch;
}

[data-color-scheme="light"] .portfolio-modal__thumbs {
    background: var(--color-gray-200);
    border-bottom-color: var(--color-border);
}

.portfolio-modal__thumb {
    flex: 0 0 72px;
    width: 72px;
    height: 52px;
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    background-size: cover;
    background-position: center;
    cursor: pointer;
    padding: 0;
    opacity: 0.75;
    transition: opacity 0.2s, border-color 0.2s;
}

.portfolio-modal__thumb:hover,
.portfolio-modal__thumb.is-active {
    opacity: 1;
    border-color: var(--color-primary);
}

.portfolio-modal__category {
    margin: 1rem 1.25rem 0;
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
}

.portfolio-modal__title {
    margin: 0.35rem 1.25rem 0.75rem;
    font-family: 'Playfair Display', serif;
    font-size: clamp(1.35rem, 3vw, 1.75rem);
    font-weight: 500;
    color: var(--color-text);
    line-height: 1.2;
}

.portfolio-modal__text {
    margin: 0 1.25rem 1.25rem;
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    overflow-y: auto;
    max-height: 28vh;
}

@media (max-width: 600px) {
    .portfolio-modal__arrow {
        width: 2.25rem;
        height: 2.25rem;
        font-size: 1.25rem;
    }
    .portfolio-modal__arrow--prev {
        left: 0.4rem;
    }
    .portfolio-modal__arrow--next {
        right: 0.4rem;
    }
    .portfolio-modal__text {
        max-height: 22vh;
    }
}