/* Material Design 3 Color Tokens - Complementing Tailwind Config */
:root {
  --bg: #111318;
  --surface: #1e1f25;
  --border: #3e484f;
  --text: #e2e2e9;
  --muted: #bdc8d0;
  --accent: #7bd0ff;
  --danger: #ffb4ab;
  --success: #27ae60;
  --radius: 0.75rem;
}

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

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  font-size: 15px;
  line-height: 1.5;
}

/* Glassmorphism utility */
.glass-panel {
  background: rgba(51, 53, 58, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

/* Material Icons */
.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Manrope', sans-serif;
}

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

a:hover {
  text-decoration: underline;
}

/* Custom animations */
@keyframes pulse-glow {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.animate-pulse {
  animation: pulse-glow 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Scrollbar styling */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg);
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--muted);
}

/* Info box / tips */
.info-box {
  background: rgba(123, 208, 255, 0.1);
  border-left: 3px solid var(--accent);
  padding: 0.75rem;
  margin: 1rem 0;
  border-radius: var(--radius);
  color: var(--text);
}
.info-box strong { color: var(--accent); }

/* ── copy button ── */
.btn-copy {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: .3rem .5rem;
  cursor: pointer;
  border-radius: var(--radius);
  font-size: .75rem;
  transition: all .15s;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: .3rem;
}
.btn-copy:hover { background: var(--bg); color: var(--accent); border-color: var(--accent); opacity: 1; }
.btn-copy.copied { background: var(--success); color: #fff; border-color: var(--success); }
.btn-copy svg { width: 14px; height: 14px; }

/* ── responsive design ── */
@media (max-width: 768px) {
  header {
    padding: .75rem 1rem;
    flex-wrap: wrap;
    gap: .5rem;
  }
  
  header .logo { font-size: 1.1rem; }
  header nav { gap: .5rem; font-size: .85rem; }
  header nav span { display: none; }
  
  .page { padding: 1rem .75rem; }
  
  .card { padding: 1rem; margin-bottom: 1rem; }
  .card h2 { font-size: .95rem; }
  
  .login-box { padding: 0 .75rem; }
  
  input[type=text], 
  input[type=password], 
  input[type=number], 
  input[type=datetime-local] {
    font-size: .9rem;
  }
  
  /* Responsive table */
  table { font-size: .85rem; }
  
  table, thead, tbody, th, td, tr {
    display: block;
  }
  
  thead { display: none; }
  
  tr {
    margin-bottom: 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: .75rem;
    background: var(--bg);
  }
  
  td {
    border: none;
    padding: .4rem 0;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
  }
  
  td::before {
    content: attr(data-label);
    font-weight: 600;
    color: var(--muted);
    font-size: .75rem;
    text-transform: uppercase;
    letter-spacing: .05em;
    flex-shrink: 0;
    padding-right: .5rem;
  }
  
  td:last-child { padding-bottom: 0; }
  
  .invite-url-cell {
    flex-direction: column;
    align-items: flex-start;
    gap: .5rem;
    flex: 1;
  }
  
  .btn-sm { padding: .25rem .5rem; font-size: .75rem; }
}

/* iPhone 15-17 Pro Max optimization (430px width) */
@media (max-width: 430px) {
  body { font-size: 14px; }
  
  header { padding: .6rem .75rem; }
  header .logo { font-size: 1rem; }
  
  .page { padding: .75rem .5rem; }
  .card { padding: .75rem; }
  
  input[type=text], 
  input[type=password], 
  input[type=number], 
  input[type=datetime-local] {
    font-size: .85rem;
    padding: .45rem .6rem;
  }
  
  .btn { padding: .4rem .8rem; font-size: .85rem; }
  .btn-sm { padding: .25rem .5rem; font-size: .7rem; }
  
  .flash { padding: .6rem .75rem; font-size: .85rem; }
  
  .checkboxes { gap: .4rem; }
  .checkboxes label { font-size: .85rem; }
}