/*
 * GS BTP - Site Web Corporate
 * Thème : Corporate Sophistiqué (Style Finance/Droit Français)
 * Palette : Bleu Marine Profond (#002366), Bordeaux (#800020), Argent
 *
 * ===============================================
 * SCHÉMA DE COULEURS - LIGHT MODE
 * ===============================================
 * - Primary: #1d3557 (Bleu Marine Profond)
 * - Secondary: #457b9d (Bleu Acier)
 * - Accent: #a8dadc (Bleu Ciel Pâle)
 * - Neutral: #f1faee (Blanc Cassé)
 * - Background: #ffffff (Blanc Pur)
 * - Text: #1a1a1a (Noir Profond)
 *
 * ===============================================
 * SCHÉMA DE COULEURS - DARK MODE
 * ===============================================
 * - Primary: #002366 (Bleu Marine Corporate)
 * - Secondary: #800020 (Bordeaux Élégant)
 * - Accent: #c9a227 (Or Premium)
 * - Neutral: #2d2d2d (Gris Anthracite)
 * - Background: #1a1a1a (Noir Profond)
 * - Text: #f5f5f5 (Blanc Neutre)
 */

/* ===============================================
   VARIABLES CSS & ROOT
   =============================================== */
:root {
  /* Light Mode Colors */
  --color-primary: #1d3557;
  --color-secondary: #457b9d;
  --color-accent: #a8dadc;
  --color-neutral: #f1faee;
  --color-bg: #ffffff;
  --color-text: #1a1a1a;
  --color-white: #ffffff;
  --color-border: #e0e0e0;
  --color-success: #2a9d8f;
  --color-warning: #e76f51;
  --color-error: #d62828;

  /* Corporate Theme Colors (Dark Mode) */
  --color-corporate-navy: #002366;
  --color-corporate-bordeaux: #800020;
  --color-corporate-gold: #c9a227;
  --color-corporate-silver: #c0c0c0;

  /* Typography */
  --font-primary: 'Montserrat', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-secondary: 'Lato', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-serif: 'Playfair Display', Georgia, serif;

  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
  --shadow-corporate: 0 4px 20px rgba(0, 35, 102, 0.15);

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;

  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

/* Dark Mode */
[data-theme="dark"] {
  --color-primary: #002366;
  --color-secondary: #800020;
  --color-accent: #c9a227;
  --color-neutral: #2d2d2d;
  --color-bg: #1a1a1a;
  --color-text: #f5f5f5;
  --color-white: #1a1a1a;
  --color-border: #3d3d3d;
  --shadow-corporate: 0 4px 20px rgba(0, 35, 102, 0.4);
}

/* ===============================================
   RESET & BASE STYLES
   =============================================== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-secondary);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  transition: background-color var(--transition-base), color var(--transition-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Pinstripe Background Pattern */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: repeating-linear-gradient(
    90deg,
    transparent,
    transparent 2px,
    rgba(0, 35, 102, 0.02) 2px,
    rgba(0, 35, 102, 0.02) 4px
  );
  pointer-events: none;
  z-index: -1;
}

/* ===============================================
   TYPOGRAPHY
   =============================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

[data-theme="dark"] h1,
[data-theme="dark"] h2,
[data-theme="dark"] h3,
[data-theme="dark"] h4,
[data-theme="dark"] h5,
[data-theme="dark"] h6 {
  color: var(--color-accent);
}

p {
  margin-bottom: var(--spacing-md);
}

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

a:hover,
a:focus {
  color: var(--color-secondary);
  text-decoration: underline;
}

/* ===============================================
   UTILITY CLASSES
   =============================================== */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-fluid {
  width: 100%;
  padding: 0 var(--spacing-lg);
}

.section {
  padding: var(--spacing-3xl) 0;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.font-serif { font-family: var(--font-serif); }

.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.text-accent { color: var(--color-accent); }

.bg-primary { background-color: var(--color-primary); }
.bg-secondary { background-color: var(--color-secondary); }
.bg-neutral { background-color: var(--color-neutral); }

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

/* ===============================================
   HEADER & NAVIGATION (Atelier Theme)
   =============================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  background: var(--color-bg);
  box-shadow: var(--shadow-corporate);
  transition: all var(--transition-base);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-lg);
  max-width: 1400px;
  margin: 0 auto;
}

/* Logo - Artisan Stamp Style */
.header__logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  text-decoration: none;
}

.header__logo-image {
  width: 464px;
  height: auto;
  max-height: 80px;
  object-fit: contain;
}

.header__logo-text {
  font-family: var(--font-serif);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.05em;
}

.header__logo-badge {
  background: var(--color-corporate-bordeaux);
  color: var(--color-white);
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* Navigation - Floating Cluster */
.nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.nav__list {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav__item {
  position: relative;
}

.nav__link {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--color-text);
  font-family: var(--font-primary);
  font-weight: 500;
  font-size: var(--text-sm);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  position: relative;
}

.nav__link::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--color-corporate-bordeaux);
  transform: translateX(-50%);
  transition: width var(--transition-base);
}

.nav__link:hover,
.nav__link:focus {
  color: var(--color-corporate-bordeaux);
  background: var(--color-neutral);
  text-decoration: none;
}

.nav__link:hover::before,
.nav__link:focus::before {
  width: 80%;
}

.nav__icon {
  font-size: var(--text-lg);
}

/* Hidden Discover Menu */
.nav__discover {
  position: relative;
}

.nav__discover-toggle {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  background: linear-gradient(135deg, var(--color-corporate-navy), var(--color-corporate-bordeaux));
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-lg);
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: var(--text-sm);
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-md);
}

.nav__discover-toggle:hover,
.nav__discover-toggle:focus {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.nav__discover-menu {
  position: absolute;
  top: calc(100% + var(--spacing-sm));
  right: 0;
  min-width: 200px;
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: var(--spacing-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-base);
}

.nav__discover:hover .nav__discover-menu,
.nav__discover:focus-within .nav__discover-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav__discover-item {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--color-text);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
}

.nav__discover-item:hover,
.nav__discover-item:focus {
  background: var(--color-neutral);
  color: var(--color-corporate-bordeaux);
}

/* Theme Switcher */
.theme-switcher {
  position: relative;
  display: flex;
  align-items: center;
}

.theme-switcher__toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--color-neutral);
  border: 2px solid var(--color-border);
  border-radius: 50%;
  cursor: pointer;
  transition: all var(--transition-base);
}

.theme-switcher__toggle:hover,
.theme-switcher__toggle:focus {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.theme-switcher__icon {
  font-size: var(--text-xl);
  color: var(--color-text);
}

.theme-switcher__toggle:hover .theme-switcher__icon,
.theme-switcher__toggle:focus .theme-switcher__icon {
  color: var(--color-white);
}

/* Mobile Menu Toggle */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--spacing-sm);
  background: transparent;
  border: none;
  cursor: pointer;
}

.mobile-toggle__span {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: all var(--transition-base);
}

/* ===============================================
   HERO SECTION
   =============================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-top: 80px;
}

.hero__media {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.hero__image,
.hero__video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: blur(3px);
  transform: scale(1.03);
}

.hero__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, rgba(0, 35, 102, 0.3), rgba(0, 35, 102, 0.5));
  z-index: 0;
}

.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: var(--color-white);
  max-width: 900px;
  padding: var(--spacing-xl);
}

.hero__title {
  font-family: var(--font-serif);
  font-size: clamp(var(--text-3xl), 6vw, var(--text-5xl));
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--spacing-lg);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero__subtitle {
  font-size: clamp(var(--text-lg), 2.5vw, var(--text-2xl));
  font-weight: 300;
  margin-bottom: var(--spacing-xl);
  text-shadow: 0 1px 5px rgba(0, 0, 0, 0.3);
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  background: linear-gradient(135deg, var(--color-corporate-bordeaux), var(--color-corporate-navy));
  color: var(--color-white);
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: var(--text-lg);
  text-decoration: none;
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-lg);
}

.hero__cta:hover,
.hero__cta:focus {
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
  text-decoration: none;
  color: var(--color-white);
}

/* ===============================================
   SECTIONS
   =============================================== */
.section__header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section__title {
  font-family: var(--font-serif);
  font-size: var(--text-4xl);
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
  position: relative;
  display: inline-block;
}

.section__title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-corporate-bordeaux), var(--color-corporate-navy));
}

[data-theme="dark"] .section__title::after {
  background: linear-gradient(90deg, var(--color-corporate-gold), var(--color-corporate-silver));
}

.section__subtitle {
  font-size: var(--text-lg);
  color: var(--color-secondary);
  max-width: 700px;
  margin: var(--spacing-lg) auto 0;
}

/* Background Image Sections */
.section--bg-image {
  position: relative;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

.section--bg-image::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.9);
  filter: blur(3px);
}

[data-theme="dark"] .section--bg-image::before {
  background: rgba(26, 26, 26, 0.9);
}

.section--bg-image > .container {
  position: relative;
  z-index: 1;
}

/* ===============================================
   CARDS
   =============================================== */
.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-xl);
  transition: all var(--transition-base);
  border: 1px solid var(--color-border);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-corporate);
  border-color: var(--color-corporate-bordeaux);
}

[data-theme="dark"] .card {
  background: var(--color-neutral);
  border-color: #3d3d3d;
}

.card__icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-corporate-navy), var(--color-corporate-bordeaux));
  color: var(--color-white);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-lg);
  font-size: var(--text-2xl);
}

.card__title {
  font-family: var(--font-primary);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
}

[data-theme="dark"] .card__title {
  color: var(--color-accent);
}

.card__text {
  color: var(--color-text);
  margin-bottom: var(--spacing-md);
  flex-grow: 1;
}

.card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--color-corporate-bordeaux);
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.card__link:hover,
.card__link:focus {
  color: var(--color-corporate-navy);
  gap: var(--spacing-sm);
}

/* Grid Layouts */
.grid {
  display: grid;
  gap: var(--spacing-xl);
}

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

.grid--3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid--4 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* ===============================================
   BUTTONS
   =============================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: var(--text-base);
  text-decoration: none;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-corporate-bordeaux), var(--color-corporate-navy));
  color: var(--color-white);
}

.btn--primary:hover,
.btn--primary:focus {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  text-decoration: none;
  color: var(--color-white);
}

.btn--secondary {
  background: var(--color-white);
  color: var(--color-corporate-navy);
  border: 2px solid var(--color-corporate-navy);
}

.btn--secondary:hover,
.btn--secondary:focus {
  background: var(--color-corporate-navy);
  color: var(--color-white);
}

[data-theme="dark"] .btn--secondary {
  background: var(--color-neutral);
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn--outline {
  background: transparent;
  color: var(--color-corporate-bordeaux);
  border: 2px solid var(--color-corporate-bordeaux);
}

.btn--outline:hover,
.btn--outline:focus {
  background: var(--color-corporate-bordeaux);
  color: var(--color-white);
}

.btn--lg {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: var(--text-lg);
}

/* ===============================================
   FORMS
   =============================================== */
.form {
  max-width: 600px;
  margin: 0 auto;
}

.form__group {
  margin-bottom: var(--spacing-lg);
}

.form__label {
  display: block;
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form__input,
.form__textarea {
  width: 100%;
  padding: var(--spacing-md);
  font-family: var(--font-secondary);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-white);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.form__input:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--color-corporate-bordeaux);
  box-shadow: 0 0 0 3px rgba(128, 0, 32, 0.1);
}

.form__textarea {
  min-height: 150px;
  resize: vertical;
}

[data-theme="dark"] .form__input,
[data-theme="dark"] .form__textarea {
  background: var(--color-neutral);
  border-color: #3d3d3d;
}

/* ===============================================
   FOOTER
   =============================================== */
.footer {
  background: linear-gradient(135deg, var(--color-corporate-navy), #001a4d);
  color: var(--color-white);
  padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer__top {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer__title {
  font-family: var(--font-primary);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
}

.footer__text {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--spacing-md);
}

.footer__links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer__links-item {
  margin-bottom: var(--spacing-sm);
}

.footer__link {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__link:hover,
.footer__link:focus {
  color: var(--color-white);
  text-decoration: underline;
}

.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  color: rgba(255, 255, 255, 0.8);
}

.footer__contact-icon {
  color: var(--color-corporate-gold);
  font-size: var(--text-lg);
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-lg);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-md);
}

.footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.7);
}

.footer__legal-link {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__legal-link:hover,
.footer__legal-link:focus {
  color: var(--color-white);
}

/* ===============================================
   ACCESSIBILITY
   =============================================== */
*:focus-visible {
  outline: 3px solid var(--color-corporate-bordeaux);
  outline-offset: 2px;
}

/* Skip Link */
.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--color-corporate-navy);
  color: var(--color-white);
  padding: var(--spacing-sm) var(--spacing-md);
  text-decoration: none;
  z-index: 9999;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
}

/* ===============================================
   ANIMATIONS
   =============================================== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fadeIn 0.6s ease-out forwards;
}

/* ===============================================
   RESPONSIVE DESIGN
   =============================================== */
@media (max-width: 1024px) {
  :root {
    --text-5xl: 2.5rem;
    --text-4xl: 2rem;
    --text-3xl: 1.75rem;
  }

  .header__logo-image {
    width: 300px;
  }

  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .mobile-toggle {
    display: flex;
  }

  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background: var(--color-bg);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-2xl) var(--spacing-lg);
    transition: right var(--transition-base);
    flex-direction: column;
  }

  .nav.active {
    right: 0;
  }

  .nav__list {
    flex-direction: column;
    width: 100%;
  }

  .nav__link {
    width: 100%;
    padding: var(--spacing-md);
  }

  .header__logo-image {
    width: 200px;
    max-height: 60px;
  }

  .hero__content {
    padding: var(--spacing-md);
  }

  .section__title {
    font-size: var(--text-2xl);
  }

  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }

  .footer__top {
    grid-template-columns: 1fr;
  }

  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }

  .footer__legal {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
}

@media (max-width: 480px) {
  :root {
    --text-5xl: 2rem;
    --text-4xl: 1.75rem;
  }

  .container {
    padding: 0 var(--spacing-md);
  }

  .section {
    padding: var(--spacing-2xl) 0;
  }

  .hero {
    min-height: 70vh;
  }

  .hero__title {
    font-size: var(--text-2xl);
  }

  .hero__subtitle {
    font-size: var(--text-base);
  }
}

/* ===============================================
   PRINT STYLES
   =============================================== */
@media print {
  .header,
  .footer,
  .btn,
  .theme-switcher {
    display: none;
  }

  body {
    background: white;
    color: black;
  }

  .section {
    page-break-inside: avoid;
  }
}