/* ─── MSN Messenger 2.0 — Design System Global ─────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Segoe+UI:ital,wght@0,300;0,400;0,600;0,700;1,400&display=swap');

/* ─── Variables CSS ──────────────────────────────────────────────────────────── */
:root {
  /* Palette MSN Principale */
  --msn-blue: #0078d4;
  --msn-blue-dark: #005a9e;
  --msn-blue-light: #1a90ff;
  --msn-teal: #00b4d8;
  --msn-orange: #ff9500;
  --msn-yellow: #ffd700;
  --msn-green: #00c851;
  --msn-red: #ff4444;
  --msn-purple: #9b59b6;
  
  /* Background */
  --bg-primary: #0a0e1a;
  --bg-secondary: #0f1629;
  --bg-tertiary: #151d35;
  --bg-card: rgba(15, 22, 41, 0.85);
  --bg-glass: rgba(255, 255, 255, 0.05);
  --bg-glass-hover: rgba(255, 255, 255, 0.08);
  
  /* Textes */
  --text-primary: #e8eaf6;
  --text-secondary: #9fa8b5;
  --text-muted: #5c6677;
  --text-accent: #00b4d8;
  
  /* Bordures */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-glass: rgba(255, 255, 255, 0.12);
  --border-accent: rgba(0, 180, 216, 0.3);
  
  /* Gradients */
  --gradient-msn: linear-gradient(135deg, #0078d4 0%, #00b4d8 50%, #0078d4 100%);
  --gradient-orange: linear-gradient(135deg, #ff9500 0%, #ffd700 100%);
  --gradient-bg: linear-gradient(160deg, #0a0e1a 0%, #0f1629 40%, #0a1628 70%, #080d18 100%);
  
  /* Statuts */
  --status-online: #00c851;
  --status-busy: #ff4444;
  --status-away: #ff9500;
  --status-idle: #ffd700;
  --status-offline: #5c6677;
  --status-appear-offline: #5c6677;
  
  /* Ombres */
  --shadow-card: 0 20px 60px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255,255,255,0.06);
  --shadow-glow: 0 0 30px rgba(0, 120, 212, 0.3);
  --shadow-orange: 0 0 20px rgba(255, 149, 0, 0.4);
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 400ms cubic-bezier(0.34, 1.56, 0.64, 1);
  
  /* Espacement */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
}

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

html {
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, sans-serif;
  background: var(--gradient-bg);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.5;
}

/* ─── Scrollbar ──────────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.25); }

/* ─── Boutons ─────────────────────────────────────────────────────────────────── */
.btn-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 13px 24px;
  background: var(--gradient-msn);
  background-size: 200% 200%;
  color: white;
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
  animation: gradientShift 3s ease infinite;
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, transparent 50%);
  opacity: 0;
  transition: var(--transition-fast);
}

.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(0, 120, 212, 0.5); }
.btn-primary:hover::before { opacity: 1; }
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  background: var(--bg-glass);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 13px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-secondary:hover { background: var(--bg-glass-hover); border-color: var(--border-glass); }

.btn-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
  font-size: 16px;
  color: var(--text-secondary);
}

.btn-icon:hover { background: var(--bg-glass-hover); color: var(--text-primary); }

/* ─── Inputs ─────────────────────────────────────────────────────────────────── */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="search"],
textarea {
  width: 100%;
  padding: 11px 14px;
  background: rgba(255,255,255,0.06);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 14px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  outline: none;
  transition: var(--transition-fast);
}

input:focus, textarea:focus {
  border-color: var(--msn-blue);
  background: rgba(255,255,255,0.08);
  box-shadow: 0 0 0 3px rgba(0, 120, 212, 0.15);
}

input::placeholder { color: var(--text-muted); }

/* ─── Statut Badges ──────────────────────────────────────────────────────────── */
.status-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
  position: relative;
}

.status-dot.online { background: var(--status-online); box-shadow: 0 0 6px var(--status-online); }
.status-dot.busy { background: var(--status-busy); }
.status-dot.away { background: var(--status-away); }
.status-dot.idle { background: var(--status-idle); }
.status-dot.offline, .status-dot.appear_offline { background: var(--status-offline); }
.status-dot.be_right_back { background: var(--status-away); }
.status-dot.on_the_phone { background: var(--msn-purple); }
.status-dot.out_to_lunch { background: var(--msn-green); }

.status-dot.online::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background: var(--status-online);
  opacity: 0.3;
  animation: statusPulse 2s ease-in-out infinite;
}

/* ─── Animations ─────────────────────────────────────────────────────────────── */
@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

@keyframes statusPulse {
  0%, 100% { transform: scale(1); opacity: 0.3; }
  50% { transform: scale(1.8); opacity: 0; }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
  from { opacity: 0; transform: translateX(-20px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes nudgeShake {
  0%, 100% { transform: translateX(0); }
  10% { transform: translateX(-8px) rotate(-2deg); }
  20% { transform: translateX(8px) rotate(2deg); }
  30% { transform: translateX(-6px) rotate(-1deg); }
  40% { transform: translateX(6px) rotate(1deg); }
  50% { transform: translateX(-4px); }
  60% { transform: translateX(4px); }
  70% { transform: translateX(-2px); }
  80% { transform: translateX(2px); }
  90% { transform: translateX(-1px); }
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(5deg); }
}

@keyframes winkEntrance {
  0% { opacity: 0; transform: scale(0.5) rotate(-10deg); }
  60% { transform: scale(1.05) rotate(2deg); }
  100% { opacity: 1; transform: scale(1) rotate(0deg); }
}

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

/* ─── Glassmorphisme ──────────────────────────────────────────────────────────── */
.glass {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-glass);
}

/* ─── Utilitaires ─────────────────────────────────────────────────────────────── */
.hidden { display: none !important; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.gap-2 { gap: 8px; }
.gap-1 { gap: 4px; }
.text-muted { color: var(--text-muted); }
.text-sm { font-size: 12px; }
.text-accent { color: var(--text-accent); }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ─── Notifications / Toast ─────────────────────────────────────────────────── */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 14px 18px;
  max-width: 320px;
  display: flex;
  align-items: center;
  gap: 12px;
  animation: slideIn 0.3s ease;
  pointer-events: all;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(12px);
}

.toast.success { border-left: 3px solid var(--msn-green); }
.toast.error { border-left: 3px solid var(--msn-red); }
.toast.info { border-left: 3px solid var(--msn-blue); }

/* ─── Error message ──────────────────────────────────────────────────────────── */
.error-msg {
  color: #ff6b6b;
  font-size: 13px;
  text-align: center;
  min-height: 18px;
  animation: fadeIn 0.2s ease;
}