/* ==========================================================================
   Event Buzzer & Voting Portal — Design System
   ========================================================================== */

:root {
  --color-primary: #6C5CE7;
  --color-primary-dark: #5843e0;
  --color-primary-light: #a29bfe;
  --color-accent: #00D2A0;
  --color-danger: #E63946;
  --color-warning: #E9C46A;
  --color-success: #2A9D8F;
  --color-info: #457B9D;

  --bg-0: #0f0f1a;
  --bg-1: #16162a;
  --bg-2: #1e1e38;
  --bg-3: #262648;
  --text-0: #ffffff;
  --text-1: #c7c7e0;
  --text-2: #8a8ab0;
  --border-color: #2e2e52;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-full: 999px;

  --shadow-sm: 0 2px 8px rgba(0,0,0,.25);
  --shadow-md: 0 8px 24px rgba(0,0,0,.35);
  --shadow-glow: 0 0 40px rgba(108,92,231,.35);

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --transition: 160ms cubic-bezier(.4,0,.2,1);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg-0: #f5f5fb;
    --bg-1: #ffffff;
    --bg-2: #f0f0fa;
    --bg-3: #e8e8f7;
    --text-0: #16162a;
    --text-1: #3a3a5c;
    --text-2: #74748f;
    --border-color: #e1e1f0;
    --shadow-sm: 0 2px 8px rgba(20,20,50,.08);
    --shadow-md: 0 8px 24px rgba(20,20,50,.12);
  }
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--bg-0);
  color: var(--text-0);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}
img { max-width: 100%; display: block; }
a { color: var(--color-primary-light); }
h1, h2, h3, h4 { margin: 0 0 var(--space-3); font-weight: 700; letter-spacing: -.01em; }
p { margin: 0 0 var(--space-3); color: var(--text-1); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 var(--space-4); }
.container-narrow { max-width: 640px; margin: 0 auto; padding: 0 var(--space-4); }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  font-family: inherit; font-size: 15px; font-weight: 600;
  padding: 12px 20px; border-radius: var(--radius-md);
  border: 1px solid transparent; cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), opacity var(--transition);
  text-decoration: none; min-height: 44px; user-select: none;
  -webkit-tap-highlight-color: transparent;
}
.btn:active { transform: scale(.97); }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }
.btn-primary { background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark)); color: #fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover { box-shadow: var(--shadow-glow); }
.btn-accent { background: var(--color-accent); color: #06231c; }
.btn-danger { background: var(--color-danger); color: #fff; }
.btn-outline { background: transparent; border-color: var(--border-color); color: var(--text-0); }
.btn-outline:hover { border-color: var(--color-primary); }
.btn-ghost { background: transparent; color: var(--text-1); }
.btn-ghost:hover { background: var(--bg-2); }
.btn-sm { padding: 8px 14px; font-size: 13px; min-height: 34px; }
.btn-lg { padding: 16px 28px; font-size: 17px; min-height: 54px; }
.btn-block { width: 100%; }
.btn-icon { padding: 10px; min-width: 44px; }

/* ---- Cards ---- */
.card {
  background: var(--bg-1); border: 1px solid var(--border-color);
  border-radius: var(--radius-lg); padding: var(--space-5);
  box-shadow: var(--shadow-sm);
}
.card-tight { padding: var(--space-4); }
.card-title { font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--text-2); margin-bottom: var(--space-2); font-weight: 700; }
.grid { display: grid; gap: var(--space-4); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

/* ---- Badges ---- */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 12px; font-weight: 700; padding: 4px 10px; border-radius: var(--radius-full);
  text-transform: uppercase; letter-spacing: .03em;
}
.badge-primary { background: rgba(108,92,231,.18); color: var(--color-primary-light); }
.badge-success { background: rgba(42,157,143,.18); color: var(--color-success); }
.badge-danger { background: rgba(230,57,70,.18); color: var(--color-danger); }
.badge-warning { background: rgba(233,196,106,.18); color: var(--color-warning); }
.badge-info { background: rgba(69,123,157,.18); color: var(--color-info); }
.badge-muted { background: var(--bg-3); color: var(--text-2); }
.badge-dot { width: 8px; height: 8px; border-radius: 50%; }

/* ---- Alerts ---- */
.alert { padding: var(--space-4); border-radius: var(--radius-md); margin-bottom: var(--space-4); border: 1px solid transparent; font-size: 14px; }
.alert-success { background: rgba(42,157,143,.12); border-color: rgba(42,157,143,.35); color: var(--color-success); }
.alert-error { background: rgba(230,57,70,.12); border-color: rgba(230,57,70,.35); color: var(--color-danger); }
.alert-info { background: rgba(69,123,157,.12); border-color: rgba(69,123,157,.35); color: var(--color-info); }

/* ---- Forms ---- */
label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--text-1); }
.form-group { margin-bottom: var(--space-4); }
input[type=text], input[type=password], input[type=email], input[type=number], input[type=datetime-local], input[type=date], select, textarea {
  width: 100%; padding: 12px 14px; font-size: 15px; font-family: inherit;
  background: var(--bg-2); border: 1px solid var(--border-color); border-radius: var(--radius-sm);
  color: var(--text-0); transition: border-color var(--transition);
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(108,92,231,.2); }
.help-text { font-size: 12px; color: var(--text-2); margin-top: 4px; }
.checkbox-row { display: flex; align-items: center; gap: 8px; }
.checkbox-row input { width: auto; }

/* ---- Tables ---- */
.table-wrap { overflow-x: auto; border-radius: var(--radius-md); border: 1px solid var(--border-color); }
table { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 480px; }
th, td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--border-color); }
th { font-size: 11px; text-transform: uppercase; letter-spacing: .05em; color: var(--text-2); background: var(--bg-2); }
tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--bg-2); }

/* ---- Tabs ---- */
.tabs { display: flex; gap: var(--space-2); border-bottom: 1px solid var(--border-color); margin-bottom: var(--space-5); overflow-x: auto; }
.tab { padding: 10px 16px; font-weight: 600; color: var(--text-2); border-bottom: 2px solid transparent; cursor: pointer; white-space: nowrap; text-decoration: none; }
.tab.active, .tab:hover { color: var(--text-0); border-color: var(--color-primary); }

/* ---- Empty / loading states ---- */
.empty-state { text-align: center; padding: var(--space-7) var(--space-4); color: var(--text-2); }
.empty-state .icon { font-size: 40px; margin-bottom: var(--space-3); }
.spinner { width: 20px; height: 20px; border: 3px solid var(--bg-3); border-top-color: var(--color-primary); border-radius: 50%; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.skeleton { background: linear-gradient(90deg, var(--bg-2) 25%, var(--bg-3) 37%, var(--bg-2) 63%); background-size: 400% 100%; animation: shimmer 1.4s ease infinite; border-radius: var(--radius-sm); }
@keyframes shimmer { 0% { background-position: 100% 50%; } 100% { background-position: 0 50%; } }

/* ---- Modal ---- */
.modal-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,.6); display: none; align-items: center; justify-content: center; z-index: 100; padding: var(--space-4); }
.modal-backdrop.open { display: flex; }
.modal { background: var(--bg-1); border: 1px solid var(--border-color); border-radius: var(--radius-lg); padding: var(--space-5); max-width: 440px; width: 100%; box-shadow: var(--shadow-md); }
.modal h3 { margin-top: 0; }
.modal-actions { display: flex; gap: var(--space-3); justify-content: flex-end; margin-top: var(--space-5); }

/* ---- Top nav (employee) ---- */
.topnav { position: sticky; top: 0; z-index: 40; background: rgba(15,15,26,.85); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border-color); }
@media (prefers-color-scheme: light) { .topnav { background: rgba(255,255,255,.85); } }
.topnav-inner { display: flex; align-items: center; justify-content: space-between; max-width: 1200px; margin: 0 auto; padding: var(--space-3) var(--space-4); }
.brand { display: flex; align-items: center; gap: var(--space-2); font-weight: 800; font-size: 17px; text-decoration: none; color: var(--text-0); }
.brand-badge { width: 32px; height: 32px; border-radius: 9px; background: linear-gradient(135deg, var(--color-primary), var(--color-accent)); display: flex; align-items: center; justify-content: center; font-size: 16px; }
.nav-links { display: flex; gap: var(--space-1); }
.nav-links a { display: flex; align-items: center; gap: 6px; padding: 8px 14px; border-radius: var(--radius-full); color: var(--text-1); text-decoration: none; font-weight: 600; font-size: 14px; transition: background var(--transition); }
.nav-links a:hover, .nav-links a.active { background: var(--bg-2); color: var(--text-0); }
.user-chip { display: flex; align-items: center; gap: 8px; padding: 6px 8px 6px 6px; border-radius: var(--radius-full); background: var(--bg-2); }
.avatar { width: 28px; height: 28px; border-radius: 50%; background: var(--color-primary); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; }

/* Environment badge — always visible, so nobody mistakes staging for production or vice versa */
.env-badge { display: inline-flex; align-items: center; gap: 6px; padding: 5px 12px; border-radius: var(--radius-full); font-size: 11px; font-weight: 800; letter-spacing: .04em; white-space: nowrap; }
.env-badge-prod { background: rgba(42,157,143,.16); color: var(--color-success); border: 1px solid rgba(42,157,143,.4); }
.env-badge-staging { background: rgba(233,196,106,.16); color: var(--color-warning); border: 1px solid rgba(233,196,106,.4); }
.bottomnav { display: none; }
@media (max-width: 720px) {
  .nav-links { display: none; }
  .bottomnav { display: flex; position: fixed; bottom: 0; left: 0; right: 0; background: var(--bg-1); border-top: 1px solid var(--border-color); z-index: 40; padding-bottom: env(safe-area-inset-bottom); }
  .bottomnav a { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 10px 4px; color: var(--text-2); text-decoration: none; font-size: 11px; font-weight: 600; }
  .bottomnav a.active { color: var(--color-primary-light); }
  body { padding-bottom: 64px; }
}

.page { padding: var(--space-5) 0 var(--space-7); }
.page-header { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: var(--space-3); margin-bottom: var(--space-5); }
.page-header h1 { margin: 0; font-size: 26px; }
.subtle { color: var(--text-2); font-size: 14px; }

.stat-card { text-align: left; }
.stat-value { font-size: 30px; font-weight: 800; }
.stat-label { color: var(--text-2); font-size: 13px; font-weight: 600; }

.team-swatch { width: 12px; height: 12px; border-radius: 4px; display: inline-block; }

.footer { text-align: center; padding: var(--space-6) var(--space-4); color: var(--text-2); font-size: 13px; }

/* Utility */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.text-center { text-align: center; }
.w-full { width: 100%; }
.hidden { display: none !important; }