/* ASD Agence IA — feuille de style partagée. Palette modifiable ici uniquement. */

:root {
  /* Palette — bleu nuit + accent chaleureux */
  --color-navy-900: #0b1b33;
  --color-navy-800: #112b4d;
  --color-navy-700: #1c3e68;
  --color-accent-500: #e8903f;
  --color-accent-600: #d87a24;
  --color-accent-050: #fdf1e4;

  --color-bg: #ffffff;
  --color-bg-alt: #f4f6fa;
  --color-text: #1a2330;
  --color-text-light: #566072;
  --color-text-invert: #f3f6fb;
  --color-border: #e1e6ed;

  --font-base: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;

  --radius: 10px;
  --radius-lg: 16px;
  --container-width: 1100px;

  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1.25rem;
  --space-4: 2rem;
  --space-5: 3.5rem;

  --shadow-card: 0 10px 30px -15px rgba(11, 27, 51, 0.35);
}

/* Reset minimal */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body, h1, h2, h3, p, ul, figure { margin: 0; }
img { max-width: 100%; display: block; }
ul { padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
[hidden] { display: none !important; }

:focus-visible {
  outline: 3px solid var(--color-accent-600);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  top: -3rem;
  left: var(--space-2);
  z-index: 100;
  background: var(--color-navy-900);
  color: var(--color-text-invert);
  padding: 0.6rem 1rem;
  border-radius: var(--radius);
  font-weight: 600;
  transition: top 0.15s ease;
}
.skip-link:focus { top: var(--space-2); }

body {
  font-family: var(--font-base);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

h1, h2, h3 { color: var(--color-navy-900); line-height: 1.25; }
h1 { font-size: 1.9rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.15rem; }

.lede {
  font-size: 1.05rem;
  color: var(--color-text-light);
}

.body-text {
  font-size: 1.05rem;
  color: var(--color-text);
  max-width: 60ch;
}
.body-text + .body-text { margin-top: var(--space-3); }

/* Mise en page à deux colonnes (à-propos) */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}
@media (min-width: 860px) {
  .about-grid { grid-template-columns: 1.3fr 0.7fr; align-items: start; }
}
.profile-media {
  max-width: 22rem;
  margin: 0 auto;
}
@media (min-width: 860px) {
  .profile-media { margin: 0; }
}
.profile-photo {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}
.profile-illustration {
  width: 100%;
  height: auto;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* Boutons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn-primary {
  background: var(--color-accent-500);
  color: var(--color-navy-900);
}
.btn-primary:hover { background: var(--color-accent-600); }
.btn-secondary {
  background: transparent;
  color: var(--color-navy-800);
  border: 1px solid var(--color-border);
}
.btn-secondary:hover { border-color: var(--color-navy-700); }

/* Boutons sur fond sombre (ex. hero) : variante claire */
.hero .btn-secondary {
  color: var(--color-text-invert);
  border-color: rgba(243, 246, 251, 0.5);
}
.hero .btn-secondary:hover {
  background: rgba(243, 246, 251, 0.1);
  border-color: var(--color-text-invert);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.cta-row-center { justify-content: center; margin-top: var(--space-4); }

/* En-tête */
.site-header {
  background: var(--color-navy-900);
  color: var(--color-text-invert);
  position: sticky;
  top: 0;
  z-index: 20;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-2);
  padding-bottom: var(--space-2);
  gap: var(--space-2);
}
.brand img {
  height: 28px;
}
.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--color-text-invert);
  border-radius: 2px;
}
.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); }

.site-nav {
  position: absolute;
  inset: 100% 0 auto 0;
  background: var(--color-navy-800);
  padding: var(--space-2) var(--space-3) var(--space-3);
  display: none;
}
.site-nav.is-open { display: block; }
.site-nav ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.site-nav a {
  display: block;
  padding: var(--space-1) 0;
  font-weight: 500;
}
.site-nav a[aria-current="page"] { color: var(--color-accent-500); }

@media (min-width: 760px) {
  .nav-toggle { display: none; }
  .site-nav {
    position: static;
    background: none;
    padding: 0;
    display: block;
  }
  .site-nav ul {
    flex-direction: row;
    gap: var(--space-4);
  }
  .site-nav a { padding: 0; }
}

/* Héro */
.hero {
  background: linear-gradient(180deg, var(--color-navy-900) 0%, var(--color-navy-800) 100%);
  color: var(--color-text-invert);
  padding: var(--space-5) 0 var(--space-4);
}
.hero h1 { color: var(--color-text-invert); font-size: 2rem; }
.hero .lede { color: #c7d3e6; margin-top: var(--space-2); max-width: 40ch; }
.hero .cta-row { margin-top: var(--space-4); }

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  gap: var(--space-4);
}
.hero-illustration {
  display: flex;
  justify-content: center;
  margin-top: var(--space-3);
}
.hero-illustration svg { width: 170px; height: auto; }
@media (min-width: 860px) {
  .hero-grid { grid-template-columns: 1.15fr 0.85fr; gap: var(--space-5); }
  .hero-illustration { justify-content: flex-end; margin-top: 0; }
  .hero-illustration svg { width: 230px; }
}
.phone-bubble-text {
  font-family: var(--font-base);
  font-size: 13px;
  font-weight: 600;
}
.phone-bubble-text-light { fill: var(--color-text-invert); }
.phone-bubble-text-dark { fill: var(--color-navy-900); }

/* Sections génériques */
section { padding: var(--space-5) 0; }
.section-alt { background: var(--color-bg-alt); }
.section-head { max-width: 42ch; margin-bottom: var(--space-4); }

/* Cartes services */
.card-grid {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 1fr;
}
@media (min-width: 700px) {
  .card-grid { grid-template-columns: repeat(3, 1fr); }
}
.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  box-shadow: var(--shadow-card);
}
.card h3 { margin-bottom: var(--space-1); }
.card p { color: var(--color-text-light); font-size: 0.95rem; }

/* Et aussi (services secondaires) */
.also-block { margin-top: var(--space-4); }
.also-label {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-light);
  margin-bottom: var(--space-2);
}
.also-grid {
  display: grid;
  gap: var(--space-2);
}
@media (min-width: 700px) {
  .also-grid { grid-template-columns: repeat(2, 1fr); }
}
.also-card {
  display: block;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg-alt);
  transition: border-color 0.15s ease, background 0.15s ease;
}
.also-card:hover { border-color: var(--color-navy-700); background: var(--color-bg); }
.also-card h3 { font-size: 1rem; margin-bottom: 0.2rem; }
.also-card p { color: var(--color-text-light); font-size: 0.9rem; }

/* Bandeau démo */
.demo-banner {
  background: var(--color-accent-050);
  border: 1px solid var(--color-accent-500);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}
.demo-banner p { font-weight: 600; color: var(--color-navy-900); }

/* Pourquoi */
.reasons-list {
  display: grid;
  gap: var(--space-3);
}
.reasons-list li {
  padding-left: var(--space-3);
  border-left: 3px solid var(--color-accent-500);
}
.reasons-list strong { display: block; color: var(--color-navy-900); margin-bottom: 0.2rem; }
.reasons-list span { color: var(--color-text-light); font-size: 0.95rem; }

/* Preuve */
.proof {
  background: var(--color-navy-900);
  color: var(--color-text-invert);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  font-size: 1.05rem;
}
.proof::before { content: "\201C"; color: var(--color-accent-500); font-size: 2rem; display: block; line-height: 0.6; }

/* Autres activités */
.activities-list {
  display: grid;
  gap: var(--space-2);
}
.activities-list li {
  padding: var(--space-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}
.activities-list a {
  font-weight: 600;
  color: var(--color-navy-800);
}
.activities-list li[hidden] { display: none; }

/* Services : liste avec un service mis en avant */
.service-list {
  display: grid;
  gap: var(--space-3);
}
.service {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
}
.service-highlight {
  border-color: var(--color-accent-500);
  box-shadow: var(--shadow-card);
}
.service-tag {
  display: inline-block;
  background: var(--color-navy-900);
  color: var(--color-accent-500);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  margin-bottom: var(--space-1);
}
.service-head {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: var(--space-1);
}
.service-icon { width: 22px; height: 22px; flex-shrink: 0; color: var(--color-navy-800); }
.service-highlight .service-icon { color: var(--color-accent-600); }
.service-head h3 { margin-bottom: 0; }
.service h3 { margin-bottom: var(--space-1); }
.service ul { margin-top: var(--space-2); display: grid; gap: 0.4rem; }
.service ul li {
  padding-left: var(--space-2);
  border-left: 2px solid var(--color-border);
  color: var(--color-text-light);
  font-size: 0.95rem;
}

/* Contact */
.contact-list {
  display: grid;
  gap: var(--space-2);
  max-width: 28rem;
}
.contact-list li {
  display: flex;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}
.contact-list li[hidden] { display: none; }
.contact-list .contact-label { color: var(--color-text-light); }
.contact-list .contact-value { font-weight: 600; color: var(--color-navy-800); }
.contact-list a.contact-value:hover { text-decoration: underline; }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  align-items: start;
}
@media (min-width: 860px) {
  .contact-grid { grid-template-columns: 1fr 1fr; }
}
.process-block h2 { margin-bottom: var(--space-2); }
.process-illustration { margin-bottom: var(--space-3); }
.process-illustration svg { width: 120px; height: auto; display: block; }

/* Approche (liste d'étapes) */
.steps-list {
  display: grid;
  gap: var(--space-2);
  counter-reset: step;
}
.steps-list li {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
}
.steps-list li::before {
  counter-increment: step;
  content: counter(step);
  flex-shrink: 0;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  background: var(--color-accent-500);
  color: var(--color-navy-900);
  font-weight: 700;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Mentions légales */
.legal-block { margin-bottom: var(--space-4); }
.legal-block h2 { margin-bottom: var(--space-1); }
.legal-block p { color: var(--color-text-light); }
.legal-block a { color: var(--color-navy-800); font-weight: 600; text-decoration: underline; }

/* Démo de conversation (ecoles.html) */
.chat-demo {
  max-width: 32rem;
  margin: 0 auto;
}
.chat-window {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.chat-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--color-navy-900);
  color: var(--color-text-invert);
}
.chat-avatar {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-accent-500);
  color: var(--color-navy-900);
  font-weight: 700;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.chat-header-name { font-weight: 600; font-size: 0.95rem; }
.chat-header-status { font-size: 0.8rem; color: #c7d3e6; }
.chat-messages {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3);
  min-height: 18rem;
  max-height: 26rem;
  overflow-y: auto;
}
.chat-bubble {
  max-width: 80%;
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius-lg);
  font-size: 0.95rem;
  line-height: 1.4;
}
.chat-bubble p { margin: 0; }
.chat-bubble-user {
  align-self: flex-end;
  background: var(--color-navy-800);
  color: var(--color-text-invert);
  border-bottom-right-radius: 4px;
}
.chat-bubble-assistant {
  align-self: flex-start;
  background: var(--color-bg);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-bottom-left-radius: 4px;
}
.chat-time {
  display: block;
  margin-top: 0.3rem;
  font-size: 0.7rem;
  opacity: 0.7;
}
@media (prefers-reduced-motion: no-preference) {
  .chat-bubble:not(.chat-typing) {
    animation: chat-pop 0.2s ease;
  }
}
@keyframes chat-pop {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}
.chat-typing { display: flex; align-items: center; gap: 4px; padding: 0.75rem 0.9rem; }
.chat-typing span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-text-light);
  display: inline-block;
}
@media (prefers-reduced-motion: no-preference) {
  .chat-typing span { animation: chat-bounce 1s infinite ease-in-out; }
  .chat-typing span:nth-child(2) { animation-delay: 0.15s; }
  .chat-typing span:nth-child(3) { animation-delay: 0.3s; }
}
@keyframes chat-bounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.5; }
  30% { transform: translateY(-4px); opacity: 1; }
}
.chat-scenarios {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-1);
  margin-bottom: var(--space-2);
}
.chat-scenario-btn {
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-navy-800);
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.chat-scenario-btn:hover { border-color: var(--color-navy-700); }
.chat-scenario-btn.is-active {
  background: var(--color-navy-900);
  color: var(--color-text-invert);
  border-color: var(--color-navy-900);
}
.chat-controls {
  display: flex;
  justify-content: center;
  margin-top: var(--space-3);
}
.demo-disclaimer {
  text-align: center;
  color: var(--color-text-light);
  font-size: 0.85rem;
  margin-top: var(--space-2);
}

/* Pied de page */
.site-footer {
  background: var(--color-navy-900);
  color: var(--color-text-invert);
  padding: var(--space-4) 0 var(--space-3);
}
.footer-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}
@media (min-width: 700px) {
  .footer-grid { grid-template-columns: 2fr 1fr 1fr; }
}
.footer-grid img { height: 24px; margin-bottom: var(--space-2); }
.footer-grid .tagline { color: #c7d3e6; font-size: 0.9rem; max-width: 32ch; }
.footer-nav a, .footer-contact a, .footer-contact span {
  display: block;
  padding: 0.3rem 0;
  color: #c7d3e6;
  font-size: 0.95rem;
}
.footer-nav a[hidden], .footer-contact a[hidden], .footer-contact span[hidden] { display: none; }
.footer-heading {
  color: var(--color-text-invert);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-1);
}
.footer-bottom {
  margin-top: var(--space-4);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-navy-700);
  font-size: 0.85rem;
  color: #9fb0c9;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: space-between;
}
.footer-bottom a { color: #c7d3e6; text-decoration: underline; }
.footer-bottom a:hover { color: var(--color-text-invert); }