/*
 * ═══════════════════════════════════════════════════════════════
 * INDUSTRIAL PRECISION — Design System
 * PT. Bannister Corporindo Company Profile
 * ═══════════════════════════════════════════════════════════════
 *
 * Font: Hanken Grotesk (body) + JetBrains Mono (labels/data)
 * Palette: Navy primary, Safety Orange accent, light surfaces
 * ═══════════════════════════════════════════════════════════════
 */

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

/* ─── DESIGN TOKENS ─── */
:root {
  /* Primary */
  --primary: #000f2a;
  --primary-container: #002352;
  --on-primary: #ffffff;
  --inverse-primary: #adc6ff;

  /* Secondary / Accent */
  --secondary: #a04100;
  --secondary-container: #fe6b00;
  --on-secondary: #ffffff;

  /* Surface */
  --surface: #f9f9fc;
  --surface-dim: #dadadc;
  --surface-bright: #f9f9fc;
  --surface-container-lowest: #ffffff;
  --surface-container-low: #f3f3f6;
  --surface-container: #eeeef0;
  --surface-container-high: #e8e8ea;
  --surface-container-highest: #e2e2e5;

  /* On Surface */
  --on-surface: #1a1c1e;
  --on-surface-variant: #44474f;
  --inverse-surface: #2f3133;
  --inverse-on-surface: #f0f0f3;

  /* Outline */
  --outline: #747780;
  --outline-variant: #c4c6d0;

  /* Semantic */
  --error: #ba1a1a;
  --on-error: #ffffff;
  --success: #16a34a;
  --on-success: #ffffff;
  --warning: #f59e0b;

  /* Brand accent (Bancorp logo) */
  --brand-accent: #36BAE9;

  /* Radius */
  --radius-sm: 0.125rem;
  --radius: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-full: 9999px;

  /* Spacing */
  --container-max: 1280px;
  --gutter: 24px;
  --section-padding: 80px;
}

/* ─── BASE ─── */
html { scroll-behavior: smooth; }

body {
  font-family: 'Hanken Grotesk', sans-serif;
  color: var(--on-surface);
  background: var(--surface);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; }

.mono { font-family: 'JetBrains Mono', monospace; }

/* ─── CONTAINER ─── */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 48px;
}

@media (max-width: 768px) {
  .container { padding: 0 16px; }
}

/* ─── TYPOGRAPHY ─── */
.headline-xl {
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.headline-lg {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.headline-md {
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.4;
}

.body-lg {
  font-size: 1.125rem;
  font-weight: 400;
  line-height: 1.6;
}

.body-md {
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.6;
}

.label-mono {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8125rem;
  font-weight: 500;
  line-height: 1.0;
  letter-spacing: 0.05em;
}

.caption {
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.4;
}

/* ─── SECTION ─── */
.section { padding: var(--section-padding) 0; }

.section-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}

.section-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.section-desc {
  color: var(--on-surface-variant);
  font-size: 0.95rem;
  max-width: 520px;
  margin-bottom: 48px;
}

/* ─── NAVBAR ─── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--primary);
  padding: 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-brand {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--on-primary);
  letter-spacing: 0.5px;
}
.nav-brand span { color: var(--brand-accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}
.nav-links a {
  font-size: 0.82rem;
  font-weight: 500;
  color: rgba(255,255,255,0.7);
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--on-primary); }

.nav-cta {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--on-secondary);
  background: var(--secondary-container);
  padding: 8px 18px;
  border-radius: var(--radius);
  transition: opacity 0.2s;
}
.nav-cta:hover { opacity: 0.9; color: var(--on-secondary); }

.nav-back {
  font-size: 0.82rem;
  font-weight: 500;
  color: rgba(255,255,255,0.6);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color 0.2s;
}
.nav-back:hover { color: var(--on-primary); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--on-primary);
  font-size: 1.2rem;
  cursor: pointer;
}

/* ─── MOBILE MENU ─── */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 99;
  background: var(--primary);
  padding: 80px 24px 40px;
  flex-direction: column;
  gap: 0;
}
.mobile-menu.show { display: flex; }
.mobile-menu a {
  font-size: 1rem;
  font-weight: 500;
  color: rgba(255,255,255,0.7);
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.mobile-menu a:hover { color: var(--on-primary); }

/* ─── BUTTONS ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-family: 'Hanken Grotesk', sans-serif;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  text-decoration: none;
}

.btn-primary-filled {
  background: var(--primary);
  color: var(--on-primary);
}
.btn-primary-filled:hover { opacity: 0.9; }

.btn-accent {
  background: var(--secondary-container);
  color: var(--on-secondary);
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.btn-accent:hover { opacity: 0.9; box-shadow: 0 4px 8px rgba(0,0,0,0.15); }

.btn-ghost {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.25);
  color: rgba(255,255,255,0.8);
}
.btn-ghost:hover { border-color: rgba(255,255,255,0.5); color: var(--on-primary); }

.btn-outline {
  background: transparent;
  border: 1px solid var(--outline-variant);
  color: var(--on-surface);
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }

.btn-sm {
  padding: 6px 14px;
  font-size: 0.78rem;
  border-radius: var(--radius);
}

/* ─── CARDS ─── */
.card {
  background: var(--surface-container-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-lg);
  transition: all 0.2s;
}
.card:hover {
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
  border-color: var(--outline);
}

/* ─── BADGES ─── */
.badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 2px;
  letter-spacing: 0.03em;
  display: inline-block;
}
.badge-active { background: #dcfce7; color: #166534; }
.badge-inactive { background: #fee2e2; color: #991b1b; }
.badge-accent { background: rgba(254,107,0,0.1); color: var(--secondary); }

/* ─── FORM ─── */
.form-group { margin-bottom: 16px; }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--on-surface-variant);
  margin-bottom: 4px;
}
.form-label .required { color: var(--error); }

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  font-family: 'Hanken Grotesk', sans-serif;
  font-size: 0.88rem;
  color: var(--on-surface);
  outline: none;
  transition: border-color 0.2s;
  background: var(--surface-container-lowest);
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus { border-color: var(--primary); }

.form-textarea { resize: vertical; min-height: 120px; line-height: 1.6; }

.form-hint {
  font-size: 0.72rem;
  color: var(--on-surface-variant);
  margin-top: 4px;
}

/* ─── TOGGLE SWITCH ─── */
.toggle-switch { position: relative; width: 44px; height: 24px; cursor: pointer; display: inline-block; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute; inset: 0;
  background: var(--outline-variant);
  border-radius: 12px;
  transition: 0.2s;
}
.toggle-slider::before {
  content: '';
  position: absolute;
  width: 18px; height: 18px;
  background: #fff;
  border-radius: 50%;
  left: 3px; top: 3px;
  transition: 0.2s;
}
.toggle-switch input:checked + .toggle-slider { background: var(--secondary-container); }
.toggle-switch input:checked + .toggle-slider::before { transform: translateX(20px); }

/* ─── TABLE ─── */
.table-card {
  background: var(--surface-container-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.table-wrap { overflow-x: auto; }

.data-table { width: 100%; border-collapse: collapse; }
.data-table thead th {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--on-surface-variant);
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--outline-variant);
  background: var(--surface-container-low);
}
.data-table tbody td {
  font-size: 0.84rem;
  padding: 12px 16px;
  border-bottom: 1px solid var(--surface-container);
  vertical-align: middle;
}
.data-table tbody tr:hover { background: var(--surface-container-low); }
.data-table tbody tr:last-child td { border-bottom: none; }

/* ─── ALERTS ─── */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  margin-bottom: 14px;
  font-size: 0.82rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
}
.alert-success { background: #dcfce7; border: 1px solid var(--success); color: #166534; }
.alert-error { background: #ffdad6; border: 1px solid var(--error); color: #93000a; }

/* ─── MODAL ─── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(0,15,42,0.6);
  align-items: center;
  justify-content: center;
}
.modal-overlay.show { display: flex; }

.modal-box {
  background: var(--surface-container-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  max-width: 380px;
  width: 90%;
  text-align: center;
}
.modal-box i.warn { font-size: 2rem; color: var(--error); margin-bottom: 12px; }
.modal-box h4 { font-size: 1rem; margin-bottom: 6px; }
.modal-box p { font-size: 0.82rem; color: var(--on-surface-variant); margin-bottom: 20px; }

.modal-actions { display: flex; gap: 10px; justify-content: center; }
.modal-actions a,
.modal-actions button {
  flex: 1;
  padding: 10px;
  border-radius: var(--radius);
  font-family: 'Hanken Grotesk', sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  border: none;
}
.modal-cancel { background: var(--surface-container-low); border: 1px solid var(--outline-variant) !important; color: var(--on-surface); }
.modal-confirm { background: var(--error); color: var(--on-error); }

/* ─── EMPTY STATE ─── */
.empty-state { text-align: center; padding: 48px 20px; color: var(--on-surface-variant); }
.empty-state i { font-size: 2rem; display: block; margin-bottom: 12px; opacity: 0.3; }
.empty-state p { font-size: 0.88rem; }

/* ─── FOOTER ─── */
.site-footer {
  background: var(--primary);
  padding: 20px 0;
  text-align: center;
}
.site-footer p { font-size: 0.78rem; color: rgba(255,255,255,0.5); }
.site-footer strong { color: rgba(255,255,255,0.8); }

/* ─── RESPONSIVE ─── */
@media (max-width: 1024px) {
  :root { --section-padding: 60px; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  :root { --section-padding: 40px; }
}