/* ============================================================
   SentimentAI - Feuille de style
   Direction : neo-minimalisme, base tres sombre, un seul accent
   ============================================================ */

:root {
  /* Fonds, du plus profond au plus clair */
  --bg:           #0a0a0b;
  --surface:      #121214;
  --surface-2:    #1a1a1d;
  --border:       #26262b;
  --border-light: #34343a;

  /* Texte */
  --text:         #f4f4f5;
  --text-muted:   #a1a1aa;
  --text-dim:     #6b6b73;

  /* Accent unique */
  --accent:       #ccff00;
  --accent-dim:   rgba(204, 255, 0, 0.12);

  /* Semantique : uniquement pour positif / negatif */
  --positive:     #ccff00;
  --negative:     #ff5c38;

  /* Typographie */
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, monospace;

  --radius:       4px;
  --transition:   0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width:    1100px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Grille de fond discrete, donne de la profondeur sans surcharger */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.25;
  pointer-events: none;
  z-index: 0;
}

.main-content {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.accent { color: var(--accent); }

/* Les particules du design precedent sont desactivees :
   la grille suffit, et la page reste plus lisible. */
.particles, .particle, .hero-glow { display: none; }

/* ---------- Navigation ---------- */

.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 20px 24px;
  background: rgba(10, 10, 11, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  color: inherit;
}

.nav-logo {
  display: block;
  width: 34px;
  height: 34px;
  border-radius: var(--radius);
  transition: transform var(--transition);
}
.nav-brand:hover .nav-logo { transform: rotate(-6deg) scale(1.05); }

.nav-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 16px;
  letter-spacing: -0.02em;
}

.nav-links { display: flex; gap: 8px; }

.nav-link {
  padding: 7px 14px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition: var(--transition);
}
.nav-link:hover { color: var(--text); border-color: var(--border-light); }
.nav-link.active { color: var(--accent); border-color: var(--accent); }

/* ---------- Hero ---------- */

.hero {
  padding: 100px 0 72px;
  border-bottom: 1px solid var(--border);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 11vw, 7rem);
  font-weight: 700;
  line-height: 0.92;
  letter-spacing: -0.04em;
  text-transform: uppercase;
  margin-bottom: 28px;
}
.hero-title .accent { display: block; }

.hero-sub {
  max-width: 46ch;
  color: var(--text-muted);
  font-size: 15px;
  margin-bottom: 32px;
}

.badge-row { display: flex; flex-wrap: wrap; gap: 8px; }

.badge {
  padding: 5px 11px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ---------- Sections et cartes ---------- */

.analyzer-section { padding: 72px 0; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}

.card-header {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 22px;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
}
.status-dot.pulse { animation: pulse 2.4s ease-in-out infinite; }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.35; }
}

.card-label {
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.card-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
}

/* ---------- Formulaire ---------- */

.form-group { margin-bottom: 26px; }

.form-label {
  display: block;
  margin-bottom: 9px;
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.input-area {
  width: 100%;
  padding: 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
  resize: vertical;
  min-height: 128px;
  transition: var(--transition);
}
.input-area:focus { outline: none; border-color: var(--accent); }
.input-area::placeholder { color: var(--text-dim); }

.char-count {
  margin-top: 7px;
  text-align: right;
  font-size: 11px;
  color: var(--text-dim);
}

/* ---------- Choix du modele ---------- */

.model-selector {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.model-btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 5px;
  padding: 15px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  text-align: left;
  cursor: pointer;
  transition: var(--transition);
}
.model-btn:hover { border-color: var(--border-light); color: var(--text); }
.model-btn.active {
  border-color: var(--accent);
  color: var(--text);
  background: var(--accent-dim);
}

.model-icon {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  color: var(--accent);
}
.model-speed {
  font-size: 10px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* Modele absent du serveur */
.model-btn.unavailable { opacity: 0.3; cursor: not-allowed; }
.model-btn.unavailable:hover {
  border-color: var(--border);
  color: var(--text-muted);
  background: var(--bg);
}

/* ---------- Bouton principal ---------- */

.btn-analyze {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 16px;
  background: var(--accent);
  border: none;
  border-radius: var(--radius);
  color: var(--bg);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: var(--transition);
}
.btn-analyze:hover { filter: brightness(1.12); }
.btn-analyze:active { transform: translateY(1px); }
.btn-analyze.loading { opacity: 0.6; cursor: wait; }

.btn-icon { font-size: 16px; }

/* ---------- Resultat ---------- */

.result-divider {
  height: 1px;
  background: var(--border);
  margin: 30px 0 22px;
}

.result-header {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: space-between;
  margin-bottom: 20px;
}

.result-label {
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.result-model { font-size: 12px; color: var(--accent); }

.result-main {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 28px;
  align-items: center;
}

.sentiment-display { display: flex; align-items: center; gap: 14px; }
.sentiment-icon { font-size: 36px; line-height: 1; }

.sentiment-text {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 5vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}
.sentiment-text.positive { color: var(--positive); }
.sentiment-text.negative { color: var(--negative); }

.confidence-label {
  display: block;
  margin-bottom: 7px;
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.confidence-bar {
  height: 5px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
}
.confidence-fill {
  width: 0;
  height: 100%;
  background: var(--accent);
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}
.confidence-value {
  display: block;
  margin-top: 7px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 600;
}

.result-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 22px;
}

/* ---------- Erreur ---------- */

.error-container {
  display: flex;
  align-items: center;
  gap: 11px;
  margin-top: 22px;
  padding: 14px 16px;
  background: rgba(255, 92, 56, 0.08);
  border: 1px solid rgba(255, 92, 56, 0.3);
  border-radius: var(--radius);
  color: var(--negative);
  font-size: 13px;
}

.error-icon {
  display: grid;
  place-items: center;
  flex-shrink: 0;
  width: 19px;
  height: 19px;
  background: var(--negative);
  color: var(--bg);
  border-radius: 50%;
  font-weight: 700;
  font-size: 12px;
}

/* ---------- Exemples ---------- */

.example-section { margin-top: 56px; }

.examples-title {
  margin-bottom: 18px;
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 400;
}

.examples-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
}

.example-card {
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
}
.example-card:hover { border-color: var(--border-light); transform: translateY(-2px); }
.example-card p {
  margin-top: 9px;
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.55;
}

.ex-tag {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.ex-tag.pos { color: var(--positive); }
.ex-tag.neg { color: var(--negative); }

/* ---------- Statistiques ---------- */

.stats-section {
  padding: 56px 0 88px;
  border-top: 1px solid var(--border);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.stat-card {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 26px 20px;
  background: var(--surface);
}

.stat-value {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
}

.stat-label {
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ---------- Page Projet ---------- */

.about-section { padding: 72px 0 88px; }

.about-title {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 8vw, 4rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  text-transform: uppercase;
  margin-bottom: 40px;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 12px;
  margin-bottom: 40px;
}

.about-card {
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.about-card h3 {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 11px;
}
.about-card p, .about-card li {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.65;
}
.about-card ul { list-style: none; }
.about-card li { padding-left: 15px; position: relative; }
.about-card li::before {
  content: "-";
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* ---------- Pied de page ---------- */

.footer {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 32px 24px 40px;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 12px;
  color: var(--text-dim);
}
.footer p + p { margin-top: 9px; }

.portfolio-link {
  color: var(--text-muted);
  text-decoration: none;
  border-bottom: 1px solid var(--border-light);
  transition: var(--transition);
}
.portfolio-link:hover { color: var(--accent); border-color: var(--accent); }

/* ---------- Responsive ---------- */

@media (max-width: 720px) {
  .navbar { padding: 15px 18px; }
  .nav-title { font-size: 14px; }
  .main-content, .footer { padding-left: 18px; padding-right: 18px; }

  .hero { padding: 64px 0 48px; }
  .analyzer-section { padding: 48px 0; }

  .card { padding: 22px 18px; }

  /* Les modeles passent en colonne : bien plus lisible sur mobile */
  .model-selector { grid-template-columns: 1fr; }
  .model-btn { flex-direction: row; align-items: center; gap: 11px; }
  .model-speed { margin-left: auto; }

  /* Le resultat s'empile au lieu de se serrer */
  .result-main { grid-template-columns: 1fr; gap: 22px; }
}

@media (max-width: 400px) {
  body::before { background-size: 40px 40px; }
  .card { padding: 18px 14px; }
}

/* Respecte le reglage systeme de reduction des animations */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}