/* Ak Tyers & Service Station - Master Design System */
:root {
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Dark Theme Palette (Default) */
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-card: #172033;
  --bg-card-hover: #1f2c45;
  --bg-input: #0e1524;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: #f59e0b;
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --accent-amber: #f59e0b;
  --accent-amber-light: #fbbf24;
  --accent-amber-bg: rgba(245, 158, 11, 0.12);
  
  --accent-blue: #3b82f6;
  --accent-blue-bg: rgba(59, 130, 246, 0.12);

  --accent-emerald: #10b981;
  --accent-emerald-bg: rgba(16, 185, 129, 0.12);

  --accent-rose: #f43f5e;
  --accent-rose-bg: rgba(244, 63, 94, 0.12);

  --accent-purple: #8b5cf6;
  --accent-purple-bg: rgba(139, 92, 246, 0.12);

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.35);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -2px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.6), 0 4px 6px -4px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 20px rgba(245, 158, 11, 0.25);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 22px;
  --radius-full: 9999px;
}

[data-theme="light"] {
  --bg-primary: #f1f5f9;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f8fafc;
  --bg-input: #f8fafc;
  --border-color: rgba(0, 0, 0, 0.08);
  --border-focus: #d97706;

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

  --accent-amber: #d97706;
  --accent-amber-light: #b45309;
  --accent-amber-bg: rgba(217, 119, 6, 0.12);

  --accent-blue: #2563eb;
  --accent-blue-bg: rgba(37, 99, 235, 0.1);

  --accent-emerald: #059669;
  --accent-emerald-bg: rgba(5, 150, 105, 0.12);

  --accent-rose: #e11d48;
  --accent-rose-bg: rgba(225, 29, 72, 0.12);

  --accent-purple: #7c3aed;
  --accent-purple-bg: rgba(124, 58, 237, 0.12);

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.12);
  --shadow-glow: 0 0 20px rgba(217, 119, 6, 0.2);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  overflow-x: hidden;
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6, .brand-font {
  font-family: var(--font-heading);
  letter-spacing: -0.02em;
}

/* App Layout */
.app-container {
  display: flex;
  min-height: 100vh;
  width: 100vw;
  overflow-x: hidden;
}

.sidebar {
  width: 260px;
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  position: sticky;
  top: 0;
  height: 100vh;
  z-index: 40;
}

.sidebar-brand {
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
}

.brand-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, #f59e0b, #d97706);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 900;
  color: #000;
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.35);
}

.nav-links {
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
  overflow-y: auto;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  transition: all 0.2s;
  cursor: pointer;
  border: 1px solid transparent;
}

.nav-link:hover {
  background-color: var(--bg-card-hover);
  color: var(--text-primary);
}

.nav-link.active {
  background-color: var(--accent-amber-bg);
  color: var(--accent-amber);
  border-color: rgba(245, 158, 11, 0.3);
}

.nav-badge {
  margin-left: auto;
  font-size: 11px;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  background: var(--accent-rose);
  color: #fff;
  font-weight: 700;
}

.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding-bottom: 80px;
}

@media (min-width: 769px) {
  .main-content {
    padding-bottom: 24px;
  }
}

.top-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(8px);
}

.content-page {
  padding: 24px;
  flex: 1;
  display: none;
}

.content-page.active {
  display: block;
  animation: fadeIn 0.2s ease-out;
}

/* Common Components */
.grid-kpi {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s, transform 0.2s;
}

.card:hover {
  border-color: rgba(245, 158, 11, 0.3);
}

.kpi-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.kpi-value {
  font-size: 26px;
  font-weight: 800;
  font-family: var(--font-heading);
  letter-spacing: -0.02em;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 18px;
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  user-select: none;
  text-decoration: none;
}

.btn-sm {
  padding: 5px 10px;
  font-size: 12px;
}

.btn-primary {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #000;
  box-shadow: 0 2px 8px rgba(245, 158, 11, 0.35);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.5);
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border-color: var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-emerald {
  background: linear-gradient(135deg, #10b981, #059669);
  color: #fff;
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
}

.btn-emerald:hover {
  background: linear-gradient(135deg, #34d399, #10b981);
  transform: translateY(-1px);
}

.btn-rose {
  background: linear-gradient(135deg, #f43f5e, #e11d48);
  color: #fff;
}

.btn-rose:hover {
  background: linear-gradient(135deg, #fb7185, #f43f5e);
}

.btn-blue {
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  color: #fff;
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
}

.btn-icon {
  padding: 8px;
  border-radius: var(--radius-md);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 700;
  font-family: var(--font-heading);
}

.badge-amber { background-color: var(--accent-amber-bg); color: var(--accent-amber); border: 1px solid rgba(245, 158, 11, 0.3); }
.badge-emerald { background-color: var(--accent-emerald-bg); color: var(--accent-emerald); border: 1px solid rgba(16, 185, 129, 0.3); }
.badge-blue { background-color: var(--accent-blue-bg); color: var(--accent-blue); border: 1px solid rgba(59, 130, 246, 0.3); }
.badge-rose { background-color: var(--accent-rose-bg); color: var(--accent-rose); border: 1px solid rgba(244, 63, 94, 0.3); }
.badge-purple { background-color: var(--accent-purple-bg); color: var(--accent-purple); border: 1px solid rgba(139, 92, 246, 0.3); }

/* Forms & Tables */
.form-group {
  margin-bottom: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 10px 14px;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 14px;
  outline: none;
  transition: all 0.2s;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--accent-amber);
  box-shadow: 0 0 0 2px var(--accent-amber-bg);
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
}

.custom-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 14px;
}

.custom-table th {
  background-color: var(--bg-secondary);
  padding: 12px 16px;
  font-weight: 700;
  font-family: var(--font-heading);
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.custom-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-card);
}

.custom-table tr:hover td {
  background-color: var(--bg-card-hover);
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(5px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 16px;
}

.modal-overlay.active {
  display: flex;
  animation: fadeIn 0.2s ease-out;
}

.modal-content {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  animation: scaleUp 0.2s ease-out;
}

.modal-header {
  padding: 18px 22px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-body {
  padding: 22px;
}

.modal-footer {
  padding: 16px 22px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
}

/* POS Screen */
.pos-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 20px;
}

@media (max-width: 1024px) {
  .pos-layout {
    grid-template-columns: 1fr;
  }
}

.pos-catalog {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.pos-cart {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 20px;
  display: flex;
  flex-direction: column;
  height: fit-content;
}

.cart-items {
  max-height: 280px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 14px 0;
}

.cart-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.cart-item-qty {
  display: flex;
  align-items: center;
  gap: 8px;
}

.qty-btn {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.pin-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  max-width: 280px;
  margin: 16px auto;
}

.pin-btn {
  height: 56px;
  font-size: 22px;
  font-weight: 700;
  font-family: var(--font-heading);
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
}

.pin-btn:active {
  transform: scale(0.92);
  background-color: var(--accent-amber-bg);
  border-color: var(--accent-amber);
}

/* Mobile Nav */
.mobile-nav {
  display: none;
}

@media (max-width: 768px) {
  .sidebar {
    display: none;
  }
  .mobile-nav {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 8px 12px 14px 12px;
    z-index: 50;
    justify-content: space-around;
    backdrop-filter: blur(12px);
  }
}

/* Toast Container */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 360px;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: flex-start;
  gap: 12px;
  animation: slideInRight 0.25s ease-out;
}

.toast-success { border-left: 4px solid var(--accent-emerald); }
.toast-error { border-left: 4px solid var(--accent-rose); }
.toast-warning { border-left: 4px solid var(--accent-amber); }
.toast-info { border-left: 4px solid var(--accent-blue); }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes scaleUp { from { opacity: 0; transform: scale(0.95); } to { opacity: 1; transform: scale(1); } }
@keyframes slideInRight { from { opacity: 0; transform: translateX(40px); } to { opacity: 1; transform: translateX(0); } }

/* Print Layout */
@media print {
  body {
    background: #fff !important;
    color: #000 !important;
  }
  .no-print, .sidebar, .top-header, .mobile-nav, .toast-container, .modal-footer, .nav-links {
    display: none !important;
  }
  .print-only {
    display: block !important;
  }
  .modal-overlay {
    position: static !important;
    background: transparent !important;
    display: block !important;
  }
  .modal-content {
    box-shadow: none !important;
    border: none !important;
    max-width: 100% !important;
  }
}