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

:root {
  --bg: #0d1117;
  --bg-card: #161b22;
  --bg-nav: #161b22;
  --border: #30363d;
  --text: #e6edf3;
  --text-muted: #8b949e;
  --primary: #58a6ff;
  --primary-hover: #79c0ff;
  --danger: #f85149;
  --success: #3fb950;
  --warning: #d29922;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-hover); }

.navbar {
  background: var(--bg-nav);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.nav-logo {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
}
.nav-logo span { color: var(--primary); }
.nav-links { display: flex; gap: 20px; align-items: center; }
.nav-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: color 0.2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--text); }

.user-badge {
  background: var(--primary);
  color: var(--bg);
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 600;
}

.hero {
  padding: 100px 20px;
  text-align: center;
}
.hero h1 {
  font-size: 2.8rem;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--primary), #a371f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero p {
  color: var(--text-muted);
  font-size: 1.15rem;
  max-width: 600px;
  margin: 0 auto 32px;
  line-height: 1.6;
}
.hero-buttons { display: flex; gap: 16px; justify-content: center; }

.features { padding: 60px 20px; max-width: 1200px; margin: 0 auto; }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; }
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  transition: border-color 0.2s;
}
.feature-card:hover { border-color: var(--primary); }
.feature-icon { font-size: 2rem; margin-bottom: 12px; }
.feature-card h3 { margin-bottom: 8px; font-size: 1.1rem; }
.feature-card p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.5; }

.btn {
  display: inline-block;
  padding: 10px 24px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  border: 1px solid transparent;
  text-decoration: none;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover { background: var(--primary-hover); color: #fff; }
.btn-outline {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-danger {
  background: var(--danger);
  color: #fff;
  padding: 6px 14px;
  font-size: 0.8rem;
}
.btn-danger:hover { opacity: 0.85; color: #fff; }
.btn-full { width: 100%; text-align: center; }
.btn-sm { padding: 6px 14px; font-size: 0.8rem; }

.auth-page {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: calc(100vh - 60px);
  padding: 40px 20px;
}
.auth-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px;
  width: 100%;
  max-width: 420px;
}
.auth-card h2 { margin-bottom: 4px; }
.auth-subtitle { color: var(--text-muted); margin-bottom: 24px; font-size: 0.9rem; }
.auth-footer { margin-top: 20px; text-align: center; color: var(--text-muted); font-size: 0.9rem; }

.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.form-group input, .form-group select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s;
}
.form-group input:focus, .form-group select:focus {
  border-color: var(--primary);
}

.error-message {
  color: var(--danger);
  font-size: 0.85rem;
  margin-bottom: 12px;
  padding: 8px 12px;
  background: rgba(248,81,73,0.1);
  border-radius: 6px;
}

.footer {
  text-align: center;
  padding: 30px;
  color: var(--text-muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
  margin-top: 60px;
}

.dashboard-container {
  display: flex;
  min-height: calc(100vh - 60px);
}

.sidebar {
  width: 220px;
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  padding: 20px 0;
  flex-shrink: 0;
}
.sidebar ul { list-style: none; }
.sidebar a {
  display: block;
  padding: 12px 24px;
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: all 0.2s;
}
.sidebar a:hover, .sidebar a.tab-active {
  color: var(--text);
  background: rgba(88,166,255,0.08);
  border-right: 2px solid var(--primary);
}

.main-content {
  flex: 1;
  padding: 32px;
  max-width: 960px;
}
.main-content h2 { margin-bottom: 20px; font-size: 1.5rem; }
.profile-layout { display: flex; gap: 32px; align-items: flex-start; }
.profile-avatar-section { display: flex; flex-direction: column; align-items: center; gap: 12px; flex-shrink: 0; }
.profile-avatar-frame { width: 120px; height: 120px; border-radius: 50%; overflow: hidden; border: 3px solid var(--border); background: var(--bg-card); }
.profile-avatar-img { width: 100%; height: 100%; object-fit: cover; }
.file-label-center { cursor: pointer; font-size: 0.85rem; color: var(--primary); text-align: center; }
.file-label-center:hover { color: var(--primary-hover); }
@media (max-width: 600px) { .profile-layout { flex-direction: column; align-items: center; } }

.tab-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}
.tab-header h2 { margin-bottom: 0; }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
  text-align: center;
}
.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}
.stat-label { color: var(--text-muted); font-size: 0.85rem; }

.item-list { display: flex; flex-direction: column; gap: 12px; }
.item-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.item-card .item-info h4 { margin-bottom: 4px; }
.item-card .item-info p { color: var(--text-muted); font-size: 0.85rem; }
.item-card .item-actions { display: flex; gap: 8px; }

.status-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 10px;
  font-size: 0.75rem;
  font-weight: 600;
}
.status-online { background: rgba(63,185,80,0.15); color: var(--success); }
.status-offline { background: rgba(139,148,158,0.15); color: var(--text-muted); }

.modal {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}
.modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  width: 100%;
  max-width: 440px;
  position: relative;
}
.modal-close {
  position: absolute;
  top: 12px; right: 16px;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-muted);
}
.modal-close:hover { color: var(--text); }
.modal h3 { margin-bottom: 20px; }

.profile-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
}
.profile-field {
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}
.profile-field:last-child { border-bottom: none; }

.admin-stats {
  display: flex;
  gap: 24px;
  margin-bottom: 20px;
  color: var(--text-muted);
  font-size: 0.9rem;
}
.admin-stats strong { color: var(--text); }

.table-wrapper { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
th {
  text-align: left;
  padding: 12px 16px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
  font-weight: 600;
}
td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}
tr:hover td { background: rgba(88,166,255,0.04); }

.empty-state {
  text-align: center;
  padding: 48px 20px;
  color: var(--text-muted);
}

.chat-body { overflow: hidden; }
#chat-app { display: flex; flex-direction: column; height: calc(100vh - 60px); }
#login { display: flex; flex-direction: column; align-items: center; justify-content: center; flex: 1; gap: 12px; padding: 20px; }
#login h1 { font-size: 1.8rem; color: var(--primary); }
#login input, #login .file-label { width: 320px; padding: 10px 14px; border-radius: 8px; border: 1px solid var(--border); background: var(--bg); color: var(--text); font-size: 0.95rem; outline: none; }
#login input:focus { border-color: var(--primary); }
#login .file-label { display: flex; align-items: center; gap: 8px; cursor: pointer; color: var(--text-muted); }
#login .file-label:hover { border-color: var(--primary); color: var(--text); }
#login .file-label input { display: none; }
.avatar-row { display: flex; align-items: center; gap: 12px; width: 320px; }
.avatar-preview { width: 48px; height: 48px; border-radius: 50%; object-fit: cover; border: 2px solid var(--border); }
#chat-ui { display: none; flex-direction: column; flex: 1; }
#chat-header { display: flex; align-items: center; padding: 8px 16px; background: var(--bg-card); border-bottom: 1px solid var(--border); gap: 12px; }
.ch-left { display: flex; align-items: center; gap: 12px; flex: 1; }
.ch-title { color: var(--primary); font-weight: 700; font-size: 0.95rem; }
.ch-server { color: var(--text-muted); font-size: 0.8rem; }
.ch-right { display: flex; align-items: center; gap: 8px; }
.ch-nick { color: var(--primary); font-weight: 600; font-size: 0.85rem; }
.ch-online { color: var(--text-muted); font-size: 0.8rem; }
#chat-main { display: flex; flex: 1; overflow: hidden; }
#ch-sidebar { width: 200px; background: var(--bg-card); border-right: 1px solid var(--border); display: flex; flex-direction: column; }
#ch-chan-header, #ch-users-header { display: flex; align-items: center; justify-content: space-between; padding: 8px 14px; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 1px; color: var(--text-muted); border-bottom: 1px solid var(--border); }
.btn-icon { background: none; border: 1px solid var(--border); color: var(--primary); padding: 2px 8px; border-radius: 4px; cursor: pointer; font-size: 14px; font-family: inherit; }
.btn-icon:hover { background: var(--primary); color: #fff; }
#ch-channel-list { flex: 1; overflow-y: auto; }
.chan { padding: 8px 14px; cursor: pointer; border-left: 3px solid transparent; display: flex; align-items: center; justify-content: space-between; font-size: 0.85rem; transition: .15s; }
.chan:hover { background: var(--hover); }
.chan.active { border-left-color: var(--primary); background: rgba(88,166,255,0.08); color: var(--primary); }
.chan-del { color: var(--danger); font-size: 12px; cursor: pointer; opacity: 0; }
.chan:hover .chan-del { opacity: .6; }
.chan-del:hover { opacity: 1 !important; }
#ch-user-list { padding: 4px 0; max-height: 120px; overflow-y: auto; }
.online-user { padding: 4px 14px; font-size: 0.8rem; display: flex; align-items: center; gap: 6px; color: var(--text-muted); }
.online-user.me { color: var(--primary); }
.online-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--success); display: inline-block; }
.you-badge { font-size: 0.65rem; padding: 1px 5px; border-radius: 6px; background: rgba(88,166,255,0.15); color: var(--primary); }
#ch-content { flex: 1; display: flex; flex-direction: column; }
#ch-messages { flex: 1; overflow-y: auto; padding: 12px 16px; display: flex; flex-direction: column; gap: 6px; }
.msg { display: flex; gap: 8px; padding: 6px 10px; border-radius: 8px; transition: .1s; }
.msg:hover { background: rgba(255,255,255,0.02); }
.msg-avatar { width: 32px; height: 32px; border-radius: 50%; flex-shrink: 0; object-fit: cover; background: var(--border); }
.msg-content { flex: 1; min-width: 0; }
.msg-head { font-size: 0.75rem; color: var(--text-muted); margin-bottom: 2px; }
.msg-name { color: #ffd700; font-weight: 600; cursor: pointer; }
.msg-name.me { color: var(--primary); }
.msg-time { color: var(--text-muted); margin-left: 6px; opacity: .6; }
.msg-body { color: var(--text); line-height: 1.4; font-size: 0.9rem; word-break: break-word; }
.msg-body.emote { color: var(--text-muted); font-style: italic; }
#ch-input-bar { display: flex; padding: 10px 16px; gap: 8px; border-top: 1px solid var(--border); background: var(--bg-card); }
#ch-input-bar input { flex: 1; padding: 10px 14px; border-radius: 8px; border: 1px solid var(--border); background: var(--bg); color: var(--text); font-size: 0.95rem; outline: none; }
#ch-input-bar input:focus { border-color: var(--primary); }
#ch-input-bar button { background: var(--primary); color: #fff; border: none; padding: 10px 20px; border-radius: 8px; font-weight: 600; cursor: pointer; font-size: 0.9rem; }
#ch-input-bar button:hover { background: var(--primary-hover); }
#ch-messages::-webkit-scrollbar { width: 6px; }
#ch-messages::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

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

/* Single page — noir & blanc sauf chrono rouge */
.single { background: #000; color: #aaa; min-height: 100vh; display: flex; align-items: center; justify-content: center; font-family: 'SF Mono', 'Fira Code', 'Courier New', monospace; }
.single-container { display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 100vh; padding: 40px 24px; width: 100%; }
.single-top { position: fixed; top: 0; left: 0; right: 0; display: flex; justify-content: space-between; align-items: center; padding: 16px 24px; background: #000; z-index: 10; }
.single-logo { font-size: 1.1rem; font-weight: 700; color: #aaa; text-decoration: none; letter-spacing: -0.5px; }
.single-logo span { color: #666; }
.single-links { display: flex; gap: 16px; align-items: center; }
.single-links a { color: #888; text-decoration: none; font-size: 0.85rem; transition: color 0.2s; }
.single-links a:hover { color: #fff; }
.single-center { text-align: center; }
.single-badge { font-size: 0.65rem; font-weight: 700; letter-spacing: 4px; color: #555; border: 1px solid #333; padding: 6px 14px; display: inline-block; margin-bottom: 32px; }
.single-chrono { font-family: 'SF Mono', 'Fira Code', 'Courier New', monospace; color: #e63946; margin-bottom: 32px; line-height: 1; }
.single-chrono .chrono-days { font-size: 6rem; font-weight: 800; display: block; letter-spacing: 8px; text-shadow: 0 0 60px rgba(230,57,70,0.2); }
.single-chrono .chrono-label { font-size: 0.8rem; font-weight: 400; display: block; color: rgba(230,57,70,0.5); letter-spacing: 6px; text-transform: uppercase; margin-bottom: 8px; }
.single-chrono .chrono-time { font-size: 3rem; font-weight: 600; display: block; letter-spacing: 6px; }
.single-chrono .chrono-ms { font-size: 1.5rem; font-weight: 300; display: block; opacity: 0.5; letter-spacing: 2px; }
.single-text { font-size: 0.9rem; color: #555; letter-spacing: 1px; white-space: pre-wrap; }
.single-bottom { position: fixed; bottom: 0; left: 0; right: 0; display: flex; justify-content: space-between; padding: 16px 24px; font-size: 0.7rem; color: #444; background: #000; }
@media (max-width: 768px) { .single-chrono .chrono-days { font-size: 3.5rem; } .single-chrono .chrono-time { font-size: 2rem; } .single-chrono .chrono-ms { font-size: 1.2rem; } }
.landing-hero h1 { font-size: 4rem; font-weight: 800; line-height: 1.1; margin-bottom: 20px; letter-spacing: -2px; }
.landing-hero h1 .accent { color: var(--primary); }
.landing-hero h1 .dim { color: var(--text-muted); font-weight: 400; }
.hero-sub { font-size: 1.15rem; color: var(--text-muted); line-height: 1.6; margin-bottom: 32px; font-family: 'SF Mono', 'Fira Code', monospace; }
.hero-stats { display: flex; justify-content: center; gap: 40px; margin-top: 48px; padding-top: 32px; border-top: 1px solid rgba(48,54,61,0.3); }
.hero-stats .stat { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.hero-stats .stat-num { font-family: 'SF Mono', 'Fira Code', monospace; font-size: 1.3rem; font-weight: 700; color: var(--primary); }
.hero-stats .stat-label { font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; }
.landing-section { padding: 100px 24px; }
.section-container { max-width: 1000px; margin: 0 auto; }
.landing-section h2 { font-size: 2rem; font-weight: 700; margin-bottom: 16px; text-align: center; }
.landing-section h2 .accent { color: var(--primary); }
.section-desc { text-align: center; color: var(--text-muted); line-height: 1.7; max-width: 700px; margin: 0 auto 48px; font-size: 1.05rem; }
.landing-dark { background: #0a0d14; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.about-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.about-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; padding: 28px; transition: border-color 0.2s, transform 0.2s; }
.about-card:hover { border-color: var(--primary); transform: translateY(-2px); }
.about-icon { width: 36px; height: 36px; color: var(--primary); margin-bottom: 12px; }
.about-icon svg { width: 100%; height: 100%; }
.about-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.about-card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; }
.license-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: 32px; }
.license-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; padding: 28px; }
.license-card h3 { font-size: 1rem; margin-bottom: 12px; color: var(--primary); }
.license-card p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.6; margin-bottom: 16px; }
.license-meta { display: flex; justify-content: space-between; font-size: 0.78rem; color: var(--text-muted); padding-top: 12px; border-top: 1px solid var(--border); }
.footer-inner { max-width: 1000px; margin: 0 auto; padding: 48px 24px; display: flex; flex-direction: column; gap: 24px; }
.footer-brand .nav-logo { font-size: 1.2rem; }
.footer-desc { font-size: 0.8rem; color: var(--text-muted); margin-top: 4px; }
.footer-links { display: flex; gap: 24px; }
.footer-links a { font-size: 0.85rem; color: var(--text-muted); }
.footer-links a:hover { color: var(--text); }
.footer-meta { display: flex; justify-content: space-between; font-size: 0.75rem; color: var(--text-muted); padding-top: 16px; border-top: 1px solid var(--border); }
@media (max-width: 768px) { .about-grid, .license-grid { grid-template-columns: 1fr; } .hero-stats { gap: 20px; flex-wrap: wrap; } .landing-hero h1 { font-size: 2.5rem; } .hero-badge, .hero-sub { font-size: 0.85rem; } }

@media (max-width: 768px) {
  .dashboard-container { flex-direction: column; }
  .sidebar { width: 100%; border-right: none; border-bottom: 1px solid var(--border); padding: 0; }
  .sidebar a { padding: 10px 16px; }
  .sidebar a.tab-active { border-right: none; border-bottom: 2px solid var(--primary); }
  .main-content { padding: 20px; }
  .hero h1 { font-size: 1.8rem; }
  .hero-buttons { flex-direction: column; align-items: center; }
}