/* ============================================
   DUTYCAM v3 · Universal Style Sheet
   Optimized for: Tecno, itel, Samsung, Motorola,
                  Infinix, Xiaomi, Realme, Oppo, Vivo,
                  Nokia, iPhone, Pixel, OnePlus
   ============================================ */

/* ============================================
   RESET & GLOBAL
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI',
    Roboto, Helvetica, Arial, sans-serif;
  -webkit-tap-highlight-color: transparent;   /* remove blue flash on mobile tap */
  -webkit-touch-callout: none;                 /* disable long-press menu */
}

/* Prevent zoom-on-tap on iOS inputs/buttons */
button, input, select, textarea {
  font-size: 16px;   /* iOS zooms if <16px */
  font-family: inherit;
}

:root {
  --bg: #0b0f1c;
  --surface: rgba(20, 28, 45, 0.75);
  --glass-border: rgba(255, 255, 255, 0.08);
  --primary: #2a6df4;
  --primary-glow: #2a6df480;
  --success: #0b9e6b;
  --danger: #d64545;
  --text: #eef2ff;
  --text-dim: #9aa6c2;
  --card-radius: 32px;
  --shadow: 0 20px 40px -12px rgba(0, 0, 0, 0.6);
  --transition: all 0.2s ease;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
}

html {
  -webkit-text-size-adjust: 100%;   /* prevent font scaling on rotate */
  scroll-behavior: smooth;
}

body {
  background: radial-gradient(circle at 20% 30%, #101b2e, #060a14);
  min-height: 100vh;
  min-height: 100dvh;   /* dynamic viewport (mobile keyboard friendly) */
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  padding-top: calc(24px + var(--safe-top));
  padding-bottom: calc(24px + var(--safe-bottom));
  padding-left: calc(24px + var(--safe-left));
  padding-right: calc(24px + var(--safe-right));
  color: var(--text);
  -webkit-user-select: none;
  user-select: none;
  overscroll-behavior: none;   /* prevent pull-to-refresh interfering */
}

/* ============================================
   GLASS MORPHISM
   ============================================ */
.glass {
  background: var(--surface);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow);
  border-radius: var(--card-radius);
}

.app-container {
  width: 100%;
  max-width: 1400px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

/* ============================================
   HEADER
   ============================================ */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 12px;
  flex-wrap: wrap;
  gap: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand i {
  font-size: 2rem;
  color: var(--primary);
  filter: drop-shadow(0 0 8px var(--primary-glow));
}

.brand h1 {
  font-size: 1.9rem;
  font-weight: 600;
  letter-spacing: -0.5px;
}

.badge {
  background: rgba(42, 109, 244, 0.2);
  border: 1px solid var(--primary);
  padding: 4px 12px;
  border-radius: 40px;
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  color: #b7ceff;
}

.live-timestamp {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 0, 0, 0.35);
  padding: 8px 20px;
  border-radius: 40px;
  border: 1px solid var(--glass-border);
  font-weight: 400;
  font-size: 1.1rem;
  letter-spacing: 0.5px;
  font-variant-numeric: tabular-nums;   /* stable clock width */
}

.live-timestamp i {
  color: var(--primary);
}

/* ============================================
   MAIN GRID
   ============================================ */
.main-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 24px;
}

/* ============================================
   CAMERA CARD
   ============================================ */
.camera-card {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 4px;
}

.card-header i {
  font-size: 1.6rem;
  color: var(--primary);
}

.card-header h2 {
  font-size: 1.2rem;
  font-weight: 500;
  letter-spacing: -0.2px;
  flex: 1;
}

.status-dot {
  background: #0b9e6b;
  padding: 4px 12px;
  border-radius: 40px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  box-shadow: 0 0 10px #0b9e6b80;
  color: #fff;
  transition: var(--transition);
}

.camera-view {
  position: relative;
  background: #03060c;
  border-radius: 24px;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  border: 1px solid #1f2a3f;
}

/* Fallback for old browsers without aspect-ratio support (Tecno/itel older Android) */
@supports not (aspect-ratio: 4 / 3) {
  .camera-view {
    height: 0;
    padding-bottom: 75%;   /* 4:3 */
  }
  .camera-view video {
    position: absolute;
    inset: 0;
  }
}

#videoElement {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transform: scaleX(-1);   /* mirror effect */
  background: #03060c;
  transition: opacity 0.15s ease;
}

.snapshot-badge {
  position: absolute;
  bottom: 12px;
  left: 12px;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 6px 14px;
  border-radius: 40px;
  font-size: 0.8rem;
  border: 1px solid var(--primary);
  color: white;
  display: flex;
  align-items: center;
  gap: 6px;
  animation: pulse 0.6s ease-in-out;
}

@keyframes pulse {
  0%   { transform: scale(0.9); opacity: 0; }
  50%  { transform: scale(1.05); opacity: 1; }
  100% { transform: scale(1); opacity: 1; }
}

.camera-controls {
  display: flex;
  gap: 14px;
  margin-top: 6px;
}

.camera-controls .btn {
  flex: 1;
}

.hint {
  color: var(--text-dim);
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: -6px;
  line-height: 1.4;
}

/* ============================================
   RIGHT COLUMN
   ============================================ */
.right-column {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.action-card {
  padding: 24px;
}

.action-buttons {
  display: flex;
  gap: 16px;
  margin: 18px 0 12px;
}

.action-buttons .btn {
  flex: 1;
  padding: 18px 8px;    /* bigger tap target on mobile */
  font-size: 1.1rem;
  font-weight: 500;
  justify-content: center;
}

.last-action {
  margin-top: 12px;
  background: rgba(0, 0, 0, 0.25);
  padding: 12px 16px;
  border-radius: 40px;
  font-size: 0.9rem;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 8px;
  border-left: 3px solid var(--primary);
  line-height: 1.4;
}

.last-action i {
  color: var(--primary);
  flex-shrink: 0;
}

/* ============================================
   LOGS CARD
   ============================================ */
.logs-card {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
  max-height: 360px;
}

.logs-list {
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;   /* smooth scroll on iOS */
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 8px;
  padding-right: 4px;
}

.logs-list::-webkit-scrollbar {
  width: 4px;
}

.logs-list::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: 10px;
}

.log-entry {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.03);
  padding: 12px 16px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.04);
  transition: var(--transition);
  font-size: 0.9rem;
  gap: 10px;
  flex-wrap: wrap;
}

.log-entry .log-type {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
}

.log-entry .log-type i {
  width: 18px;
}

.log-time {
  color: var(--text-dim);
  font-size: 0.8rem;
  letter-spacing: 0.2px;
  margin-left: auto;
  font-variant-numeric: tabular-nums;
}

.empty-log {
  color: var(--text-dim);
  text-align: center;
  padding: 28px 0;
  font-style: italic;
  font-size: 0.9rem;
}

.btn-icon {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: 1.1rem;
  cursor: pointer;
  padding: 8px 12px;
  border-radius: 12px;
  transition: var(--transition);
  min-width: 44px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-icon:hover {
  background: rgba(214, 69, 69, 0.2);
  color: #ff8a8a;
}

/* ============================================
   BUTTONS (touch-friendly, min 44px height)
   ============================================ */
.btn {
  border: none;
  padding: 14px 20px;
  min-height: 48px;                    /* WCAG tap target */
  border-radius: 60px;
  font-weight: 500;
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
  color: white;
  letter-spacing: 0.2px;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;          /* eliminate 300ms delay */
  text-align: center;
  line-height: 1.2;
}

.btn-primary {
  background: var(--primary);
  box-shadow: 0 6px 18px #2a6df450;
}

.btn-primary:hover,
.btn-primary:active {
  background: #1e5ad4;
  transform: translateY(-2px);
  box-shadow: 0 12px 24px #2a6df470;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--glass-border);
  color: var(--text);
}

.btn-secondary:hover,
.btn-secondary:active {
  background: rgba(255, 255, 255, 0.12);
}

.btn-success {
  background: var(--success);
  box-shadow: 0 6px 18px #0b9e6b50;
}

.btn-success:hover,
.btn-success:active {
  background: #0a8a5c;
  transform: translateY(-2px);
  box-shadow: 0 12px 24px #0b9e6b70;
}

.btn-danger {
  background: var(--danger);
  box-shadow: 0 6px 18px #d6454550;
}

.btn-danger:hover,
.btn-danger:active {
  background: #c03a3a;
  transform: translateY(-2px);
  box-shadow: 0 12px 24px #d6454570;
}

.btn:active {
  transform: scale(0.97);
}

/* ============================================
   FOOTER
   ============================================ */
.app-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 24px;
  background: rgba(0, 0, 0, 0.25);
  border-radius: 60px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border);
  color: var(--text-dim);
  font-size: 0.85rem;
  gap: 12px;
  flex-wrap: wrap;
}

.app-footer i {
  margin-right: 6px;
  color: var(--primary);
}

/* ============================================
   ONBOARDING OVERLAY (first visit)
   ============================================ */
#onboard {
  animation: fadeIn 0.3s ease;
}

#onboard > div {
  animation: slideUp 0.4s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to   { transform: translateY(0); opacity: 1; }
}

/* ============================================
   TEST VOICE BUTTON (special styling)
   ============================================ */
#testVoiceBtn {
  border: 1px dashed rgba(42, 109, 244, 0.5);
  background: rgba(42, 109, 244, 0.08);
  color: #b7ceff;
  transition: var(--transition);
}

#testVoiceBtn:hover,
#testVoiceBtn:active {
  background: rgba(42, 109, 244, 0.2);
  border-color: var(--primary);
  color: white;
}

#testVoiceBtn i {
  color: var(--primary);
}

/* ============================================
   RESPONSIVE — TABLET
   ============================================ */
@media (max-width: 900px) {
  .main-grid {
    grid-template-columns: 1fr;
  }
  .logs-card {
    max-height: 280px;
  }
  .app-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .live-timestamp {
    align-self: flex-end;
  }
}

/* ============================================
   RESPONSIVE — SMALL PHONES (Tecno, itel 5.5")
   ============================================ */
@media (max-width: 500px) {
  body {
    padding: 12px;
    padding-top: calc(12px + var(--safe-top));
    padding-bottom: calc(12px + var(--safe-bottom));
    align-items: flex-start;   /* top-align on small screens */
  }

  .app-container {
    gap: 16px;
  }

  .app-header {
    padding: 0;
  }

  .brand h1 {
    font-size: 1.5rem;
  }

  .brand i {
    font-size: 1.6rem;
  }

  .badge {
    font-size: 0.6rem;
    padding: 3px 10px;
  }

  .live-timestamp {
    padding: 6px 16px;
    font-size: 1rem;
    align-self: stretch;
    justify-content: center;
  }

  .camera-card,
  .action-card,
  .logs-card {
    padding: 16px;
    border-radius: 24px;
  }

  .card-header i {
    font-size: 1.3rem;
  }

  .card-header h2 {
    font-size: 1.05rem;
  }

  .camera-controls {
    flex-direction: column;
  }

  .action-buttons {
    flex-direction: column;
  }

  .action-buttons .btn {
    padding: 16px 8px;
    font-size: 1rem;
  }

  .logs-card {
    max-height: 300px;
  }

  .log-entry {
    padding: 10px 14px;
    font-size: 0.85rem;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .log-time {
    margin-left: 0;
    font-size: 0.75rem;
  }

  .app-footer {
    flex-direction: column;
    gap: 8px;
    align-items: center;
    text-align: center;
    padding: 14px 20px;
    font-size: 0.8rem;
  }

  #onboard > div {
    padding: 22px;
  }

  #onboard h2 {
    font-size: 1.2rem;
  }
}

/* ============================================
   RESPONSIVE — VERY SMALL (itel A-series 5")
   ============================================ */
@media (max-width: 360px) {
  .brand h1 {
    font-size: 1.2rem;
  }

  .badge {
    display: none;   /* save space on tiny screens */
  }

  .hint {
    font-size: 0.72rem;
  }

  .live-timestamp {
    font-size: 0.9rem;
    padding: 5px 12px;
  }

  .btn {
    padding: 12px 16px;
    font-size: 0.9rem;
    min-height: 44px;
  }

  .action-buttons .btn {
    padding: 14px 6px;
    font-size: 0.95rem;
  }
}

/* ============================================
   LANDSCAPE PHONE
   ============================================ */
@media (max-height: 500px) and (orientation: landscape) {
  body {
    align-items: flex-start;
  }

  .main-grid {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }

  .camera-card,
  .action-card,
  .logs-card {
    padding: 14px;
  }

  .logs-card {
    max-height: 180px;
  }

  .camera-view {
    aspect-ratio: 16 / 9;
  }
}

/* ============================================
   ACCESSIBILITY — reduced motion
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================
   HIGH CONTRAST / DARK MODE (Samsung)
   ============================================ */
@media (prefers-color-scheme: light) {
  /* App is designed dark — keep dark but ensure readability */
  body {
    background: radial-gradient(circle at 20% 30%, #101b2e, #060a14);
  }
}

/* ============================================
   FOCUS STATES (keyboard / accessibility)
   ============================================ */
.btn:focus-visible,
.btn-icon:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

/* ============================================
   PRINT (safety — hide UI if user prints)
   ============================================ */
@media print {
  .camera-card,
  .app-header,
  .app-footer,
  #onboard,
  .camera-controls,
  .action-buttons,
  #testVoiceBtn {
    display: none !important;
  }
  body {
    background: white;
    color: black;
    padding: 0;
  }
  .glass {
    background: white;
    border: 1px solid #ddd;
    box-shadow: none;
  }
  .log-entry {
    background: #f5f5f5;
    color: black;
  }
}