/* WorkForce Hub — Custom Design System */
/* Supplements Tailwind CDN */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  --primary: #3b82f6;
  --primary-dark: #2563eb;
  --accent: #06b6d4;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --bg-deep: #050b18;
  --bg-surface: #0d1526;
  --bg-card: #111827;
  --bg-glass: rgba(15, 23, 42, 0.8);
  --border: rgba(148, 163, 184, 0.1);
  --border-hover: rgba(148, 163, 184, 0.25);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #475569;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-deep);
  color: var(--text-primary);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ── Scrollbar ─────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-surface); }
::-webkit-scrollbar-thumb { background: #334155; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #475569; }

/* ── Glass Card ────────────────────────────────────────────────── */
.glass-card {
  background: rgba(17, 24, 39, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: 1rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.glass-card:hover { border-color: var(--border-hover); }

/* ── Glow Effects ───────────────────────────────────────────────── */
.glow-blue  { box-shadow: 0 0 30px rgba(59, 130, 246, 0.15); }
.glow-green { box-shadow: 0 0 30px rgba(16, 185, 129, 0.15); }
.glow-red   { box-shadow: 0 0 30px rgba(239, 68, 68, 0.15); }

/* ── Gradient Text ──────────────────────────────────────────────── */
.gradient-text {
  background: linear-gradient(135deg, #60a5fa, #06b6d4, #818cf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Animated gradient border ───────────────────────────────────── */
.gradient-border {
  position: relative;
  background: var(--bg-card);
  border-radius: 1rem;
}
.gradient-border::before {
  content: '';
  position: absolute;
  inset: -1px;
  background: linear-gradient(135deg, #3b82f6, #8b5cf6, #06b6d4);
  border-radius: inherit;
  z-index: -1;
  opacity: 0.5;
}

/* ── Buttons ────────────────────────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.5rem;
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  color: #fff;
  font-weight: 600;
  border-radius: 0.75rem;
  border: 1px solid rgba(59,130,246,0.4);
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
  white-space: nowrap;
}
.btn-primary:hover {
  background: linear-gradient(135deg, #60a5fa, #3b82f6);
  box-shadow: 0 0 20px rgba(59,130,246,0.4);
  transform: translateY(-1px);
}
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.5rem;
  background: rgba(51,65,85,0.5);
  color: var(--text-primary);
  font-weight: 500;
  border-radius: 0.75rem;
  border: 1px solid var(--border);
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
}
.btn-secondary:hover {
  background: rgba(71,85,105,0.6);
  border-color: var(--border-hover);
}

.btn-success {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.5rem 1.25rem;
  background: linear-gradient(135deg, #10b981, #059669);
  color: #fff; font-weight: 600; border-radius: 0.625rem;
  border: 1px solid rgba(16,185,129,0.4); cursor: pointer; transition: all 0.2s;
}
.btn-success:hover { box-shadow: 0 0 16px rgba(16,185,129,0.35); transform: translateY(-1px); }

.btn-danger {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.5rem 1.25rem;
  background: linear-gradient(135deg, #ef4444, #dc2626);
  color: #fff; font-weight: 600; border-radius: 0.625rem;
  border: 1px solid rgba(239,68,68,0.4); cursor: pointer; transition: all 0.2s;
}
.btn-danger:hover { box-shadow: 0 0 16px rgba(239,68,68,0.35); transform: translateY(-1px); }

.btn-sm { padding: 0.375rem 0.875rem; font-size: 0.8125rem; border-radius: 0.5rem; }
.btn-xs { padding: 0.25rem 0.625rem; font-size: 0.75rem; border-radius: 0.375rem; }

/* ── Form inputs ────────────────────────────────────────────────── */
.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  color: var(--text-primary);
  font-size: 0.9375rem;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}
.form-input:focus {
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}
.form-input::placeholder { color: var(--text-muted); }

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.375rem;
}

select.form-input option { background: #1e293b; color: var(--text-primary); }

/* ── Sidebar ────────────────────────────────────────────────────── */
.sidebar {
  width: 260px;
  min-height: 100vh;
  background: rgba(10, 16, 30, 0.95);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0;
  z-index: 50;
  transition: transform 0.3s cubic-bezier(0.4,0,0.2,1);
}
.sidebar.collapsed { transform: translateX(-260px); }

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem 1rem;
  border-radius: 0.625rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  transition: all 0.15s;
  margin: 0.125rem 0.5rem;
}
.sidebar-link:hover {
  background: rgba(59,130,246,0.1);
  color: var(--text-primary);
}
.sidebar-link.active {
  background: linear-gradient(135deg, rgba(59,130,246,0.2), rgba(139,92,246,0.15));
  color: #60a5fa;
  border: 1px solid rgba(59,130,246,0.2);
}
.sidebar-link svg { flex-shrink: 0; }

/* ── Main content offset ─────────────────────────────────────────── */
.main-content { margin-left: 260px; transition: margin-left 0.3s; }
.main-content.full { margin-left: 0; }

/* ── Stat Card ──────────────────────────────────────────────────── */
.stat-card {
  padding: 1.25rem;
  border-radius: 1rem;
  border: 1px solid var(--border);
  background: rgba(17, 24, 39, 0.7);
  position: relative;
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}
.stat-card:hover { transform: translateY(-2px); }
.stat-card::after {
  content: '';
  position: absolute;
  width: 80px; height: 80px;
  border-radius: 50%;
  opacity: 0.08;
  top: -20px; right: -20px;
}

/* ── Avatar ─────────────────────────────────────────────────────── */
.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
  text-transform: uppercase;
  font-size: 0.75rem;
}
.avatar-sm  { width: 32px; height: 32px; font-size: 0.7rem; }
.avatar-md  { width: 40px; height: 40px; font-size: 0.8rem; }
.avatar-lg  { width: 52px; height: 52px; font-size: 1rem; }
.avatar-xl  { width: 72px; height: 72px; font-size: 1.4rem; }

/* ── Badges ─────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ── Table ──────────────────────────────────────────────────────── */
.data-table { width: 100%; border-collapse: collapse; }
.data-table th {
  padding: 0.75rem 1rem;
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  background: rgba(15,23,42,0.4);
}
.data-table td {
  padding: 0.875rem 1rem;
  font-size: 0.9rem;
  border-bottom: 1px solid rgba(148,163,184,0.05);
  color: var(--text-secondary);
}
.data-table tr:hover td { background: rgba(59,130,246,0.04); }
.data-table td:first-child, .data-table th:first-child { padding-left: 1.5rem; }
.data-table td:last-child, .data-table th:last-child { padding-right: 1.5rem; }

/* ── Countdown ──────────────────────────────────────────────────── */
.countdown-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
}
.countdown-num {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1;
  background: linear-gradient(135deg, #60a5fa, #818cf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.countdown-label {
  font-size: 0.625rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

/* ── Active pulse ───────────────────────────────────────────────── */
.pulse-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 0 0 rgba(16,185,129,0.4);
  animation: pulseAnim 1.8s ease infinite;
}
@keyframes pulseAnim {
  0%   { box-shadow: 0 0 0 0 rgba(16,185,129,0.4); }
  70%  { box-shadow: 0 0 0 8px rgba(16,185,129,0); }
  100% { box-shadow: 0 0 0 0 rgba(16,185,129,0); }
}

/* ── Shimmer loading ────────────────────────────────────────────── */
.shimmer {
  background: linear-gradient(90deg, rgba(30,41,59,0.4) 25%, rgba(51,65,85,0.5) 50%, rgba(30,41,59,0.4) 75%);
  background-size: 200% 100%;
  animation: shimmerAnim 1.5s infinite;
}
@keyframes shimmerAnim { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* ── Toast notifications ────────────────────────────────────────── */
#toast-container {
  position: fixed;
  top: 1rem; right: 1rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-width: 360px;
}
.toast {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.875rem 1rem;
  border-radius: 0.875rem;
  background: rgba(15,23,42,0.95);
  border: 1px solid var(--border);
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
  animation: toastIn 0.3s ease;
  backdrop-filter: blur(16px);
}
.toast.removing { animation: toastOut 0.3s ease forwards; }
@keyframes toastIn  { from { opacity:0; transform:translateX(100%); } to { opacity:1; transform:translateX(0); } }
@keyframes toastOut { to   { opacity:0; transform:translateX(100%); } }

/* ── Modal overlay ──────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  animation: fadeIn 0.2s ease;
}
.modal-box {
  background: #0d1526;
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  animation: scaleIn 0.2s ease;
}
@keyframes fadeIn  { from { opacity:0; } to { opacity:1; } }
@keyframes scaleIn { from { opacity:0; transform:scale(0.95); } to { opacity:1; transform:scale(1); } }

/* ── Topbar ─────────────────────────────────────────────────────── */
.topbar {
  height: 60px;
  background: rgba(10,16,30,0.9);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  padding: 0 1.5rem;
  gap: 1rem;
  position: sticky;
  top: 0;
  z-index: 40;
}

/* ── Mobile ─────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-260px); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0 !important; }
  .sidebar-overlay {
    display: none;
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 49;
  }
  .sidebar-overlay.active { display: block; }
  .countdown-num { font-size: 2rem; }
  .data-table { font-size: 0.8rem; }
  .data-table th, .data-table td { padding: 0.625rem 0.625rem; }
}

/* ── Page transition ────────────────────────────────────────────── */
.page-enter {
  animation: pageEnter 0.3s ease both;
}
@keyframes pageEnter { from { opacity:0; transform:translateY(10px); } to { opacity:1; transform:translateY(0); } }

/* ── Custom scrollbar for sidebar ───────────────────────────────── */
.sidebar-nav { flex:1; overflow-y:auto; padding-bottom:1rem; }
.sidebar-nav::-webkit-scrollbar { width: 4px; }

/* ── On-shift banner ─────────────────────────────────────────────── */
.on-shift-banner {
  background: linear-gradient(135deg, rgba(16,185,129,0.15), rgba(6,182,212,0.1));
  border: 1px solid rgba(16,185,129,0.3);
  border-radius: 1rem;
  padding: 1.25rem;
  position: relative;
  overflow: hidden;
}
.on-shift-banner::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, #10b981, #06b6d4);
}

/* ── Priority color tags ─────────────────────────────────────────── */
.priority-low    { color: #6ee7b7; }
.priority-medium { color: #fcd34d; }
.priority-high   { color: #f97316; }
.priority-urgent { color: #f87171; }

/* ── Search bar ─────────────────────────────────────────────────── */
.search-wrap { position: relative; }
.search-wrap .search-icon { position: absolute; left: 0.875rem; top: 50%; transform: translateY(-50%); color: var(--text-muted); pointer-events: none; }
.search-wrap input { padding-left: 2.5rem; }

/* ── Nav section label ───────────────────────────────────────────── */
.nav-section-label {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  padding: 0.75rem 1.5rem 0.25rem;
}

/* ── Range slider ────────────────────────────────────────────────── */
input[type=range] { accent-color: #3b82f6; }

/* ── Chart container ─────────────────────────────────────────────── */
.chart-container { position: relative; }