/* ============================================
   TRACKINN — Global Design System
   main.css
   ============================================ */

@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap");

/* ---- CSS Variables ---- */
:root {
  /* Brand Colors */
  --primary: #1a237e;
  --primary-light: #283593;
  --primary-dark: #0d1257;
  --accent: #00bcd4;
  --accent-light: #4dd0e1;
  --accent-dark: #0097a7;
  --secondary: #7c4dff;

  /* Status Colors */
  --success: #00c853;
  --success-bg: rgba(0, 200, 83, 0.12);
  --warning: #ff6f00;
  --warning-bg: rgba(255, 111, 0, 0.12);
  --danger: #f44336;
  --danger-bg: rgba(244, 67, 54, 0.12);
  --info: #29b6f6;
  --info-bg: rgba(41, 182, 246, 0.12);

  /* Backgrounds */
  --bg-dark: #080b1a;
  --bg-darker: #050711;
  --bg-card: #0f1227;
  --bg-card2: #141832;
  --bg-glass: rgba(26, 35, 126, 0.15);
  --bg-input: rgba(255, 255, 255, 0.05);

  /* Text */
  --text-primary: #f0f4ff;
  --text-secondary: #94a3c0;
  --text-muted: #4a5578;

  /* Borders */
  --border: rgba(255, 255, 255, 0.07);
  --border-accent: rgba(0, 188, 212, 0.3);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 48px rgba(0, 0, 0, 0.5);
  --shadow-accent: 0 4px 24px rgba(0, 188, 212, 0.2);
  --shadow-primary: 0 4px 24px rgba(26, 35, 126, 0.4);

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);

  /* Font */
  --font-main: "Inter", sans-serif;
  --font-display: "Plus Jakarta Sans", sans-serif;

  /* Sidebar */
  --sidebar-width: 260px;
  --sidebar-collapsed: 72px;
  --topbar-height: 64px;
}

/* Light Theme Overrides */
:root.light-theme, .light-theme {
  /* Backgrounds */
  --bg-dark: #f0f4f8;
  --bg-darker: #e2e8f0;
  --bg-card: #ffffff;
  --bg-card2: #f8fafc;
  --bg-glass: rgba(255, 255, 255, 0.85);
  --bg-input: rgba(0, 0, 0, 0.04);

  /* Text */
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;

  /* Borders */
  --border: rgba(0, 0, 0, 0.08);
  --border-accent: rgba(0, 188, 212, 0.4);
}

/* Smooth Transitions */
body, .card, .user-header, .bottom-nav, .user-page, .sidebar, .topbar, .main-content, .kpi-card, .chart-container, .alert-item, .compliance-card, .room-tile, .quick-action-btn, textarea, input, select {
  transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease, box-shadow 0.3s ease !important;
}

/* ---- Reset ---- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  font-size: 16px;
}
body {
  font-family: var(--font-main);
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img {
  max-width: 100%;
  display: block;
}
a {
  text-decoration: none;
  color: inherit;
}
ul,
ol {
  list-style: none;
}
button {
  cursor: pointer;
  font-family: var(--font-main);
  border: none;
  outline: none;
}
input,
select,
textarea {
  font-family: var(--font-main);
  outline: none;
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-card);
}
::-webkit-scrollbar-thumb {
  background: var(--primary-light);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}

/* ---- Typography ---- */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}
h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}
h2 {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
}
h3 {
  font-size: clamp(1.2rem, 2vw, 1.75rem);
}
h4 {
  font-size: 1.25rem;
}
h5 {
  font-size: 1.1rem;
}
p {
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ---- Gradient Text ---- */
.gradient-text {
  background: linear-gradient(135deg, var(--accent) 0%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.gradient-text-primary {
  background: linear-gradient(135deg, #fff 0%, var(--accent-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  border: none;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--secondary) 100%);
  color: #fff;
  box-shadow: var(--shadow-accent);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 188, 212, 0.4);
}
.btn-outline {
  background: transparent;
  border: 1.5px solid var(--border-accent);
  color: var(--accent);
}
.btn-outline:hover {
  background: rgba(0, 188, 212, 0.1);
  border-color: var(--accent);
  transform: translateY(-2px);
}
.btn-ghost {
  background: var(--bg-glass);
  border: 1px solid var(--border);
  color: var(--text-primary);
  backdrop-filter: blur(10px);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}
.btn-danger {
  background: var(--danger);
  color: #fff;
}
.btn-sm {
  padding: 8px 18px;
  font-size: 0.875rem;
}
.btn-lg {
  padding: 16px 36px;
  font-size: 1.05rem;
}
.btn-icon {
  padding: 10px;
  border-radius: var(--radius-md);
}

/* ---- Cards ---- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: var(--transition);
}
.card:hover {
  border-color: var(--border-accent);
}
.card-glass {
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
}

/* ---- Badges ---- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.3px;
}
.badge-success {
  background: var(--success-bg);
  color: var(--success);
}
.badge-warning {
  background: var(--warning-bg);
  color: var(--warning);
}
.badge-danger {
  background: var(--danger-bg);
  color: var(--danger);
}
.badge-info {
  background: var(--info-bg);
  color: var(--info);
}
.badge-primary {
  background: rgba(26, 35, 126, 0.4);
  color: var(--accent);
}

/* ---- Form Elements ---- */
.form-group {
  margin-bottom: 20px;
}
.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
}
.form-control {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: var(--transition-fast);
}
.form-control:focus {
  border-color: var(--accent);
  background: rgba(0, 188, 212, 0.05);
  box-shadow: 0 0 0 3px rgba(0, 188, 212, 0.1);
}
.form-control::placeholder {
  color: var(--text-muted);
}
select.form-control {
  cursor: pointer;
}
select.form-control option {
  background: var(--bg-card);
}

/* ---- Table ---- */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.data-table thead {
  background: var(--bg-card2);
}
.data-table th {
  padding: 14px 18px;
  text-align: left;
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.data-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  color: var(--text-primary);
  vertical-align: middle;
}
.data-table tr:last-child td {
  border-bottom: none;
}
.data-table tbody tr {
  transition: var(--transition-fast);
}
.data-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.03);
}

/* ---- Modal ---- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
  padding: 20px;
}
.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}
.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 32px;
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(20px) scale(0.98);
  transition: var(--transition);
  position: relative;
}
.modal-overlay.active .modal {
  transform: translateY(0) scale(1);
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.modal-close {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: var(--bg-input);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}
.modal-close:hover {
  background: var(--danger-bg);
  color: var(--danger);
  border-color: var(--danger);
}

/* ---- Utility ---- */
.flex {
  display: flex;
}
.flex-col {
  display: flex;
  flex-direction: column;
}
.items-center {
  align-items: center;
}
.justify-between {
  justify-content: space-between;
}
.justify-center {
  justify-content: center;
}
.gap-1 {
  gap: 8px;
}
.gap-2 {
  gap: 16px;
}
.gap-3 {
  gap: 24px;
}
.w-full {
  width: 100%;
}
.text-center {
  text-align: center;
}
.text-right {
  text-align: right;
}
.mt-1 {
  margin-top: 8px;
}
.mt-2 {
  margin-top: 16px;
}
.mt-3 {
  margin-top: 24px;
}
.mb-1 {
  margin-bottom: 8px;
}
.mb-2 {
  margin-bottom: 16px;
}
.mb-3 {
  margin-bottom: 24px;
}
.hidden {
  display: none !important;
}
.section-label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

/* ---- Divider ---- */
.divider {
  height: 1px;
  background: var(--border);
  margin: 24px 0;
}

/* ---- Animations ---- */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}
@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}
@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-12px);
  }
}
@keyframes shimmer {
  0% {
    background-position: -200% center;
  }
  100% {
    background-position: 200% center;
  }
}
.animate-fade {
  animation: fadeIn 0.5s ease forwards;
}
.animate-float {
  animation: float 4s ease-in-out infinite;
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .btn {
    padding: 11px 22px;
    font-size: 0.9rem;
  }
  .card {
    padding: 16px;
  }
  .modal {
    padding: 20px;
  }
  .data-table th,
  .data-table td {
    padding: 10px 12px;
  }
}

@media (max-width: 480px) {
  .modal {
    padding: 16px;
    border-radius: var(--radius-lg);
  }
  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.3rem; }
  h3 { font-size: 1.1rem; }
  .btn { padding: 10px 18px; font-size: 0.85rem; }
}

@media (max-width: 360px) {
  .card { padding: 12px; }
  .modal { padding: 14px; }
  .btn { width: 100%; justify-content: center; }
  .data-table th, .data-table td { padding: 8px 10px; font-size: 0.8rem; }
  h1 { font-size: 1.35rem; }
}