/* ═══════════════════════════════════════════════════════════
   NYXIA DESIGN SYSTEM — v1.0
   ──────────────────────────────────────────────────────────
   Fichier CSS unifié pour harmoniser tout le projet NyXia IA.
   
   Utilisation :
   <link rel="stylesheet" href="/css/nyxia.css">
   
   Inclure APRÈS les Google Fonts :
   <link href="https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Space+Grotesk:wght@400;500;600;700&family=Cormorant+Garamond:ital,wght@0,400;0,600;1,400&display=swap" rel="stylesheet">
═══════════════════════════════════════════════════════════ */


/* ══════════════════════════════════════
   1. VARIABLES — Tokens de design
══════════════════════════════════════ */
:root {
  /* Backgrounds */
  --bg1: #0A1628;
  --bg2: #0F1C3F;
  --bg3: #1A2554;
  --bg4: #2A3A6E;
  --sidebar: #080f22;

  /* Surfaces (cartes, panels) */
  --surface: #13152A;
  --surface2: #1A1D35;
  --surface3: #2B245C;

  /* Primaire (violet NyXia) */
  --p: #7B5CFF;
  --p-rgb: 123,92,255;
  --p2: #5A6CFF;
  --p3: #4FA3FF;
  --p-light: #9B7BFF;
  --p-soft: #a78bfa;

  /* Accents */
  --green: #00E676;
  --gold: #F4C842;
  --red: #FF4B6E;
  --red-soft: #ff8fab;
  --red-light: #ff6b6b;

  /* Texte */
  --t: #FFFFFF;
  --t2: #D6D9F0;
  --t3: #8891B8;
  --t4: #4a5278;
  --t-dim: #6B7094;
  --t-body: #C8CCF0;

  /* Bordures */
  --border: rgba(123,92,255,0.15);
  --border-hover: rgba(123,92,255,0.3);
  --border-active: rgba(123,92,255,0.5);

  /* Glow */
  --glow: rgba(123,92,255,0.4);
  --glow-strong: rgba(123,92,255,0.6);

  /* Rayons */
  --r: 14px;
  --r-sm: 10px;
  --r-lg: 20px;
  --r-full: 50px;

  /* Transitions */
  --ease: 0.2s ease;
  --ease-slow: 0.3s ease;
}


/* ══════════════════════════════════════
   2. RESET & BASE
══════════════════════════════════════ */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg2);
  color: var(--t2);
  font-family: 'Outfit', sans-serif;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}


/* ══════════════════════════════════════
   3. TYPOGRAPHIE
══════════════════════════════════════ */

/* Famille principale : Outfit (body, UI) */
/* Famille titre élégant : Cormorant Garamond (titres premium, serif) */
/* Famille technique : Space Grotesk (badges, labels, monospace-like) */

.font-body    { font-family: 'Outfit', sans-serif; }
.font-display { font-family: 'Cormorant Garamond', serif; }
.font-tech    { font-family: 'Space Grotesk', sans-serif; }

/* Gradient texte signature NyXia */
.gradient-text,
.text-gradient {
  background: linear-gradient(135deg, #a78bfa, var(--p3));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gold { color: var(--gold); }
.text-green { color: var(--green); }
.text-muted { color: var(--t3); }
.text-dim { color: var(--t-dim); }


/* ══════════════════════════════════════
   4. AMBIENT GLOW (fond atmosphérique)
══════════════════════════════════════ */
.nx-ambient::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse 70% 45% at 15% 5%,  rgba(123,92,255,0.13) 0%, transparent 65%),
    radial-gradient(ellipse 55% 35% at 85% 85%, rgba(79,163,255,0.08) 0%, transparent 60%),
    radial-gradient(ellipse 40% 30% at 50% 50%, rgba(62,45,122,0.06) 0%, transparent 70%);
}


/* ══════════════════════════════════════
   5. NAVBAR
══════════════════════════════════════ */
.nx-nav {
  position: sticky;
  top: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  height: 64px;
  background: rgba(15,28,63,0.92);
  backdrop-filter: blur(24px);
  border-bottom: 1px solid rgba(123,92,255,0.1);
}

.nx-nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.nx-nav-logo img {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  border: 1.5px solid rgba(123,92,255,0.5);
}

.nx-nav-logo span {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 20px;
  font-weight: 700;
  background: linear-gradient(135deg, #a78bfa, var(--p3));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nx-nav-links {
  display: flex;
  gap: 8px;
  align-items: center;
}

.nx-nav-link {
  color: var(--t3);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  padding: 7px 14px;
  border-radius: var(--r-full);
  transition: all var(--ease);
  white-space: nowrap;
}

.nx-nav-link:hover {
  color: var(--t);
  background: rgba(123,92,255,0.1);
}

.nx-nav-link.active {
  color: var(--t);
  background: rgba(123,92,255,0.15);
  border: 1px solid var(--border-hover);
}


/* ══════════════════════════════════════
   6. AVATAR NYXIA
══════════════════════════════════════ */
.nx-avatar {
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(123,92,255,0.5);
  box-shadow: 0 0 40px rgba(123,92,255,0.35), 0 0 80px rgba(123,92,255,0.12);
  animation: nx-float 4s ease-in-out infinite;
}

.nx-avatar-sm  { width: 32px; height: 32px; }
.nx-avatar-md  { width: 44px; height: 44px; }
.nx-avatar-lg  { width: 80px; height: 80px; }
.nx-avatar-xl  { width: 110px; height: 110px; }

@keyframes nx-float {
  0%, 100% { transform: translateY(0);   box-shadow: 0 0 40px rgba(123,92,255,0.35), 0 0 80px rgba(123,92,255,0.12); }
  50%       { transform: translateY(-8px); box-shadow: 0 0 60px rgba(123,92,255,0.55), 0 0 100px rgba(123,92,255,0.2); }
}

@keyframes nx-breathe {
  0%, 100% { box-shadow: 0 0 20px rgba(123,92,255,0.4); }
  50%      { box-shadow: 0 0 35px rgba(123,92,255,0.7), 0 0 60px rgba(123,92,255,0.2); }
}


/* ══════════════════════════════════════
   7. CARTES & SURFACES
══════════════════════════════════════ */
.nx-card {
  background: rgba(26,37,84,0.45);
  border: 1px solid rgba(123,92,255,0.14);
  border-radius: var(--r-lg);
  backdrop-filter: blur(12px);
}

.nx-card-solid {
  background: rgba(26,37,84,0.7);
  border: 1px solid rgba(123,92,255,0.12);
  border-radius: 16px;
}

.nx-card:hover,
.nx-card-hover:hover {
  border-color: rgba(123,92,255,0.38);
  transform: translateY(-4px);
  box-shadow: 0 10px 36px rgba(0,0,0,0.35);
}

.nx-surface {
  background: rgba(19,21,42,0.95);
  backdrop-filter: blur(15px);
  border: 1px solid var(--border);
}

.nx-glass {
  background: rgba(26,37,84,0.4);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(123,92,255,0.12);
  border-radius: var(--r-lg);
}


/* ══════════════════════════════════════
   8. BOUTONS
══════════════════════════════════════ */
.nx-btn {
  padding: 10px 24px;
  border-radius: var(--r-full);
  border: 1px solid var(--border-hover);
  background: rgba(123,92,255,0.08);
  color: var(--t2);
  font-family: 'Outfit', sans-serif;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--ease);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
}

.nx-btn:hover {
  border-color: var(--p);
  color: var(--t);
  background: rgba(123,92,255,0.18);
}

/* Primaire */
.nx-btn-primary {
  padding: 12px 32px;
  border-radius: var(--r-full);
  border: none;
  background: linear-gradient(135deg, var(--p), var(--p2));
  color: #fff;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 0 24px var(--glow);
  transition: all 0.25s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.nx-btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 0 40px var(--glow-strong);
}

.nx-btn-primary:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

/* Petit bouton */
.nx-btn-sm {
  padding: 7px 16px;
  border-radius: var(--r-full);
  border: 1px solid rgba(123,92,255,0.28);
  background: rgba(123,92,255,0.08);
  color: var(--t2);
  font-family: 'Outfit', sans-serif;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--ease);
  display: inline-flex;
  align-items: center;
  gap: 5px;
  text-decoration: none;
}

.nx-btn-sm:hover {
  border-color: var(--p);
  color: var(--t);
  background: rgba(123,92,255,0.18);
}

.nx-btn-accent {
  background: linear-gradient(135deg, var(--p), var(--p2));
  border-color: transparent;
  color: #fff;
  box-shadow: 0 0 16px rgba(123,92,255,0.35);
}

.nx-btn-accent:hover {
  box-shadow: 0 0 28px var(--glow-strong);
  transform: translateY(-1px);
}

.nx-btn-green {
  background: rgba(0,230,118,0.15);
  border-color: rgba(0,230,118,0.3);
  color: var(--green);
}

.nx-btn-danger {
  background: rgba(255,75,110,0.1);
  border: 1px solid rgba(255,75,110,0.25);
  color: var(--red-soft);
}

.nx-btn-danger:hover {
  background: rgba(255,75,110,0.2);
}


/* ══════════════════════════════════════
   9. INPUTS & FORMS
══════════════════════════════════════ */
.nx-input {
  width: 100%;
  background: rgba(15,28,63,0.65);
  border: 1px solid rgba(123,92,255,0.2);
  border-radius: var(--r-full);
  color: var(--t);
  font-family: 'Outfit', sans-serif;
  font-size: 15px;
  padding: 13px 20px;
  outline: none;
  transition: border-color var(--ease), box-shadow var(--ease);
}

.nx-input:focus {
  border-color: rgba(123,92,255,0.5);
  box-shadow: 0 0 0 3px rgba(123,92,255,0.1);
}

.nx-input::placeholder {
  color: var(--t3);
}

.nx-select {
  background: rgba(15,28,63,0.65);
  border: 1px solid rgba(123,92,255,0.2);
  border-radius: var(--r-full);
  color: var(--t2);
  font-family: 'Outfit', sans-serif;
  font-size: 13px;
  padding: 7px 14px;
  outline: none;
  cursor: pointer;
  transition: border-color var(--ease);
}

.nx-select:focus {
  border-color: rgba(123,92,255,0.5);
}

.nx-textarea {
  width: 100%;
  background: rgba(15,28,63,0.7);
  border: 1px solid rgba(123,92,255,0.2);
  border-radius: var(--r);
  color: var(--t);
  font-family: 'Outfit', sans-serif;
  font-size: 14px;
  padding: 12px 16px;
  outline: none;
  resize: vertical;
  transition: border-color var(--ease);
  line-height: 1.5;
}

.nx-textarea:focus {
  border-color: rgba(123,92,255,0.5);
}


/* ══════════════════════════════════════
   10. BADGES
══════════════════════════════════════ */
.nx-badge {
  background: rgba(123,92,255,0.2);
  border: 1px solid var(--border-hover);
  border-radius: var(--r-full);
  font-size: 12px;
  padding: 2px 10px;
  color: var(--p3);
  font-family: 'Outfit', sans-serif;
}

.nx-badge-brand {
  background: linear-gradient(135deg, rgba(123,92,255,0.2), rgba(79,163,255,0.2));
  border: 1px solid var(--border-hover);
  padding: 3px 10px;
  border-radius: var(--r-full);
  font-size: 11px;
  font-weight: 700;
  color: var(--p3);
  font-family: 'Space Grotesk', sans-serif;
}

.nx-badge-green {
  background: rgba(0,230,118,0.15);
  border-color: rgba(0,230,118,0.3);
  color: var(--green);
}

.nx-badge-gold {
  background: linear-gradient(135deg, var(--gold), #e6a800);
  color: #1a1000;
}


/* ══════════════════════════════════════
   11. TABS
══════════════════════════════════════ */
.nx-tabs {
  display: flex;
  gap: 4px;
  background: rgba(26,37,84,0.4);
  border: 1px solid rgba(123,92,255,0.12);
  border-radius: var(--r-full);
  padding: 4px;
  width: fit-content;
}

.nx-tab {
  padding: 10px 28px;
  border-radius: var(--r-full);
  border: none;
  background: transparent;
  color: var(--t3);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s;
  display: flex;
  align-items: center;
  gap: 7px;
}

.nx-tab:hover { color: var(--t2); }

.nx-tab.active {
  background: linear-gradient(135deg, var(--p), var(--p2));
  color: #fff;
  box-shadow: 0 0 20px var(--glow);
}


/* ══════════════════════════════════════
   12. SUGGESTIONS (tags cliquables)
══════════════════════════════════════ */
.nx-sugg {
  padding: 5px 14px;
  border-radius: var(--r-full);
  border: 1px solid rgba(123,92,255,0.18);
  background: rgba(123,92,255,0.06);
  color: var(--t3);
  font-family: 'Outfit', sans-serif;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.18s;
}

.nx-sugg:hover {
  border-color: var(--p);
  color: var(--t2);
  background: rgba(123,92,255,0.12);
}


/* ══════════════════════════════════════
   13. MODALS
══════════════════════════════════════ */
.nx-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(8px);
  display: none;
  align-items: center;
  justify-content: center;
}

.nx-modal-overlay.open {
  display: flex;
}

.nx-modal {
  background: var(--bg3);
  border: 1px solid rgba(123,92,255,0.25);
  border-radius: var(--r-lg);
  padding: 32px;
  width: 100%;
  max-width: 480px;
  margin: 20px;
  box-shadow: 0 24px 64px rgba(0,0,0,0.5);
}


/* ══════════════════════════════════════
   14. TOAST (notification)
══════════════════════════════════════ */
.nx-toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(26,37,84,0.95);
  border: 1px solid var(--border-hover);
  color: var(--t2);
  font-family: 'Outfit', sans-serif;
  font-size: 14px;
  padding: 12px 24px;
  border-radius: var(--r-full);
  z-index: 9999;
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
  animation: nx-toast-in 0.3s ease;
  max-width: 90vw;
  text-align: center;
}

@keyframes nx-toast-in {
  from { opacity: 0; transform: translateX(-50%) translateY(20px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}


/* ══════════════════════════════════════
   15. LOADER / SPINNER
══════════════════════════════════════ */
.nx-spinner {
  width: 52px;
  height: 52px;
  border: 3px solid rgba(123,92,255,0.15);
  border-top-color: var(--p);
  border-radius: 50%;
  animation: nx-spin 0.8s linear infinite;
}

.nx-spinner-sm {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: nx-spin 0.7s linear infinite;
}

@keyframes nx-spin {
  to { transform: rotate(360deg); }
}


/* ══════════════════════════════════════
   16. STATUS INDICATORS
══════════════════════════════════════ */
.nx-status-online {
  font-size: 11px;
  color: var(--green);
  display: flex;
  align-items: center;
  gap: 4px;
}

.nx-status-online::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  animation: nx-pulse-green 2s ease-in-out infinite;
}

@keyframes nx-pulse-green {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.4; }
}


/* ══════════════════════════════════════
   17. GRILLE MÉDIAS
══════════════════════════════════════ */
.nx-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

.nx-grid-item {
  background: rgba(26,37,84,0.4);
  border: 1px solid rgba(123,92,255,0.1);
  border-radius: var(--r);
  overflow: hidden;
  cursor: pointer;
  transition: all 0.25s;
  position: relative;
}

.nx-grid-item:hover {
  border-color: rgba(123,92,255,0.38);
  transform: translateY(-4px);
  box-shadow: 0 10px 36px rgba(0,0,0,0.35);
}


/* ══════════════════════════════════════
   18. INFO BOX
══════════════════════════════════════ */
.nx-info {
  background: rgba(79,163,255,0.06);
  border: 1px solid rgba(79,163,255,0.15);
  border-radius: var(--r);
  padding: 16px 20px;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 13px;
  color: var(--t3);
  line-height: 1.6;
}

.nx-info strong {
  color: var(--p3);
  font-weight: 600;
}


/* ══════════════════════════════════════
   19. ANIMATIONS UTILITAIRES
══════════════════════════════════════ */
@keyframes nx-fade-up {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: none; }
}

@keyframes nx-fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.nx-fade-up { animation: nx-fade-up 0.4s ease; }
.nx-fade-in { animation: nx-fade-in 0.3s ease; }


/* ══════════════════════════════════════
   20. SCROLLBAR PERSONNALISÉE
══════════════════════════════════════ */
::-webkit-scrollbar {
  width: 5px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(123,92,255,0.2);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(123,92,255,0.4);
}


/* ══════════════════════════════════════
   21. RESPONSIVE
══════════════════════════════════════ */
@media (max-width: 700px) {
  .nx-nav { padding: 0 16px; }
  .nx-tabs { width: 100%; justify-content: center; }
  .nx-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
  .nx-hide-mobile { display: none; }
}