/* ================================================================
   PlatePulse — Premium Traffic Intelligence UI
   ================================================================ */

:root {
  color-scheme: dark;

  /* ── Dark asphalt surfaces ── */
  --bg-0:     #05070A;
  --bg-1:     #090C11;
  --bg-2:     #0D1117;
  --bg-3:     #121820;
  --bg-4:     #171E28;
  --bg-hover: #1C2430;

  /* ── Text ── */
  --text-1: #E2E8F0;
  --text-2: #6B7A8D;
  --text-3: #323E4D;

  /* ── Amber — traffic signal ── */
  --amber:      #F59E0B;
  --amber-dim:  #92600A;
  --amber-soft: rgba(245, 158, 11, 0.08);
  --amber-glow: rgba(245, 158, 11, 0.18);
  --amber-ring: rgba(245, 158, 11, 0.28);

  /* ── Status ── */
  --green: #10B981;
  --red:   #EF4444;
  --blue:  #38BDF8;

  /* ── Borders ── */
  --border:       rgba(255, 255, 255, 0.06);
  --border-light: rgba(255, 255, 255, 0.1);
  --border-amber: rgba(245, 158, 11, 0.22);

  /* ── Radii ── */
  --r-xl:  16px;
  --r-lg:  12px;
  --r-md:   8px;
  --r-sm:   5px;
  --r-xs:   3px;

  /* ── Motion ── */
  --t:  200ms cubic-bezier(0.4, 0, 0.2, 1);
  --ts: 360ms cubic-bezier(0.4, 0, 0.2, 1);
  --tb: 480ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* ── Fonts ── */
  --font: 'Inter', system-ui, sans-serif;
  --mono: 'JetBrains Mono', 'IBM Plex Mono', monospace;

  --gap: clamp(16px, 2vw, 24px);
}

*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; }

body {
  margin: 0;
  font-family: var(--font);
  background-color: var(--bg-0);
  background-image:
    radial-gradient(ellipse at 18% 0%,  rgba(245, 158, 11, 0.05) 0%, transparent 50%),
    radial-gradient(ellipse at 82% 100%, rgba(245, 158, 11, 0.03) 0%, transparent 50%),
    radial-gradient(circle, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 30px 30px;
  color: var(--text-1);
  line-height: 1.5;
  letter-spacing: 0.01em;
  display: flex;
  flex-direction: column;
  font-size: 15px;
}

button, input { font: inherit; color: inherit; }
button { border: none; background: none; cursor: pointer; }

button:focus-visible, input:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

/* ── Noscript ── */
.noscript-banner {
  width: 100%;
  padding: 10px 16px;
  text-align: center;
  background: rgba(245, 158, 11, 0.12);
  border-bottom: 1px solid var(--border-amber);
  font-size: 0.875rem;
  font-family: var(--mono);
  letter-spacing: 0.04em;
}

/* ── Container ── */
.container {
  width: min(1800px, 92vw);
  margin: 0 auto;
}

/* ================================================================
   HEADER
   ================================================================ */
.app-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(5, 7, 10, 0.9);
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  border-bottom: 1px solid var(--border);
}

/* Amber scan line at bottom of header */
.app-header::after {
  content: '';
  position: absolute;
  bottom: -1px; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg,
    transparent 0%,
    var(--amber-dim) 25%,
    var(--amber) 50%,
    var(--amber-dim) 75%,
    transparent 100%
  );
  animation: headerScan 4s ease-in-out infinite;
  opacity: 0.6;
}

@keyframes headerScan {
  0%, 100% { opacity: 0.25; transform: scaleX(0.7); }
  50%       { opacity: 0.7;  transform: scaleX(1); }
}

.app-header .container {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 28px;
  padding: 14px 0;
}

/* ── Brand ── */
.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}

.brand-icon {
  width: 48px;
  height: 32px;
  border-radius: var(--r-sm);
  background: linear-gradient(135deg, #0D1117, #161E28);
  display: grid;
  place-items: center;
  border: 1px solid var(--border-amber);
  position: relative;
  overflow: hidden;
  transition: transform var(--t), box-shadow var(--t);
  flex-shrink: 0;
}

.brand-icon::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--amber-soft), transparent);
  opacity: 0;
  transition: opacity var(--t);
}

.brand:hover .brand-icon {
  transform: scale(1.04);
  box-shadow: 0 0 16px var(--amber-glow), 0 4px 12px rgba(0,0,0,0.4);
}

.brand:hover .brand-icon::before { opacity: 1; }

.brand-icon svg {
  width: 34px;
  height: 22px;
  position: relative;
  z-index: 1;
}

/* New logo SVG parts */
.lp-outer {
  fill: none;
  stroke: var(--amber);
  stroke-width: 1.2;
}

.lp-band {
  fill: rgba(245, 158, 11, 0.15);
  stroke: none;
}

.lp-band-fill {
  fill: rgba(245, 158, 11, 0.2);
}

.lp-char {
  fill: rgba(245, 158, 11, 0.55);
}

.lp-corner {
  stroke: var(--amber);
  stroke-width: 1.8;
  fill: none;
}

.brand-copy h1 {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: linear-gradient(135deg, var(--text-1) 40%, var(--amber) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.brand-copy p {
  margin: 2px 0 0;
  font-size: 0.6rem;
  color: var(--text-3);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-family: var(--mono);
}

/* ── Header metrics ── */
.header-meta {
  display: flex;
  justify-content: center;
  gap: 8px;
}

.metric {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 8px 14px;
  border-radius: var(--r-md);
  background: var(--bg-2);
  border: 1px solid var(--border);
  min-width: 108px;
  transition: border-color var(--t), background var(--t);
  cursor: default;
}

.metric:hover {
  border-color: var(--border-amber);
  background: var(--bg-3);
}

.metric .label {
  font-size: 0.57rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-3);
  font-family: var(--mono);
}

.metric strong {
  font-size: 0.875rem;
  font-weight: 600;
  font-family: var(--mono);
  color: var(--text-1);
  letter-spacing: 0.03em;
}

/* ── Header actions ── */
.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.api-indicator {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-2);
  transition: border-color var(--t);
}

.api-indicator.live  { border-color: rgba(16, 185, 129, 0.3); }
.api-indicator.error { border-color: rgba(239, 68, 68, 0.3); }

.api-indicator .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-3);
  transition: background var(--t), box-shadow var(--t);
  flex-shrink: 0;
}

.api-indicator.live .dot {
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
  animation: livePulse 2s ease-in-out infinite;
}

.api-indicator.error .dot {
  background: var(--red);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
}

@keyframes livePulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15); }
  50%       { box-shadow: 0 0 0 6px rgba(16, 185, 129, 0.05); }
}

.api-indicator .text {
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  color: var(--text-2);
  font-family: var(--mono);
  text-transform: uppercase;
}

.link-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--r-sm);
  background: var(--bg-2);
  border: 1px solid var(--border);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-2);
  font-family: var(--mono);
  transition: background var(--t), border-color var(--t), color var(--t);
}

.link-btn:hover {
  background: var(--amber-soft);
  border-color: var(--border-amber);
  color: var(--amber);
}

.link-btn svg {
  width: 14px; height: 14px;
  fill: none; stroke: currentColor; stroke-width: 1.5;
  transition: transform var(--t);
}

.link-btn:hover svg { transform: translateX(-2px); }

/* ================================================================
   MAIN
   ================================================================ */
.app-main {
  padding: clamp(28px, 3.5vw, 52px) 0 clamp(40px, 5vw, 72px);
  flex: 1;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.45fr);
  gap: var(--gap);
  align-items: start;
}

/* Evita coluna esquerda a encolher a zero em grelha minmax(0, 1fr) */
.input-panel {
  min-width: 0;
}

/* ── Panel ── */
.panel {
  background: var(--bg-1);
  border-radius: var(--r-xl);
  border: 1px solid var(--border);
  padding: var(--gap);
  display: flex;
  flex-direction: column;
  gap: 18px;
  position: relative;
  overflow: hidden;
  transition: border-color var(--ts);
}

/* Ambient amber top line on hover */
.panel::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--amber-ring), transparent);
  opacity: 0;
  transition: opacity var(--ts);
}

.panel:hover::before { opacity: 1; }
.panel:hover { border-color: rgba(255,255,255,0.09); }

/* ── Panel head ── */
.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  flex-wrap: wrap;
}

.panel-head h2 {
  margin: 0;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-3);
  font-family: var(--mono);
}

.subhead {
  margin: 4px 0 0;
  color: var(--text-3);
  font-size: 0.78rem;
  line-height: 1.5;
}

.panel-content {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* ── Input tabs ── */
.input-tabs {
  display: flex;
  gap: 3px;
  background: var(--bg-0);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 3px;
}

.input-tabs .tab {
  flex: 1;
  padding: 8px 12px;
  border-radius: calc(var(--r-md) - 1px);
  border: 1px solid transparent;
  color: var(--text-3);
  font-size: 0.67rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-family: var(--mono);
  transition: all var(--t);
  position: relative;
}

.input-tabs .tab:hover {
  color: var(--text-2);
  background: var(--bg-2);
}

.input-tabs .tab.active {
  background: var(--bg-3);
  border-color: var(--border-amber);
  color: var(--amber);
}

/* ── Tab panels ── */
.tab-panels {
  flex: 1;
  min-height: 0;
  min-width: 0;
}

.tab-panel { display: none; opacity: 0; transition: opacity var(--t); }
.tab-panel.active { opacity: 1; }
.tab-panel.samples.active {
  display: flex;
  flex-direction: column;
}
.tab-panel.upload.active, .tab-panel.camera.active { display: block; }

/* ── Sample grid ──
   Flex-wrap em vez de grid: evita que linhas implícitas sejam “partilhadas” em altura
   e achatem as miniaturas. O scroll fica só neste bloco (max-height + overflow-y). */
.sample-grid {
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  align-items: flex-start;
  justify-content: flex-start;
  gap: 10px;
  padding: 2px;
  min-width: 0;
  max-height: clamp(340px, 50vh, 540px);
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
  scrollbar-width: thin;
  scrollbar-color: rgba(245, 158, 11, 0.25) transparent;
}

.sample-grid::-webkit-scrollbar { width: 4px; }
.sample-grid::-webkit-scrollbar-thumb {
  background: rgba(245, 158, 11, 0.3);
  border-radius: 4px;
}

/* ── Sample card ── */
.sample-card {
  flex: 0 0 auto;
  width: clamp(120px, 13vw, 160px);
  max-width: 100%;
  background: var(--bg-2);
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 7px;
  padding: 7px;
  min-width: 0;
  box-sizing: border-box;
  cursor: pointer;
  transition: border-color var(--ts), transform var(--ts), box-shadow var(--ts);
  position: relative;
  overflow: hidden;
  animation: cardReveal 0.4s ease both;
}

/* Avoid animating opacity on the card — it hides nested images in some browsers. */
@keyframes cardReveal {
  from { transform: translateY(6px) scale(0.97); }
  to   { transform: translateY(0) scale(1); }
}

.sample-card:hover {
  border-color: var(--border-amber);
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(0,0,0,0.45), 0 0 0 1px var(--border-amber);
}

.sample-card.active {
  border-color: var(--amber);
  background: linear-gradient(160deg, rgba(245,158,11,0.07), var(--bg-2));
  box-shadow: 0 0 0 1px rgba(245,158,11,0.35), 0 8px 24px rgba(0,0,0,0.4);
}

/* Active checkmark */
.sample-card.active::after {
  content: '';
  position: absolute;
  top: 7px; right: 7px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 8px var(--amber-glow);
}

/* Proporção 4:3 — largura vem do card (fixa em clamp); altura segue o ratio. */
.sample-card .thumb {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  height: auto;
  flex-shrink: 0;
  border-radius: calc(var(--r-lg) - 2px);
  overflow: hidden;
  background: var(--bg-0);
  isolation: isolate;
}

.sample-card .thumb img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  z-index: 1;
  transition: transform var(--ts);
}

.sample-card:hover .thumb img { transform: scale(1.06); }

/* Subtle tint on active — keep below overlays, do not cover pixels fully */
.sample-card.active .thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 2;
  background: linear-gradient(135deg, transparent 55%, rgba(245, 158, 11, 0.06));
  pointer-events: none;
}

.sample-card .label {
  font-size: 0.62rem;
  letter-spacing: 0.07em;
  color: var(--text-2);
  font-family: var(--mono);
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
  padding: 0 2px 2px;
}

.sample-card.active .label { color: rgba(245,158,11,0.7); }

/* ── Upload dropzone ── */
.upload-dropzone {
  position: relative;
  border-radius: var(--r-lg);
  border: 1px dashed rgba(245, 158, 11, 0.18);
  background: var(--bg-2);
  min-height: 220px;
  display: grid;
  place-content: center;
  gap: 10px;
  text-align: center;
  padding: 32px 20px;
  transition: border-color var(--t), background var(--t), transform var(--t);
  cursor: pointer;
}

.upload-dropzone:hover {
  border-color: var(--amber-ring);
  background: rgba(245, 158, 11, 0.03);
  transform: translateY(-1px);
}

.upload-dropzone.dragover {
  border-color: var(--amber);
  background: var(--amber-soft);
  border-style: solid;
  transform: translateY(-2px);
}

.upload-dropzone input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.upload-dropzone .icon svg {
  width: 38px; height: 38px;
  fill: rgba(245, 158, 11, 0.45);
  transition: fill var(--t), transform var(--t);
}

.upload-dropzone:hover .icon svg {
  fill: rgba(245, 158, 11, 0.65);
  transform: translateY(-3px);
}

.upload-dropzone p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text-2);
}

.upload-dropzone small {
  color: var(--text-3);
  font-size: 0.72rem;
  font-family: var(--mono);
  letter-spacing: 0.06em;
}

/* ── Camera ── */
.camera-stage {
  border-radius: var(--r-lg);
  background: var(--bg-2);
  border: 1px solid var(--border);
  padding: 14px;
  display: grid;
  gap: 12px;
}

#cameraFeed {
  width: 100%;
  aspect-ratio: 16 / 9;
  max-height: 360px;
  border-radius: var(--r-md);
  background: #000;
  object-fit: contain;
  border: 1px solid var(--border);
  display: block;
}

.camera-actions { display: flex; gap: 10px; }
.camera-actions button { flex: 1; }

/* ── Shared action buttons ── */
.url-field button,
.predict-btn,
.camera-actions button {
  padding: 10px 20px;
  border-radius: var(--r-sm);
  background: var(--amber-soft);
  border: 1px solid var(--border-amber);
  color: var(--amber);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-family: var(--mono);
  transition: background var(--t), border-color var(--t), color var(--t),
              transform var(--t), box-shadow var(--t);
  position: relative;
  overflow: hidden;
}

/* Shimmer sweep on hover */
.url-field button::before,
.predict-btn::before,
.camera-actions button::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(245,158,11,0.12), transparent);
  transition: left 0.5s ease;
}

.url-field button:hover::before,
.predict-btn:hover::before,
.camera-actions button:not(:disabled):hover::before { left: 100%; }

.url-field button:hover,
.predict-btn:hover,
.camera-actions button:not(:disabled):hover {
  background: rgba(245, 158, 11, 0.16);
  border-color: rgba(245, 158, 11, 0.45);
  color: var(--text-1);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.12);
}

.url-field button:active,
.predict-btn:active,
.camera-actions button:not(:disabled):active {
  transform: translateY(0);
  box-shadow: none;
}

.camera-actions button:disabled { opacity: 0.3; cursor: not-allowed; }

.predict-btn {
  padding: 0 24px;
  height: 38px;
  white-space: nowrap;
}

.predict-btn[aria-busy="true"] { opacity: 0.55; cursor: progress; }

/* ── Result controls ── */
.result-controls {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-wrap: nowrap;
}

.runtime-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 12px;
  height: 38px;
  border-radius: var(--r-sm);
  background: var(--bg-2);
  border: 1px solid var(--border);
  font-family: var(--mono);
  color: var(--text-3);
  transition: border-color var(--t);
  white-space: nowrap;
}

.runtime-chip span {
  font-size: 0.58rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.runtime-chip::before {
  content: '';
  width: 1px;
  height: 16px;
  background: var(--border);
  flex-shrink: 0;
  display: none;
}

.runtime-chip strong {
  font-size: 0.82rem;
  color: var(--text-1);
  font-weight: 500;
  letter-spacing: 0.04em;
}

/* ── Result stage ── */
.result-stage {
  position: relative;
  flex: 1;
  min-height: 0;
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
  background: var(--bg-0);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Scanning beam — only visible when loading */
.result-stage.is-loading::after {
  content: '';
  position: absolute;
  left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--amber), rgba(255,220,120,0.8), var(--amber), transparent);
  animation: scanBeam 1.6s cubic-bezier(0.4, 0, 0.6, 1) infinite;
  z-index: 4;
  pointer-events: none;
  filter: drop-shadow(0 0 6px var(--amber));
}

@keyframes scanBeam {
  0%   { top: 0%;   opacity: 0; }
  5%   { opacity: 1; }
  92%  { opacity: 1; }
  100% { top: 100%; opacity: 0; }
}

/* Progress bar — thin loader stripe at top */
.progress-bar {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: rgba(245, 158, 11, 0.1);
  overflow: hidden;
  z-index: 5;
}

.progress-bar::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, var(--amber), transparent);
  animation: progressSlide 0.9s linear infinite;
}

@keyframes progressSlide {
  0%   { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.result-stage.is-loading .result-figure { opacity: 0.25; }

/* ── Result figure ── */
.result-figure {
  position: relative;
  width: 100%;
  min-height: clamp(260px, 38vh, 500px);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin: 0;
  transition: opacity var(--ts);
}

/* Corner brackets — targeting frame effect */
/* Top-left */
.result-figure::before {
  content: '';
  position: absolute;
  top: 12px; left: 12px;
  width: 22px; height: 22px;
  border-top: 2px solid var(--amber);
  border-left: 2px solid var(--amber);
  pointer-events: none;
  z-index: 3;
  opacity: 0.5;
  transition: opacity var(--ts), transform var(--ts);
}

/* Bottom-right */
.result-figure::after {
  content: '';
  position: absolute;
  bottom: 12px; right: 12px;
  width: 22px; height: 22px;
  border-bottom: 2px solid var(--amber);
  border-right: 2px solid var(--amber);
  pointer-events: none;
  z-index: 3;
  opacity: 0.5;
  transition: opacity var(--ts), transform var(--ts);
}

/* Top-right via scan-frame */
.scan-frame {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 3;
}

.scan-frame::before {
  content: '';
  position: absolute;
  top: 12px; right: 12px;
  width: 22px; height: 22px;
  border-top: 2px solid var(--amber);
  border-right: 2px solid var(--amber);
  opacity: 0.5;
  transition: opacity var(--ts);
}

.scan-frame::after {
  content: '';
  position: absolute;
  bottom: 12px; left: 12px;
  width: 22px; height: 22px;
  border-bottom: 2px solid var(--amber);
  border-left: 2px solid var(--amber);
  opacity: 0.5;
  transition: opacity var(--ts);
}

/* Corner brackets brighten when image is loaded */
.result-stage:has(#resultImage[src]:not([src=""])) .result-figure::before,
.result-stage:has(#resultImage[src]:not([src=""])) .result-figure::after,
.result-stage:has(#resultImage[src]:not([src=""])) .scan-frame::before,
.result-stage:has(#resultImage[src]:not([src=""])) .scan-frame::after {
  opacity: 0.8;
}

/* Animate brackets when scanning */
.result-stage.is-loading .result-figure::before {
  animation: bracketPulse 0.8s ease-in-out infinite alternate;
}
.result-stage.is-loading .result-figure::after {
  animation: bracketPulse 0.8s ease-in-out infinite alternate 0.2s;
}
.result-stage.is-loading .scan-frame::before {
  animation: bracketPulse 0.8s ease-in-out infinite alternate 0.1s;
}
.result-stage.is-loading .scan-frame::after {
  animation: bracketPulse 0.8s ease-in-out infinite alternate 0.3s;
}

@keyframes bracketPulse {
  from { opacity: 0.5; }
  to   { opacity: 1;   box-shadow: 0 0 8px var(--amber-glow); }
}

#resultImage {
  width: 100%;
  height: auto;
  max-height: clamp(260px, 55vh, 620px);
  object-fit: contain;
  display: block;
  position: relative;
  z-index: 1;
}

/* Empty state illustration */
.result-empty-state {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  pointer-events: none;
  z-index: 2;
  transition: opacity var(--ts);
}

/* Hide empty state when image is loaded */
.result-stage:has(#resultImage[src]:not([src=""])) .result-empty-state {
  opacity: 0;
}

.result-empty-state svg {
  width: 80px;
  height: 56px;
  opacity: 0.18;
}

.es-plate  { fill: none; stroke: var(--text-2); stroke-width: 1.5; }
.es-band   { fill: rgba(255,255,255,0.05); }
.es-band-fill { fill: rgba(255,255,255,0.07); }
.es-char   { fill: rgba(255,255,255,0.15); }
.es-corner { fill: none; stroke: var(--amber); stroke-width: 2; opacity: 0.7; }

.result-empty-state p {
  margin: 0;
  font-size: 0.78rem;
  color: var(--text-3);
  text-align: center;
  max-width: 24ch;
  font-family: var(--mono);
  letter-spacing: 0.04em;
  line-height: 1.6;
}

/* ── URL field ── */
.url-field { display: flex; gap: 10px; }

.url-field input {
  flex: 1;
  padding: 10px 14px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border);
  background: var(--bg-2);
  color: var(--text-1);
  transition: border-color var(--t);
}

.url-field input:focus-visible {
  border-color: var(--border-amber);
  outline: none;
  box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.1);
}

/* ================================================================
   INSIGHTS
   ================================================================ */
.insights {
  margin-top: clamp(28px, 3.5vw, 48px);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
}

.insight-card {
  border-radius: var(--r-lg);
  background: var(--bg-1);
  border: 1px solid var(--border);
  padding: 18px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  transition: border-color var(--ts), transform var(--ts), box-shadow var(--ts);
  position: relative;
  overflow: hidden;
}

.insight-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--amber-ring), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--ts);
}

.insight-card:hover {
  border-color: var(--border-amber);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.4);
}

.insight-card:hover::before { transform: scaleX(1); }

.insight-card .icon {
  width: 38px; height: 38px;
  border-radius: var(--r-md);
  background: var(--amber-soft);
  border: 1px solid var(--border-amber);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.insight-card .icon svg {
  width: 18px; height: 18px;
  fill: none;
  stroke: var(--amber);
  stroke-width: 1.8;
}

.insight-card h3 {
  margin: 0;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-1);
  letter-spacing: 0.03em;
}

.insight-card p {
  margin: 5px 0 0;
  color: var(--text-2);
  font-size: 0.78rem;
  line-height: 1.55;
}

/* ================================================================
   PROJECT OVERVIEW
   ================================================================ */
.project-overview {
  margin-top: clamp(28px, 3.5vw, 48px);
  padding: clamp(20px, 2.5vw, 28px);
  border-radius: var(--r-xl);
  background: var(--bg-1);
  border: 1px solid var(--border);
}

.overview-header {
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
}

.overview-header h2 {
  margin: 0;
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-3);
  font-family: var(--mono);
}

.overview-header p {
  margin: 0;
  color: var(--text-3);
  font-size: 0.78rem;
  line-height: 1.5;
}

.overview-subheading {
  margin: 1.25rem 0 0.5rem;
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--amber-dim);
  font-family: var(--mono);
}

.overview-subheading:first-of-type { margin-top: 0; }

.overview-about {
  margin: 0;
  max-width: 64ch;
  line-height: 1.65;
  color: var(--text-2);
  font-size: 0.875rem;
}

.overview-bv-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.overview-bv-card {
  padding: 16px;
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
  background: var(--bg-2);
  transition: border-color var(--t);
  position: relative;
  overflow: hidden;
}

.overview-bv-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 2px; height: 100%;
  background: linear-gradient(180deg, var(--amber), transparent);
  opacity: 0;
  transition: opacity var(--ts);
}

.overview-bv-card:hover { border-color: var(--border-amber); }
.overview-bv-card:hover::before { opacity: 1; }

.overview-bv-card h4 {
  margin: 0 0 6px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-1);
  line-height: 1.3;
}

.overview-bv-card p {
  margin: 0;
  font-size: 0.8rem;
  line-height: 1.55;
  color: var(--text-2);
}

/* ================================================================
   FOOTER
   ================================================================ */
.app-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-1);
  padding: 16px 0;
  font-size: 0.68rem;
  color: var(--text-3);
}

.app-footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.footer-note {
  margin: 0;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-family: var(--mono);
}

.footer-nav {
  display: inline-flex;
  gap: 8px;
  align-items: center;
}

.footer-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-3);
  text-decoration: none;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  font-family: var(--mono);
  transition: all var(--t);
}

.footer-link svg { width: 14px; height: 14px; fill: currentColor; }

.footer-link:hover {
  border-color: var(--border-amber);
  background: var(--amber-soft);
  color: var(--amber);
}

/* ================================================================
   PRELOADER — minimal
   ================================================================ */
.preloader {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: var(--bg-0);
  z-index: 40;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}

.preloader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.preloader-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  animation: preloaderFadeIn 0.5s ease both;
}

@keyframes preloaderFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.preloader-logo svg {
  width: 64px;
  height: 42px;
  display: block;
}

.preloader-name {
  margin: 0;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  background: linear-gradient(135deg, var(--text-1) 30%, var(--amber) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.preloader-bar {
  width: 120px;
  height: 2px;
  border-radius: 2px;
  background: var(--bg-3);
  overflow: hidden;
}

.preloader-bar-fill {
  height: 100%;
  width: 40%;
  border-radius: 2px;
  background: var(--amber);
  animation: barSlide 1.2s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

@keyframes barSlide {
  0%   { transform: translateX(-150%); opacity: 0.6; }
  50%  { opacity: 1; }
  100% { transform: translateX(350%); opacity: 0.6; }
}

.preloader-label {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-3);
}

/* ================================================================
   TOAST NOTIFICATIONS — Premium slide-in
   ================================================================ */
.toast-stack {
  position: fixed;
  top: 20px;
  right: 20px;
  display: grid;
  gap: 10px;
  z-index: 50;
  pointer-events: none;
  width: 320px;
}

.toast {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 16px;
  border-radius: var(--r-lg);
  background: #101419;
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--text-1);
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  box-shadow: 0 8px 32px rgba(0,0,0,0.7), 0 2px 8px rgba(0,0,0,0.4);
  opacity: 0;
  transform: translateX(calc(100% + 24px));
  transition: opacity 0.3s ease, transform 0.4s cubic-bezier(0.34, 1.3, 0.64, 1);
  pointer-events: auto;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(12px);
}

/* Colored left accent bar */
.toast::before {
  content: '';
  position: absolute;
  top: 0; left: 0; bottom: 0;
  width: 3px;
  border-radius: 3px 0 0 3px;
  background: var(--amber);
}

/* Icon dot */
.toast::after {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--amber);
  flex-shrink: 0;
  box-shadow: 0 0 8px var(--amber-glow);
}

.toast[data-variant="error"]::before  { background: var(--red); }
.toast[data-variant="error"]::after   { background: var(--red); box-shadow: 0 0 8px rgba(239,68,68,0.4); }
.toast[data-variant="success"]::before { background: var(--green); }
.toast[data-variant="success"]::after  { background: var(--green); box-shadow: 0 0 8px rgba(16,185,129,0.4); }

.toast.is-visible {
  opacity: 1;
  transform: translateX(0);
}

/* ================================================================
   LIGHTBOX
   ================================================================ */
.lightbox {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  z-index: 60;
  animation: fadeIn 0.25s ease;
}

.lightbox[hidden] { display: none; }

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

.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(3, 4, 6, 0.93);
  backdrop-filter: blur(20px);
}

.lightbox-modal {
  position: relative;
  background: #0D1117;
  border-radius: var(--r-xl);
  border: 1px solid var(--border-amber);
  padding: 20px;
  max-width: min(92vw, 960px);
  max-height: min(90vh, 700px);
  display: grid;
  gap: 12px;
  box-shadow:
    0 0 80px rgba(245, 158, 11, 0.06),
    0 40px 80px rgba(0,0,0,0.85);
  animation: modalIn 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  overflow: hidden;
}

/* Corner brackets on lightbox */
.lightbox-modal::before {
  content: '';
  position: absolute;
  top: 10px; left: 10px;
  width: 18px; height: 18px;
  border-top: 2px solid var(--amber);
  border-left: 2px solid var(--amber);
  pointer-events: none;
  z-index: 1;
  opacity: 0.6;
}

.lightbox-modal::after {
  content: '';
  position: absolute;
  bottom: 10px; right: 10px;
  width: 18px; height: 18px;
  border-bottom: 2px solid var(--amber);
  border-right: 2px solid var(--amber);
  pointer-events: none;
  z-index: 1;
  opacity: 0.6;
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.92) translateY(10px); }
  to   { opacity: 1; transform: scale(1)    translateY(0); }
}

.lightbox-modal img {
  width: 100%;
  height: auto;
  max-height: 580px;
  object-fit: contain;
  border-radius: var(--r-lg);
  background: #000;
  display: block;
}

.lightbox-modal figcaption {
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
  font-family: var(--mono);
  text-align: center;
}

.lightbox-close {
  position: absolute;
  top: 14px; right: 14px;
  width: 32px; height: 32px;
  border-radius: var(--r-sm);
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(13, 17, 23, 0.9);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: border-color var(--t), background var(--t);
  z-index: 2;
}

.lightbox-close svg path {
  stroke: var(--text-2);
  stroke-width: 1.6;
  stroke-linecap: round;
}

.lightbox-close:hover {
  border-color: var(--border-amber);
  background: var(--amber-soft);
}

/* ================================================================
   SCROLLBARS
   ================================================================ */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: rgba(245, 158, 11, 0.2);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover { background: rgba(245, 158, 11, 0.35); }

* { scrollbar-width: thin; scrollbar-color: rgba(245,158,11,0.2) transparent; }

::selection { background: rgba(245, 158, 11, 0.22); color: var(--text-1); }

/* ================================================================
   FORM ELEMENTS
   ================================================================ */
input, textarea, select {
  appearance: none;
  -webkit-appearance: none;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  color: var(--text-1);
  padding: 8px 12px;
  font: inherit;
}

input:focus, textarea:focus, select:focus {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
  border-color: var(--amber);
}

input::placeholder, textarea::placeholder { color: var(--text-3); }

*:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

/* ================================================================
   RESPONSIVE
   ================================================================ */
@media (max-width: 1200px) {
  .layout { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .overview-bv-grid { grid-template-columns: 1fr; }
}

@media (max-width: 980px) {
  .app-header .container {
    grid-template-columns: 1fr;
    gap: 14px;
    text-align: center;
    padding: 16px 0;
  }
  .header-meta { justify-content: center; }
  .header-actions { justify-content: center; }
  .brand { justify-content: center; }
  .layout { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .app-main { padding: 24px 0 40px; }
  .panel { padding: 16px; border-radius: var(--r-lg); }
  .camera-actions { flex-direction: column; }
  .app-footer .container { flex-direction: column; text-align: center; }
  .footer-nav { justify-content: center; }
  .toast-stack { width: calc(100vw - 32px); right: 16px; }
}