@font-face {
  font-family: "PortalKai";
  src: url("./fonts/portal-kai.v1.3.0.woff2") format("woff2");
  font-display: swap;
}

@font-face {
  font-family: "PortalText";
  src: url("./fonts/portal-text.v1.3.0.woff2") format("woff2");
  font-display: swap;
}

:root {
  --bg: #08111f;
  --card: #101b30;
  --card-2: #18243c;
  --text: #eef4ff;
  --muted: #9aa9bf;
  --line: rgba(148, 163, 184, 0.22);
  --line-strong: rgba(148, 163, 184, 0.38);
  --accent: #65b4ff;
  --accent-strong: #2778f2;
  --accent-soft: rgba(96, 165, 250, 0.14);
  --success: #34d399;
  --warning: #fbbf24;
  --error: #fb7185;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
  --app-emphasis-font: "PortalKai", "STKaiti", "KaiTi", serif;
  --app-text-font: "PortalText", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }

html { color-scheme: dark; }

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100svh;
  color: var(--text);
  font-family: var(--app-text-font);
  background:
    radial-gradient(circle at top left, rgba(96, 165, 250, 0.22), transparent 34rem),
    radial-gradient(circle at bottom right, rgba(37, 99, 235, 0.18), transparent 28rem),
    var(--bg);
}

button,
textarea { font: inherit; }

button,
a { -webkit-tap-highlight-color: transparent; }

.page-shell {
  width: min(1040px, calc(100vw - 32px));
  min-height: 100vh;
  min-height: 100svh;
  margin: 0 auto;
  display: grid;
  place-items: center;
  padding: 32px 0;
}

.hero-card,
.tool-card {
  width: 100%;
  background: linear-gradient(180deg, rgba(17, 28, 50, 0.97), rgba(10, 18, 34, 0.96));
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
  padding: clamp(24px, 4vw, 48px);
  backdrop-filter: blur(22px);
}

.hero-card { max-width: 880px; }
.tool-card { max-width: 920px; }

.top-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}
.top-nav-links {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
}
.top-nav a {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
}
.top-nav a:hover { color: var(--text); }

.portal-link {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-family: var(--app-emphasis-font);
  font-size: 14px;
  font-weight: 650;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
}

.portal-link:hover { color: var(--accent); }

.top-nav .portal-link { color: var(--text); }

.top-nav .portal-link:hover { color: var(--accent); }

.portal-link-landing { margin-bottom: 28px; }

.portal-mark {
  display: grid;
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  grid-template-columns: repeat(2, 7px);
  grid-template-rows: repeat(2, 7px);
  gap: 2px;
}

.portal-mark span {
  display: block;
  border-radius: 50%;
  background: currentColor;
}

.portal-mark span:nth-child(2) { border-radius: 3px; }

.portal-mark span:nth-child(3) {
  width: 16px;
  height: 5px;
  grid-column: 1 / 3;
  border-radius: 999px;
}

.tool-home-link { white-space: nowrap; }

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 750;
}

h1 {
  font-family: var(--app-emphasis-font);
  margin: 0;
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.lead {
  margin: 18px 0 0;
  max-width: 760px;
  color: var(--muted);
  line-height: 1.72;
  font-size: 16px;
}

.choice-grid {
  margin-top: 32px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.choice-card {
  min-height: 220px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 14px;
  padding: 24px;
  border-radius: 22px;
  background: rgba(24, 36, 60, 0.86);
  border: 1px solid var(--line);
  color: var(--text);
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.choice-card:hover {
  transform: translateY(-3px);
  border-color: rgba(96, 165, 250, 0.7);
  background: rgba(30, 45, 76, 0.96);
}

.choice-icon { font-size: 42px; }
.choice-title {
  font-family: var(--app-emphasis-font);
  font-size: 24px;
  font-weight: 800;
}
.choice-text { color: var(--muted); line-height: 1.65; }

.note {
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.scanner-frame {
  position: relative;
  margin-top: 28px;
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: #020617;
  isolation: isolate;
}

.scanner-frame.wide { aspect-ratio: 16 / 9; }

video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  background: #020617;
}

.scan-mask {
  pointer-events: none;
  position: absolute;
  inset: 10%;
  border: 2px solid rgba(96, 165, 250, 0.82);
  border-radius: 20px;
  box-shadow: 0 0 0 999px rgba(2, 6, 23, 0.20);
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.controls {
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

button {
  min-height: 48px;
  border: 1px solid transparent;
  border-radius: 14px;
  padding: 13px 18px;
  background: var(--accent-strong);
  color: white;
  font-weight: 760;
  cursor: pointer;
  min-width: 140px;
  transition: transform 140ms ease, filter 140ms ease, opacity 140ms ease;
}

button:hover:not(:disabled) { filter: brightness(1.08); }
button:active:not(:disabled) { transform: scale(0.985); }

button.secondary {
  background: rgba(148, 163, 184, 0.13);
  border-color: var(--line);
  color: var(--text);
}

button:disabled {
  opacity: 0.42;
  cursor: not-allowed;
}

.result-panel {
  margin-top: 24px;
  padding: 18px;
  border-radius: 20px;
  background: rgba(24, 36, 60, 0.58);
  border: 1px solid var(--line);
}

label {
  display: block;
  margin-bottom: 10px;
  font-size: 14px;
  color: var(--muted);
}

textarea {
  width: 100%;
  min-height: 92px;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px;
  background: rgba(2, 6, 23, 0.54);
  color: var(--text);
  font: 15px/1.6 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  outline: none;
}

textarea:focus { border-color: rgba(96, 165, 250, 0.7); }

.status {
  margin: 12px 0 14px;
  color: var(--muted);
  line-height: 1.6;
  font-size: 14px;
}

.status[data-type="success"] { color: var(--success); }
.status[data-type="warning"] { color: var(--warning); }
.status[data-type="error"] { color: var(--error); }

/* Mobile scanner */
.mobile-page {
  width: min(1180px, calc(100vw - 24px));
  align-items: start;
  padding-top: max(12px, env(safe-area-inset-top));
  padding-bottom: max(12px, env(safe-area-inset-bottom));
}

.mobile-tool-card {
  max-width: 1120px;
  padding: clamp(18px, 3vw, 34px);
}

.tool-header {
  display: grid;
  grid-template-columns: minmax(110px, auto) minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}

.tool-header .top-nav { margin: 0; }
.tool-header h1 {
  font-family: var(--app-text-font);
  font-size: clamp(28px, 4.2vw, 46px);
  font-weight: 750;
  letter-spacing: -0.02em;
}
.tool-header .lead { margin-top: 12px; max-width: 800px; }

.scanner-workspace {
  margin-top: 24px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 360px);
  gap: clamp(16px, 3vw, 28px);
  align-items: start;
}

.scanner-column { min-width: 0; }

.camera-frame {
  width: min(100%, 560px);
  max-height: min(56svh, 440px);
  margin: 0 auto;
  aspect-ratio: 4 / 3;
  border-radius: 22px;
}

.camera-frame video { object-fit: cover; }

.camera-frame .scan-mask {
  inset: 12%;
  border-radius: 18px;
}

.scanner-hud {
  position: absolute;
  z-index: 3;
  inset: 12px 12px auto;
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
}

.camera-state,
.preview-index {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 6px 10px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  background: rgba(2, 6, 23, 0.72);
  color: rgba(255, 255, 255, 0.92);
  font-size: 12px;
  font-weight: 720;
  letter-spacing: 0.02em;
  backdrop-filter: blur(12px);
}

.camera-state::before {
  content: "";
  width: 7px;
  height: 7px;
  margin-right: 7px;
  border-radius: 50%;
  background: var(--muted);
}

.camera-frame.is-scanning .camera-state::before {
  background: var(--success);
  box-shadow: 0 0 0 5px rgba(52, 211, 153, 0.14);
}

.preview-index {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  color: white;
  background: rgba(24, 119, 242, 0.82);
  border-color: rgba(147, 197, 253, 0.42);
}

.scan-update-flash {
  pointer-events: none;
  position: absolute;
  z-index: 2;
  inset: 0;
  opacity: 0;
  background: radial-gradient(circle at center, rgba(52, 211, 153, 0.24), transparent 58%);
}

.scan-update-flash.is-visible { animation: update-flash 900ms ease-out; }

.camera-frame.has-update .scan-mask {
  border-color: var(--success);
  box-shadow: 0 0 0 999px rgba(2, 6, 23, 0.16), 0 0 28px rgba(52, 211, 153, 0.42);
}

.compact-controls {
  width: min(100%, 560px);
  margin: 12px auto 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.compact-controls button { width: 100%; min-width: 0; }

.result-column {
  margin: 0;
  position: sticky;
  top: max(12px, env(safe-area-inset-top));
  padding: 18px;
}

.result-heading {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 14px;
}

.result-kicker {
  margin: 0 0 5px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.result-heading h2 {
  margin: 0;
  font-size: 24px;
  letter-spacing: -0.02em;
}

.result-time {
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}

.update-notice {
  margin-bottom: 14px;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(2, 6, 23, 0.38);
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.update-notice[data-state="waiting"] {
  border-color: rgba(96, 165, 250, 0.28);
  color: var(--accent);
}

.update-notice[data-state="updated"] {
  border-color: rgba(52, 211, 153, 0.44);
  background: rgba(52, 211, 153, 0.11);
  color: var(--success);
  animation: notice-pop 500ms ease-out;
}

.result-column textarea {
  min-height: 132px;
  resize: none;
}

.result-column > button { width: 100%; }

@keyframes update-flash {
  0% { opacity: 0; }
  18% { opacity: 1; }
  100% { opacity: 0; }
}

@keyframes notice-pop {
  0% { transform: translateY(-4px); opacity: 0.4; }
  100% { transform: translateY(0); opacity: 1; }
}

@media (max-width: 820px) {
  .mobile-page { width: min(100% - 16px, 760px); }
  .mobile-tool-card { border-radius: 22px; }
  .tool-header { grid-template-columns: 1fr; gap: 4px; }
  .tool-header .top-nav { margin-bottom: 6px; }
  .tool-header .lead { font-size: 14px; line-height: 1.55; }
  .scanner-workspace { margin-top: 18px; grid-template-columns: 1fr; gap: 16px; }
  .camera-frame { width: min(100%, 500px); max-height: min(45svh, 360px); }
  .result-column { position: static; width: min(100%, 500px); margin: 0 auto; }
}

@media (max-width: 720px) {
  .page-shell { width: min(100% - 20px, 1040px); padding: 10px 0; }
  .hero-card, .tool-card { border-radius: 22px; padding: 22px; }
  .choice-grid { grid-template-columns: 1fr; }
  .choice-card { min-height: 180px; }
  .scanner-frame:not(.camera-frame), .scanner-frame.wide { aspect-ratio: 3 / 4; }
  .controls:not(.compact-controls) button { width: 100%; }

  .mobile-page {
    width: 100%;
    padding-left: max(8px, env(safe-area-inset-left));
    padding-right: max(8px, env(safe-area-inset-right));
  }
  .mobile-tool-card { padding: 16px; }
  .tool-header h1 { font-size: clamp(26px, 8vw, 36px); }
  .camera-frame {
    width: min(100%, 430px);
    max-height: min(42svh, 330px);
    aspect-ratio: 4 / 3;
  }
  .camera-frame .scan-mask { inset: 10%; }
}

@media (max-width: 430px) {
  .mobile-tool-card { border-radius: 18px; padding: 14px; }
  .tool-header .lead { margin-top: 10px; }
  .scanner-workspace { margin-top: 14px; }
  .camera-frame { max-height: min(39svh, 280px); }
  .scanner-hud { inset: 8px 8px auto; }
  .camera-state { max-width: 54%; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .preview-index { padding-inline: 9px; }
  .compact-controls { gap: 8px; }
  .compact-controls button { min-height: 44px; padding-inline: 10px; }
  .result-column { padding: 14px; }
  .result-column textarea { min-height: 104px; }
}

@media (orientation: landscape) and (max-height: 560px) {
  .mobile-page { padding-block: 6px; }
  .mobile-tool-card { padding: 12px 14px; }
  .tool-header .lead { display: none; }
  .scanner-workspace {
    margin-top: 10px;
    grid-template-columns: minmax(0, 1fr) minmax(260px, 34vw);
    gap: 12px;
  }
  .camera-frame { max-height: calc(100svh - 150px); }
  .compact-controls { margin-top: 8px; }
  .result-column { position: static; max-height: calc(100svh - 86px); overflow: auto; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}