/* ==========================================================================
   GOLS Branding System & Architectural Architecture
   Design Language: Modern Editorial Minimalist
   Typography: Display = Boska (Serif), Body/UI = Satoshi (Sans-Serif)
   ========================================================================== */

:root,
[data-theme="light"] {
  --font-display: "Boska", Georgia, serif;
  --font-body: "Satoshi", "Inter", system-ui, sans-serif;

  /* Fluid Typography Scale (Perfectly Adaptive) */
  --text-xs: clamp(0.75rem, 0.72rem + 0.15vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.84rem + 0.2vw, 1rem);
  --text-base: clamp(1rem, 0.96rem + 0.2vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1.02rem + 0.6vw, 1.375rem);
  --text-xl: clamp(1.5rem, 1.15rem + 1vw, 2.4rem);
  --text-2xl: clamp(2.2rem, 1.6rem + 2.4vw, 4.2rem);

  /* Spacing Scale tokens */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Premium Linen Palette (Light) */
  --color-bg: #faf9f6;
  --color-surface: #ffffff;
  --color-surface-2: #f4f3ee;
  --color-surface-3: #ebe9e0;
  --color-text: #0f172a;
  --color-text-muted: #475569;
  --color-text-faint: #94a3b8;
  --color-border: rgba(15, 23, 42, 0.06);
  --color-divider: rgba(15, 23, 42, 0.04);

  /* Primary Identity Accent: Premium GOLS Teal */
  --color-primary: #01696f;
  --color-primary-hover: #004d52;
  --color-primary-soft: rgba(1, 105, 111, 0.06);
  --color-secondary: #b45309;
  --color-secondary-hover: #78350f;

  --color-footer: #090e11;
  --color-footer-text: #94a3b8;

  /* Border Radii Tokens */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Soft Ambient Modern Shadows */
  --shadow-sm: 0 2px 12px -1px rgba(15, 23, 42, 0.03);
  --shadow-md: 0 12px 32px -4px rgba(1, 105, 111, 0.04);
  --shadow-lg: 0 24px 60px -12px rgba(15, 23, 42, 0.08);

  --content-width: min(1200px, calc(100% - 3rem));
  --transition: 350ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* Premium Dark Midnight Slate Palette */
[data-theme="dark"] {
  --color-bg: #090e17;
  --color-surface: #111a2e;
  --color-surface-2: #16223b;
  --color-surface-3: #1e2e4f;
  --color-text: #f8fafc;
  --color-text-muted: #94a3b8;
  --color-text-faint: #64748b;
  --color-border: rgba(255, 255, 255, 0.05);
  --color-divider: rgba(255, 255, 255, 0.03);

  --color-primary: #02939c;
  --color-primary-hover: #38bdf8;
  --color-primary-soft: rgba(2, 147, 156, 0.1);
  --color-secondary: #fbbf24;
  --color-secondary-hover: #fcd34d;

  --color-footer: #05080d;
  --color-footer-text: #64748b;

  --shadow-sm: 0 4px 20px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 14px 40px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 30px 70px rgba(0, 0, 0, 0.6);
}

/* ==========================================================================
   Global Resets & Base System Settings
   ========================================================================== */

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

html {
  scroll-smooth: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  /* Elegant ambient background glow directly linked to brand colors */
  background-image: radial-gradient(circle at 90% 10%, var(--color-primary-soft) 0%, transparent 45%);
  background-attachment: fixed;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  /* Eliminates harsh snapping flashes when transitioning dark mode themes */
  transition: background-color var(--transition), color var(--transition);
}

img,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

a,
button,
input,
textarea,
select {
  font: inherit;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition), background-color var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

button {
  border: 0;
  background: none;
  cursor: pointer;
  transition: color var(--transition), background-color var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

/* Core Display Hierarchy rules */
h1, h2, h3, h4 {
  margin: 0;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

h1, h2 {
  font-family: var(--font-display);
}

h1 {
  font-size: var(--text-2xl);
  max-width: 16ch;
}

h2 {
  font-size: var(--text-xl);
  max-width: 24ch;
}

h3 {
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: -0.2px;
}

p {
  margin: 0;
  color: var(--color-text-muted);
  max-width: 65ch;
}

ul[role="list"] {
  list-style: none;
  margin: 0;
  padding: 0;
}

address {
  font-style: normal;
  line-height: 1.5;
}

/* Content Frame Constraints */
.container {
  width: var(--content-width);
  margin-inline: auto;
}

.section {
  padding-block: clamp(var(--space-12), 8vw, var(--space-24));
}

/* Accessibility Focus Targets */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-8);
  z-index: 9999;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
  box-shadow: var(--shadow-md);
}

.skip-link:focus {
  top: var(--space-4);
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
}

/* ==========================================================================
   Navigation Header Architecture
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--color-border);
  background: color-mix(in srgb, var(--color-bg) 80%, transparent);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: background-color var(--transition), border-color var(--transition);
}

.nav-container {
  min-height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.logo-img {
  width: 42px;
  height: 42px;
  object-fit: cover;
  border-radius: 50%;
  border: 1px solid var(--color-border);
}

.logo-text {
    display: flex;
    flex-direction: column;
    font-weight: 900;
    letter-spacing: -0.4px;
    color: var(--color-text);
}

.logo-main {
    font-size: 1.25rem; /* your original size */
    line-height: 1;
}

.logo-sub {
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0;
    color: #666;
    line-height: 1.2;
    margin-top: 2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-muted);
  padding-block: var(--space-2);
}

.nav-links a:hover,
.nav-links a:focus-visible,
.nav-links a.active {
  color: var(--color-primary);
}

.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-shrink: 0;
}

/* UI Interactive Components (Buttons & Micro-interactions) */
.btn, .nav-cta, .cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.7rem 1.4rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  white-space: nowrap;
}

.nav-cta, .btn-primary {
  background: var(--color-primary);
  color: #fff !important;
}

.nav-cta:hover, .btn-primary:hover,
.nav-cta:focus-visible, .btn-primary:focus-visible {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

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

.btn-secondary:hover, .btn-secondary:focus-visible {
  background: var(--color-surface-2);
  border-color: var(--color-primary);
}

.theme-toggle {
  width: 44px;
  height: 44px;
  display: inline-grid;
  place-items: center;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
}

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


/*langue-switcher*/
.language-switcher {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem;
  border: 1px solid var(--color-border, rgba(1, 105, 111, 0.14));
  border-radius: 999px;
  background: var(--color-surface, #ffffff);
}

.language-switcher a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 36px;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--color-text-muted, #64748b);
  transition: 0.25s ease;
}

.language-switcher a:hover {
  background-color: var(--color-primary-soft, rgba(1, 105, 111, 0.08));
  color: var(--color-primary, #01696f);
}

.language-switcher a[aria-current="page"] {
  background-color: var(--color-primary-soft, rgba(1, 105, 111, 0.08));
  color: var(--color-primary, #01696f);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

@media (max-width: 768px) {
  .nav-actions {
    justify-content: flex-start;
  }

  .language-switcher {
    order: -1;
  }
}
/* ==========================================================================
   Hero Block Context
   ========================================================================== */

.hero {
  padding-block: clamp(var(--space-16), 10vw, var(--space-24)) clamp(var(--space-12), 8vw, var(--space-16));
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-6);
}

.hero-eyebrow {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.hero h1 .highlight {
  font-style: italic;
  font-weight: 400;
  color: var(--color-primary);
}

.hero-text {
  font-size: var(--text-lg);
  max-width: 58ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-4);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-8);
  width: 100%;
}

.hero-points li {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.hero-points li::before {
  content: "✓";
  color: var(--color-primary);
  font-weight: 900;
}

/* ==========================================================================
   Content Grid Panels & Semantic Card Structures
   ========================================================================== */

.section-label {
  display: inline-block;
  margin-bottom: var(--space-2);
  color: var(--color-primary);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

.section-title {
  margin-bottom: var(--space-12);
}

.intro-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--space-12);
  align-items: center;
}

.intro-copy {
  display: grid;
  gap: var(--space-4);
}

.intro-copy p:not(.section-label) {
  font-size: 1.15rem;
}

.intro-panel {
  padding: var(--space-8);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.intro-panel-title {
  margin-bottom: var(--space-2);
  font-size: 1.1rem;
  color: var(--color-text);
  font-weight: 700;
}

/* Services Presentation Layout */
.services-preview {
  background-color: var(--color-surface-2);
  transition: background-color var(--transition);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-6);
}

.card {
  display: flex;
  flex-direction: column;
  padding: var(--space-10);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.card-kicker {
  color: var(--color-primary);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.card h3 {
  font-size: 1.4rem;
  margin-bottom: var(--space-3);
}

.card p {
  font-size: 0.95rem;
  margin-bottom: var(--space-6);
  flex-grow: 1;
}

.card-link {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-text);
  width: fit-content;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.card-link::after {
  content: "→";
  transition: transform var(--transition);
}

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

.card:hover .card-link::after {
  transform: translateX(4px);
}

/* Premium Minimalist Call-To-Action Ribbon */
.cta-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
  padding: var(--space-12) var(--space-10);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--color-primary), #00363a);
  color: #fff;
  box-shadow: var(--shadow-lg);
}

.cta-banner-inner h2,
.cta-banner-inner p,
.cta-banner-inner .section-label {
  color: #fff;
}

/* ==========================================================================
   Semantic Footer Engine
   ========================================================================== */

.site-footer {
  padding-top: var(--space-16);
  padding-bottom: var(--space-8);
  background: var(--color-footer);
  color: #fff;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: var(--space-10);
}

.footer-title,
.footer-heading {
  margin-bottom: var(--space-4);
  color: #fff;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  text-transform: none;
  letter-spacing: 0;
}

.site-footer p,
.site-footer a,
.site-footer address {
  color: var(--color-footer-text);
  font-size: 0.9rem;
}

.site-footer a {
  display: block;
  width: fit-content;
  margin-bottom: var(--space-3);
}

.site-footer a:hover {
  color: #fff;
}

.footer-bottom {
  margin-top: var(--space-12);
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  text-align: center;
}

/* ==========================================================================
   Responsive Adaptability Configurations (Media Breakpoints)
   ========================================================================== */

@media (max-width: 1024px) {
  .nav-container {
    height: auto;
    padding-block: var(--space-4);
  }

  /* Structural realignment for clean mobile view without stacking links awkwardly */
  .nav-links {
    display: none; 
  }

  .intro-grid,
  .footer-grid,
  .cta-banner-inner {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
}

@media (max-width: 768px) {
  .container {
    width: min(100% - 2rem, 1200px);
  }

  .hero-content {
    align-items: flex-start;
    text-align: left;
  }

  .hero-actions, .hero-points {
    justify-content: flex-start;
  }

  .hero-points li {
    width: 100%;
  }

  .card {
    padding: var(--space-6);
  }
}

/* System Accessibility Accommodations for Motion Sensitivity */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}
/* =========================================
   MENU MOBILE (SMARTPHONES)
   ========================================= */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
  margin-left: 0.5rem;
}

@media (max-width: 767px) {
  /* Masquer le bouton WhatsApp dans le header sur tout petit écran pour éviter que ça ne soit trop serré */
  .nav-cta {
    display: none !important; 
  }

  /* Afficher le bouton hamburger */
  .mobile-menu-toggle {
    display: block;
  }

  /* Transformer la barre de navigation en menu déroulant */
  .nav-links {
    display: none; /* Masqué par défaut sur mobile */
    flex-direction: column;
    position: absolute;
    top: 5rem; /* S'ouvre juste en dessous du header */
    left: 0;
    width: 100%;
    background-color: var(--bg-surface);
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    gap: 1.5rem;
  }

  /* Classe ajoutée par JavaScript pour ouvrir le menu */
  .nav-links.is-open {
    display: flex;
  }
}