@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;600;700&family=Source+Sans+3:wght@400;600&display=swap');
@import './tokens.css';

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; display: block; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 2px; border-radius: 2px; }

/* ===== Visual Placeholders ===== */
.visual-placeholder {
  display: block;
  width: 100%;
  border-radius: 8px;
  aspect-ratio: 16 / 9;
  background:
    linear-gradient(
      135deg,
      color-mix(in srgb, var(--color-primary) 22%, var(--color-bg)) 0%,
      color-mix(in srgb, var(--color-primary) 10%, var(--color-bg)) 55%,
      color-mix(in srgb, var(--color-secondary) 18%, var(--color-bg)) 100%
    );
}
.visual-placeholder[data-aspect="4:3"]  { aspect-ratio: 4 / 3; }
.visual-placeholder[data-aspect="1:1"]  { aspect-ratio: 1 / 1; }
.visual-placeholder[data-aspect="3:4"]  { aspect-ratio: 3 / 4; }
.visual-placeholder[data-aspect="21:9"] { aspect-ratio: 21 / 9; }

.visual-placeholder[data-tone="secondary"] {
  background:
    linear-gradient(
      135deg,
      color-mix(in srgb, var(--color-secondary) 22%, var(--color-bg)) 0%,
      color-mix(in srgb, var(--color-secondary) 10%, var(--color-bg)) 55%,
      color-mix(in srgb, var(--color-primary) 16%, var(--color-bg)) 100%
    );
}
.visual-placeholder[data-tone="accent"] {
  background:
    linear-gradient(
      135deg,
      color-mix(in srgb, var(--color-accent, var(--color-primary)) 22%, var(--color-bg)) 0%,
      color-mix(in srgb, var(--color-primary) 12%, var(--color-bg)) 60%,
      color-mix(in srgb, var(--color-secondary) 16%, var(--color-bg)) 100%
    );
}
.visual-placeholder[data-tone="muted"] {
  background: color-mix(in srgb, var(--color-text) 8%, var(--color-bg));
}

/* ===== Typography ===== */
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.2; color: var(--color-primary); }
h1 { font-size: clamp(1.6rem, 5vw, 2.5rem); font-weight: 700; margin-bottom: 1rem; }
h2 { font-size: clamp(1.3rem, 4vw, 1.9rem); font-weight: 700; margin-bottom: 0.75rem; }
h3 { font-size: clamp(1.1rem, 3vw, 1.35rem); font-weight: 600; margin-bottom: 0.5rem; }
p  { margin-bottom: 1rem; }

/* ===== Layout ===== */
.container { width: 100%; max-width: 1100px; margin: 0 auto; padding: 0 1.25rem; }
.section { padding: 3rem 0; }
.section--alt { background: color-mix(in srgb, var(--color-primary) 4%, var(--color-bg)); }

/* ===== Header / Nav ===== */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 2px solid color-mix(in srgb, var(--color-primary) 15%, var(--color-bg));
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.25rem;
  max-width: 1100px;
  margin: 0 auto;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

.nav-logo img { height: 48px; width: auto; }

.nav-links {
  display: none;
  list-style: none;
  gap: 1.75rem;
  align-items: center;
}

.nav-links a {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
  transition: color 0.2s;
}

.nav-links a:hover, .nav-links a[aria-current="page"] {
  color: var(--color-primary);
  text-decoration: none;
}

.nav-cta {
  background: var(--color-accent);
  color: #fff !important;
  padding: 0.5rem 1.1rem;
  border-radius: 6px;
  transition: background 0.2s;
}

.nav-cta:hover { background: #0a7a70 !important; }

/* Hamburger */
.nav-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
  display: flex;
  flex-direction: column;
  gap: 5px;
  aria-label: "Menu";
}

.nav-toggle span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: transform 0.25s, opacity 0.25s;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu open */
.nav-links.is-open {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-bg);
  border-bottom: 2px solid color-mix(in srgb, var(--color-primary) 15%, var(--color-bg));
  padding: 1.25rem;
  gap: 1.1rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

@media (min-width: 768px) {
  .nav-toggle { display: none; }
  .nav-links { display: flex; }
}

/* ===== Hero ===== */
.hero { padding: 3rem 0 2.5rem; }
.hero-content { margin-bottom: 2rem; }
.hero-content h1 { color: var(--color-primary); }
.hero-content .lead {
  font-size: 1.1rem;
  color: color-mix(in srgb, var(--color-text) 85%, var(--color-bg));
  margin-bottom: 1.5rem;
  max-width: 600px;
}

.hero-citation {
  font-style: italic;
  color: var(--color-accent);
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: 1.5rem;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  border-radius: 8px;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: background 0.2s, box-shadow 0.2s;
  text-decoration: none;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 2px 8px rgba(30,58,138,0.25);
}

.btn-primary:hover {
  background: #162e70;
  text-decoration: none;
  color: #fff;
}

.btn-accent {
  background: var(--color-accent);
  color: #fff;
}

.btn-accent:hover {
  background: #0a7a70;
  text-decoration: none;
  color: #fff;
}

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

.btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
  text-decoration: none;
}

.btn-group { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 1.5rem; }

/* ===== USP Cards ===== */
.usp-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: 2rem;
}

.usp-card {
  background: var(--color-bg);
  border: 1px solid color-mix(in srgb, var(--color-secondary) 40%, var(--color-bg));
  border-radius: 10px;
  padding: 1.5rem;
  border-top: 3px solid var(--color-accent);
}

.usp-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
  display: block;
}

.usp-card h3 { color: var(--color-primary); margin-bottom: 0.5rem; }

/* ===== Service Cards ===== */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2rem;
}

.service-card {
  background: var(--color-bg);
  border: 1px solid color-mix(in srgb, var(--color-secondary) 35%, var(--color-bg));
  border-radius: 10px;
  overflow: hidden;
}

.service-card-body { padding: 1.5rem; }
.service-card h3 { margin-bottom: 0.75rem; }
.service-card ul { padding-left: 1.25rem; margin-bottom: 0; }
.service-card li { margin-bottom: 0.4rem; }

/* ===== CTA Band ===== */
.cta-band {
  background: var(--color-primary);
  color: #fff;
  text-align: center;
  padding: 3rem 1.25rem;
}

.cta-band h2 { color: #fff; margin-bottom: 0.75rem; }
.cta-band p  { color: rgba(255,255,255,0.88); margin-bottom: 1.5rem; font-size: 1.1rem; }
.cta-phone {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: #fff;
  display: inline-block;
  margin-bottom: 1.25rem;
}

/* ===== About ===== */
.about-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 2rem;
}

.values-list { list-style: none; padding: 0; }
.values-list li {
  padding: 0.75rem 0;
  border-bottom: 1px solid color-mix(in srgb, var(--color-secondary) 30%, var(--color-bg));
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
}
.values-list li:last-child { border-bottom: none; }
.value-icon { color: var(--color-accent); font-size: 1.2rem; flex-shrink: 0; margin-top: 0.1rem; }

/* ===== Contact ===== */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 2rem;
}

.contact-info-card {
  background: color-mix(in srgb, var(--color-primary) 5%, var(--color-bg));
  border-radius: 10px;
  padding: 1.75rem;
  border-left: 4px solid var(--color-accent);
}

.contact-info-card p { margin-bottom: 0.65rem; }
.contact-info-card strong { color: var(--color-primary); }

.contact-phone-link {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-primary);
  display: inline-block;
  margin: 0.5rem 0;
}

/* Form */
.contact-form { display: flex; flex-direction: column; gap: 1.1rem; }

.form-group { display: flex; flex-direction: column; gap: 0.4rem; }

label {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary);
}

input, textarea, select {
  padding: 0.75rem 1rem;
  border: 1.5px solid color-mix(in srgb, var(--color-secondary) 50%, var(--color-bg));
  border-radius: 6px;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text);
  background: var(--color-bg);
  transition: border-color 0.2s, box-shadow 0.2s;
  width: 100%;
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-accent) 20%, transparent);
}

textarea { min-height: 130px; resize: vertical; }

/* Map */
.map-wrapper {
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--color-secondary) 35%, var(--color-bg));
  margin-top: 2rem;
}

.map-wrapper iframe {
  width: 100%;
  height: 320px;
  border: none;
  display: block;
}

/* ===== Mentions légales ===== */
.mentions { font-size: 0.88rem; color: color-mix(in srgb, var(--color-text) 70%, var(--color-bg)); margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid color-mix(in srgb, var(--color-secondary) 30%, var(--color-bg)); }

/* ===== Footer ===== */
footer {
  background: var(--color-primary);
  color: rgba(255,255,255,0.85);
  padding: 2.5rem 0 1.5rem;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.25rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

.footer-brand { margin-bottom: 0.5rem; }
.footer-brand-name {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  display: block;
}
.footer-tagline { font-size: 0.9rem; color: rgba(255,255,255,0.7); }

.footer-nav h4, .footer-contact h4 {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.55);
  margin-bottom: 0.75rem;
}

.footer-nav ul { list-style: none; }
.footer-nav li { margin-bottom: 0.45rem; }
.footer-nav a { color: rgba(255,255,255,0.85); font-size: 0.95rem; }
.footer-nav a:hover { color: #fff; }

.footer-contact p { font-size: 0.95rem; margin-bottom: 0.45rem; }
.footer-contact a { color: rgba(255,255,255,0.85); }
.footer-contact a:hover { color: #fff; }

.footer-bottom {
  max-width: 1100px;
  margin: 1.75rem auto 0;
  padding: 1.25rem 1.25rem 0;
  border-top: 1px solid rgba(255,255,255,0.12);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: space-between;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.55);
}

.footer-bottom a { color: rgba(255,255,255,0.55); }
.footer-bottom a:hover { color: rgba(255,255,255,0.85); }

/* ===== Skip link ===== */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--color-primary);
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: 0 0 6px 6px;
  font-weight: 700;
  z-index: 9999;
  transition: top 0.2s;
}
.skip-link:focus { top: 0; }

/* ===== Responsive ===== */
@media (min-width: 640px) {
  .usp-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {
  .section { padding: 4.5rem 0; }
  .hero { padding: 4.5rem 0 3rem; }
  .about-layout { grid-template-columns: 1fr 1fr; align-items: start; }
  .contact-layout { grid-template-columns: 1fr 1fr; align-items: start; }
  .footer-inner { grid-template-columns: 2fr 1fr 1fr; }
  .map-wrapper iframe { height: 400px; }
}

@media (min-width: 1024px) {
  .usp-grid { grid-template-columns: repeat(3, 1fr); }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ===== Motion pass (WEB-5168) — apaisant, GPU-friendly ===== */
@media (prefers-reduced-motion: no-preference) {

  /* Hero — entrée en cascade au chargement */
  .hero-content > * {
    opacity: 0;
    transform: translateY(14px);
    animation: hero-in 700ms cubic-bezier(0.22, 0.61, 0.36, 1) forwards;
  }
  .hero-content > *:nth-child(1) { animation-delay: 80ms; }
  .hero-content > *:nth-child(2) { animation-delay: 220ms; }
  .hero-content > *:nth-child(3) { animation-delay: 340ms; }
  .hero-content > *:nth-child(4) { animation-delay: 460ms; }
  @keyframes hero-in { to { opacity: 1; transform: translateY(0); } }

  .hero .visual-placeholder {
    opacity: 0;
    transform: scale(0.985);
    animation: hero-visual-in 800ms cubic-bezier(0.22, 0.61, 0.36, 1) 300ms forwards;
  }
  @keyframes hero-visual-in { to { opacity: 1; transform: scale(1); } }

  /* Scroll reveal — CSS scroll-driven quand supporté (Chromium 115+) */
  @supports (animation-timeline: view()) {
    .usp-card,
    .service-card,
    .contact-info-card,
    .map-wrapper,
    .section:not(.hero) .visual-placeholder {
      animation: reveal-in linear both;
      animation-timeline: view();
      animation-range: entry 0% entry 55%;
    }
    @keyframes reveal-in {
      from { opacity: 0; transform: translateY(22px); }
      to   { opacity: 1; transform: translateY(0); }
    }
  }

  /* Fallback IntersectionObserver — activé via [data-reveal] par main.js */
  [data-reveal] {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity 700ms cubic-bezier(0.22, 0.61, 0.36, 1),
                transform 700ms cubic-bezier(0.22, 0.61, 0.36, 1);
    will-change: opacity, transform;
  }
  [data-reveal].is-revealed { opacity: 1; transform: translateY(0); }

  /* Cartes — lift discret au survol */
  .usp-card,
  .service-card,
  .contact-info-card {
    transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
  }
  .usp-card:hover,
  .service-card:hover,
  .contact-info-card:hover {
    transform: translateY(-3px);
    border-color: color-mix(in srgb, var(--color-accent) 55%, var(--color-bg));
    box-shadow: 0 10px 24px -14px color-mix(in srgb, var(--color-primary) 45%, transparent);
  }

  /* Boutons — lift + ombre affinée */
  .btn { transition: background 200ms ease, color 200ms ease, transform 200ms ease, box-shadow 220ms ease; }
  .btn:hover { transform: translateY(-2px); }
  .btn-primary:hover { box-shadow: 0 6px 18px -4px rgba(30, 58, 138, 0.42); }
  .btn-accent:hover  { box-shadow: 0 6px 18px -4px color-mix(in srgb, var(--color-accent) 55%, transparent); }
  .btn-outline:hover { box-shadow: 0 6px 18px -4px rgba(30, 58, 138, 0.22); }
  .btn:active { transform: translateY(0); }

  /* Nav — soulignement animé (background-size 0 → 100%) */
  .nav-links a:not(.nav-cta) {
    background-image: linear-gradient(currentColor, currentColor);
    background-repeat: no-repeat;
    background-position: 0 100%;
    background-size: 0% 2px;
    transition: color 200ms ease, background-size 260ms cubic-bezier(0.22, 0.61, 0.36, 1);
    padding-bottom: 2px;
  }
  .nav-links a:not(.nav-cta):hover,
  .nav-links a:not(.nav-cta):focus-visible,
  .nav-links a[aria-current="page"]:not(.nav-cta) {
    text-decoration: none;
    background-size: 100% 2px;
  }

  /* Placeholder visuel — lift léger + dégradé qui glisse (sans CLS, aspect-ratio préservé) */
  .visual-placeholder {
    background-size: 200% 200%;
    background-position: 0% 0%;
    transition: transform 320ms cubic-bezier(0.22, 0.61, 0.36, 1),
                background-position 500ms ease;
  }
  .visual-placeholder:hover {
    transform: translateY(-2px);
    background-position: 100% 100%;
  }

  /* Nav CTA — halo lumineux discret au survol */
  .nav-cta { position: relative; overflow: hidden; }
  .nav-cta::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,0.28) 50%, transparent 70%);
    transform: translateX(-100%);
    transition: transform 600ms ease;
    pointer-events: none;
  }
  .nav-cta:hover::after,
  .nav-cta:focus-visible::after { transform: translateX(100%); }

  /* Focus-visible affiné (offset animé) */
  a:focus-visible, button:focus-visible, .btn:focus-visible {
    transition: outline-offset 160ms ease, box-shadow 160ms ease;
    outline-offset: 4px;
  }
}

/* ===== Reduced motion — kill switch global ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .hero-content > *,
  .hero .visual-placeholder,
  [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }
}