/* ===========================
   AB LINK SOLUTIONS – Style
   Version 1.0
=========================== */

:root {
  --col-bg: #0d1117;
  --col-surface: #161b22;
  --col-surface2: #1c2230;
  --col-border: #2a3444;
  --col-border-light: #364054;
  --col-primary: #00d4ff;
  --col-primary-dim: rgba(0,212,255,0.12);
  --col-primary-glow: rgba(0,212,255,0.3);
  --col-accent: #ff6b2b;
  --col-success: #00e5a0;
  --col-warn: #ffcc00;
  --col-text: #e6edf3;
  --col-text-secondary: #8b949e;
  --col-text-muted: #586070;
  --font-display: 'Rajdhani', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
  --font-body: 'IBM Plex Sans', sans-serif;
  --radius: 8px;
  --radius-lg: 14px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --transition: 0.18s cubic-bezier(0.4,0,0.2,1);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--col-bg);
  color: var(--col-text);
  font-family: var(--font-body), 'Noto Sans SC', sans-serif;
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
}

/* ── BILINGUAL LABEL ── */
.zh {
  display: block;
  font-family: 'Noto Sans SC', sans-serif;
  font-size: 0.72rem;
  font-weight: 400;
  color: var(--col-text-muted);
  letter-spacing: 0.02em;
  margin-top: 1px;
  line-height: 1.3;
}

label .zh {
  font-size: 0.7rem;
}

.meta-label .zh {
  display: block;
  font-size: 0.62rem;
  font-weight: 400;
  letter-spacing: 0.01em;
  color: rgba(0,212,255,0.65);
  margin-top: 1px;
  font-family: 'Noto Sans SC', sans-serif;
}

.check-label .zh {
  display: block;
  font-size: 0.66rem;
  font-weight: 400;
  color: var(--col-text-muted);
  margin-top: 1px;
  font-family: 'Noto Sans SC', sans-serif;
}

.sig-label .zh,
.photo-label .zh {
  display: block;
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.01em;
  color: rgba(0,212,255,0.65);
  margin-top: 1px;
  font-family: 'Noto Sans SC', sans-serif;
}

.card-header h2 .zh {
  display: block;
  font-family: 'Noto Sans SC', sans-serif;
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--col-text-secondary);
  letter-spacing: 0.02em;
  margin-top: 2px;
}

/* Print: hide .zh sub-labels to keep report clean — report.js handles its own bilingual output */
@media print {
  .zh { display: none !important; }
}

/* ── HEADER ── */
.site-header {
  background: var(--col-surface);
  border-bottom: 1px solid var(--col-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 20px rgba(0,0,0,0.5);
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px 20px;
}

.brand { display: flex; align-items: center; justify-content: space-between; }

.brand-logo { display: flex; align-items: center; gap: 14px; }

.logo-icon {
  width: 42px; height: 42px;
  color: var(--col-primary);
  flex-shrink: 0;
  filter: drop-shadow(0 0 8px var(--col-primary-glow));
}

.brand-text { display: flex; flex-direction: column; }

.brand-name {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--col-primary);
  line-height: 1.1;
  text-shadow: 0 0 20px var(--col-primary-glow);
}

.brand-tagline {
  font-size: 0.72rem;
  color: var(--col-text-secondary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-family: var(--font-mono);
}

.version-badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  background: var(--col-primary-dim);
  color: var(--col-primary);
  border: 1px solid rgba(0,212,255,0.25);
  padding: 3px 10px;
  border-radius: 100px;
  letter-spacing: 0.05em;
}

/* ── MAIN ── */
.main-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 20px 120px;
}

/* ── META BAR ── */
.meta-bar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  background: var(--col-surface);
  border: 1px solid var(--col-border);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  margin-bottom: 24px;
}

.meta-item { display: flex; flex-direction: column; gap: 4px; flex: 1; min-width: 160px; }

.meta-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--col-primary);
}

.meta-input {
  background: var(--col-surface2);
  border: 1px solid var(--col-border);
  border-radius: var(--radius);
  color: var(--col-text);
  padding: 10px 12px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}

.meta-input.mono { font-family: var(--font-mono); letter-spacing: 0.04em; }

.meta-input:focus {
  outline: none;
  border-color: var(--col-primary);
  box-shadow: 0 0 0 3px var(--col-primary-dim);
}

.meta-input option { background: var(--col-surface2); }

/* ── FORM GRID ── */
.form-grid { display: flex; flex-direction: column; gap: 20px; }

/* ── CARDS ── */
.card {
  background: var(--col-surface);
  border: 1px solid var(--col-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition);
}

.card:hover { border-color: var(--col-border-light); }

.card-header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 22px;
  border-bottom: 1px solid var(--col-border);
  background: linear-gradient(135deg, rgba(0,212,255,0.04) 0%, transparent 60%);
}

.section-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--col-primary);
  background: var(--col-primary-dim);
  border: 1px solid rgba(0,212,255,0.2);
  border-radius: 6px;
  padding: 3px 8px;
  letter-spacing: 0.05em;
}

.card-header h2 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--col-text);
}

.card-body { padding: 22px; display: flex; flex-direction: column; gap: 18px; }

/* ── FIELDS ── */
.field-group { display: flex; flex-direction: column; gap: 6px; }

.field-row.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

label {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--col-text-secondary);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

input[type="text"],
input[type="tel"],
input[type="date"],
textarea,
select {
  background: var(--col-surface2);
  border: 1px solid var(--col-border);
  border-radius: var(--radius);
  color: var(--col-text);
  padding: 11px 14px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
  resize: vertical;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--col-primary);
  box-shadow: 0 0 0 3px var(--col-primary-dim);
}

input::placeholder, textarea::placeholder { color: var(--col-text-muted); }

/* ── CHECKLIST ── */
.checklist-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}

.check-item {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  padding: 12px 16px;
  border: 1px solid var(--col-border);
  border-radius: var(--radius);
  background: var(--col-surface2);
  transition: all var(--transition);
  user-select: none;
}

.check-item:hover {
  border-color: var(--col-primary);
  background: var(--col-primary-dim);
}

.check-item input[type="checkbox"] { display: none; }

.check-box {
  width: 20px; height: 20px;
  border: 2px solid var(--col-border-light);
  border-radius: 4px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition);
  position: relative;
}

.check-item input:checked + .check-box {
  background: var(--col-success);
  border-color: var(--col-success);
}

.check-item input:checked + .check-box::after {
  content: '';
  width: 5px; height: 9px;
  border: 2px solid #0d1117;
  border-top: none; border-left: none;
  transform: rotate(45deg) translate(-1px, -1px);
  display: block;
}

.check-item input:checked ~ .check-label { color: var(--col-success); }

.check-label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--col-text);
  transition: color var(--transition);
}

/* ── PHOTOS ── */
.photo-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.photo-zone { display: flex; flex-direction: column; gap: 10px; }

.photo-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--col-primary);
}

.photo-upload-area {
  border: 2px dashed var(--col-border-light);
  border-radius: var(--radius);
  padding: 28px 16px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  background: var(--col-surface2);
}

.photo-upload-area:hover {
  border-color: var(--col-primary);
  background: var(--col-primary-dim);
}

.upload-icon { width: 36px; height: 36px; color: var(--col-text-muted); }

.photo-upload-area p {
  font-size: 0.82rem;
  color: var(--col-text-muted);
}

.photo-preview { display: flex; flex-wrap: wrap; gap: 8px; }

.photo-preview img {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--col-border);
}

/* ── SIGNATURES ── */
.signature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.signature-block { display: flex; flex-direction: column; gap: 10px; }

.sig-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--col-primary);
}

.canvas-wrap {
  position: relative;
  border: 1px solid var(--col-border);
  border-radius: var(--radius);
  background: #fff;
  overflow: hidden;
  cursor: crosshair;
}

.canvas-wrap canvas {
  display: block;
  width: 100%;
  height: 150px;
  touch-action: none;
}

.canvas-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ccc;
  font-size: 0.9rem;
  pointer-events: none;
  font-family: var(--font-body);
  font-style: italic;
}

.canvas-placeholder.hidden { display: none; }

.sig-actions { display: flex; justify-content: flex-end; }

.btn-clear-sig {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  background: none;
  border: 1px solid var(--col-border);
  color: var(--col-text-secondary);
  padding: 5px 14px;
  border-radius: 100px;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-clear-sig:hover {
  border-color: var(--col-accent);
  color: var(--col-accent);
}

/* ── ACTION BAR ── */
.action-bar {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: rgba(13,17,23,0.95);
  backdrop-filter: blur(16px);
  border-top: 1px solid var(--col-border);
  padding: 14px 24px;
  display: flex;
  gap: 10px;
  justify-content: space-between;
  flex-wrap: wrap;
  z-index: 200;
}

.action-group { display: flex; gap: 10px; flex-wrap: wrap; }

/* Buttons */
.btn {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 10px 18px;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn svg { width: 17px; height: 17px; flex-shrink: 0; }

.btn-draft {
  background: var(--col-surface2);
  border: 1px solid var(--col-border-light);
  color: var(--col-text);
}
.btn-draft:hover { border-color: var(--col-primary); color: var(--col-primary); }

.btn-clear {
  background: var(--col-surface2);
  border: 1px solid var(--col-border-light);
  color: var(--col-text-secondary);
}
.btn-clear:hover { border-color: var(--col-accent); color: var(--col-accent); }

.btn-print {
  background: var(--col-surface2);
  border: 1px solid var(--col-border-light);
  color: var(--col-text);
}
.btn-print:hover { border-color: var(--col-warn); color: var(--col-warn); }

.btn-pdf {
  background: rgba(255,107,43,0.12);
  border: 1px solid rgba(255,107,43,0.3);
  color: var(--col-accent);
}
.btn-pdf:hover { background: rgba(255,107,43,0.22); border-color: var(--col-accent); }

.btn-submit {
  background: linear-gradient(135deg, var(--col-primary) 0%, #0099cc 100%);
  color: #0d1117;
  border: none;
  box-shadow: 0 4px 16px rgba(0,212,255,0.3);
}
.btn-submit:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(0,212,255,0.45);
}
.btn-submit:active { transform: translateY(0); }

/* ── TOAST ── */
.toast {
  position: fixed;
  bottom: 90px;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: var(--col-surface);
  border: 1px solid var(--col-primary);
  color: var(--col-text);
  padding: 12px 24px;
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  box-shadow: 0 4px 24px rgba(0,0,0,0.5), 0 0 0 1px var(--col-primary-dim);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
  z-index: 300;
  white-space: nowrap;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ── RESPONSIVE ── */
@media (max-width: 700px) {
  .header-inner { padding: 12px 16px; }
  .brand-name { font-size: 1.1rem; }
  .main-container { padding: 16px 14px 120px; }
  .meta-bar { flex-direction: column; gap: 10px; }
  .meta-item { min-width: unset; }
  .field-row.two-col { grid-template-columns: 1fr; }
  .photo-row { grid-template-columns: 1fr; }
  .signature-row { grid-template-columns: 1fr; }
  .checklist-grid { grid-template-columns: 1fr 1fr; }
  .action-bar { padding: 10px 14px; }
  .btn { padding: 9px 14px; font-size: 0.82rem; }
  .btn span { display: none; }
}

@media (max-width: 420px) {
  .checklist-grid { grid-template-columns: 1fr; }
}

/* ── PRINT STYLES ── */
@media print {
  .site-header, .action-bar, .toast { display: none !important; }
  body { background: #fff; color: #000; }
  .main-container { padding: 0; max-width: 100%; }
  .card {
    border: 1px solid #ccc;
    break-inside: avoid;
    margin-bottom: 16px;
    background: #fff;
  }
  .card-header { background: #f5f5f5; }
  .card-header h2 { color: #000; }
  .section-num { color: #0070a8; background: #e8f4fb; border-color: #0070a8; }
  input, textarea, select { background: transparent; border: 1px solid #999; color: #000; }
  .meta-bar { background: #f5f5f5; border: 1px solid #ccc; }
  .meta-label { color: #0070a8; }
  .meta-input { background: transparent; border-bottom: 1px solid #ccc; border-top: none; border-left: none; border-right: none; border-radius: 0; }
  .photo-upload-area { display: none; }
  .canvas-wrap { background: #fff; border: 1px solid #ccc; }
  .check-item { background: #fafafa; border: 1px solid #ccc; }
  .check-label { color: #000; }
  .check-box { border-color: #999; }
  .btn-clear-sig { display: none; }
  .brand-name { color: #0070a8; text-shadow: none; }
  .brand-tagline { color: #555; }
}

/* Others specify field */
.others-field {
  animation: fadeIn 0.2s ease;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── DYNAMIC SECTION ── */
#dynamic-section { gap: 20px; }

.dyn-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.cctv-checklist {
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}

/* CCTV card accent */
#sec-cctv .card-header {
  background: linear-gradient(135deg, rgba(0,180,160,.07) 0%, transparent 60%);
}

@media (max-width: 700px) {
  .dyn-grid { grid-template-columns: 1fr; }
  .cctv-checklist { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 420px) {
  .cctv-checklist { grid-template-columns: 1fr; }
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--col-bg); }
::-webkit-scrollbar-thumb { background: var(--col-border-light); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--col-text-muted); }