@font-face {
  font-family: 'Mona Sans';
  font-style: normal;
  font-display: swap;
  font-weight: 200 900;
  src: url('./fonts/mona-sans-normal.woff2') format('woff2-variations');
}

@font-face {
  font-family: 'Mona Sans';
  font-style: italic;
  font-display: swap;
  font-weight: 200 900;
  src: url('./fonts/mona-sans-italic.woff2') format('woff2-variations');
}

:root {
  --ink: #12110f;
  --panel: #1a1815;
  --panel-2: #221e19;
  --paper: #e9e4da;
  --paper-dim: #a49c8c;
  --safelight: #c9491f;
  --safelight-bright: #e2662f;
  --tray-green: #7a9c7e;
  --kraft: #b6873f;
  --line: rgba(233, 228, 218, 0.12);
  --radius: 5px;
  --font-display: 'Mona Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  --font-body: 'Mona Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, 'Liberation Mono', monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100vh;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
}

body {
  background-image:
    radial-gradient(ellipse at top left, rgba(201, 73, 31, 0.06), transparent 45%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");
}

button, input { font: inherit; color: inherit; }
button { cursor: pointer; }

:focus-visible {
  outline: 2px solid var(--safelight-bright);
  outline-offset: 2px;
}

/* ---------- layout ---------- */

.frame {
  display: grid;
  grid-template-columns: 272px 1fr;
  min-height: 100vh;
}

.rail {
  background: var(--panel);
  border-right: 1px solid var(--line);
  padding: 2.25rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 2.75rem;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.brand { display: flex; flex-direction: column; align-items: flex-start; gap: 0.35rem; }

.brand-mark {
  font-size: 1.4rem;
  color: var(--safelight-bright);
  text-shadow: 0 0 14px rgba(226, 102, 47, 0.55);
  animation: glow 3.5s ease-in-out infinite;
}

@keyframes glow {
  0%, 100% { opacity: 0.75; }
  50% { opacity: 1; }
}

.brand h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.9rem;
  letter-spacing: 0.02em;
  margin: 0;
}

.brand-sub {
  margin: 0;
  font-size: 0.78rem;
  color: var(--paper-dim);
  font-style: italic;
  font-family: var(--font-display);
}

.tabs { display: flex; flex-direction: column; gap: 0.35rem; }

.tab-btn {
  background: none;
  border: none;
  border-left: 2px solid transparent;
  text-align: left;
  color: var(--paper-dim);
  padding: 0.6rem 0.9rem;
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: 0 3px 3px 0;
  display: flex;
  flex-direction: column;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.tab-btn span {
  font-size: 0.72rem;
  color: var(--paper-dim);
  font-family: var(--font-mono);
  opacity: 0.75;
}

.tab-btn:hover { background: var(--panel-2); color: var(--paper); }

.tab-btn.active {
  background: var(--panel-2);
  color: var(--paper);
  border-left-color: var(--safelight-bright);
}

.rail-foot { margin-top: auto; }

.rail-foot-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--paper-dim);
  margin: 0 0 0.75rem;
}

.rail-foot ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.5rem; }

.rail-foot li {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--paper-dim);
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.dot { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }
.dot--blur { background: #8fb0e8; }
.dot--exp { background: var(--kraft); }
.dot--hash { background: #c78fd6; }
.dot--exif { background: var(--safelight-bright); }
.dot--pan { background: var(--tray-green); }
.dot--gstin { background: #6fb6c2; }

.stage { padding: 3rem clamp(1.5rem, 4vw, 3.5rem); max-width: 1080px; }

.panel { display: none; }
.panel.active { display: block; animation: fade-up 0.35s ease both; }

@keyframes fade-up {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.panel-head h2 {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 600;
  font-size: 2.4rem;
  margin: 0 0 0.5rem;
}

.panel-head p {
  margin: 0;
  max-width: 58ch;
  color: var(--paper-dim);
  line-height: 1.55;
}

/* ---------- dropzone ---------- */

.dropzone {
  margin-top: 2.25rem;
  border: 1.5px dashed var(--line);
  border-radius: var(--radius);
  padding: 2.5rem 1.5rem;
  text-align: center;
  background: var(--panel);
  transition: border-color 0.15s, background 0.15s;
}

.dropzone.drag {
  border-color: var(--safelight-bright);
  background: var(--panel-2);
}

.slot { display: flex; justify-content: center; margin-bottom: 1rem; }

.slot-mouth {
  width: 110px;
  height: 10px;
  background: var(--ink);
  border-radius: 5px;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.6), 0 1px 0 rgba(233, 228, 218, 0.06);
  position: relative;
}

.slot-mouth::before, .slot-mouth::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--paper-dim);
  opacity: 0.4;
  transform: translateY(-50%);
}
.slot-mouth::before { left: -12px; }
.slot-mouth::after { right: -12px; }

.drop-label { margin: 0; color: var(--paper-dim); }

.drop-label button {
  background: none;
  border: none;
  color: var(--safelight-bright);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 500;
  padding: 0;
}

.drop-hint {
  margin: 0.6rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--paper-dim);
  opacity: 0.7;
}

/* ---------- contact sheet ---------- */

.sheet {
  margin-top: 2.25rem;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1.25rem;
}

.empty-note {
  color: var(--paper-dim);
  font-style: italic;
  font-family: var(--font-display);
  margin-top: 2rem;
}

.frame-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  animation: fade-up 0.3s ease both;
}

.frame-thumb-wrap {
  background: var(--ink);
}

.sprockets {
  display: flex;
  justify-content: space-evenly;
  padding: 4px 6px;
  background: var(--ink);
}
.sprockets span {
  width: 5px;
  height: 5px;
  border-radius: 1px;
  background: var(--panel-2);
}

.frame-thumb {
  width: 100%;
  height: 150px;
  object-fit: cover;
  display: block;
}

.stamp {
  position: absolute;
  z-index: 2;
  top: 0.7rem;
  right: 0.7rem;
  padding: 0.22rem 0.55rem;
  border: 2px solid currentColor;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transform: rotate(-8deg);
  background: rgba(18, 17, 15, 0.55);
  backdrop-filter: blur(2px);
  animation: stamp-in 0.4s cubic-bezier(0.2, 0.8, 0.3, 1.3) both;
}

@keyframes stamp-in {
  0% { transform: scale(2.4) rotate(-8deg); opacity: 0; }
  55% { opacity: 1; }
  100% { transform: scale(1) rotate(-8deg); opacity: 1; }
}

.stamp--passed { color: var(--tray-green); }
.stamp--flagged { color: var(--kraft); }
.stamp--duplicate { color: var(--safelight-bright); }
.stamp--valid { color: var(--tray-green); }
.stamp--invalid { color: var(--safelight-bright); }

.frame-body { padding: 0.9rem 1rem 1.1rem; display: flex; flex-direction: column; gap: 0.65rem; }

.frame-name {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--paper-dim);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.metric { display: flex; align-items: center; gap: 0.5rem; }
.metric-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--paper-dim);
  width: 4.2rem;
  flex-shrink: 0;
}
.metric-bar {
  flex: 1;
  height: 5px;
  background: var(--panel-2);
  border-radius: 3px;
  overflow: hidden;
}
.metric-bar-fill { height: 100%; border-radius: 3px; }
.metric-value { font-family: var(--font-mono); font-size: 0.68rem; color: var(--paper-dim); width: 2.4rem; text-align: right; }

.tags { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.tag {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.18rem 0.4rem;
  border-radius: 3px;
  border: 1px solid var(--line);
  color: var(--paper-dim);
}
.tag--gps { color: var(--safelight-bright); border-color: currentColor; }
.tag--dup { color: var(--safelight-bright); border-color: currentColor; }

.card-actions { display: flex; gap: 0.5rem; margin-top: 0.25rem; }

.btn-small {
  flex: 1;
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--paper);
  padding: 0.4rem 0.5rem;
  border-radius: 3px;
  font-size: 0.72rem;
  transition: border-color 0.15s, color 0.15s;
}
.btn-small:hover { border-color: var(--safelight-bright); color: var(--safelight-bright); }
.btn-small:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-icon {
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--paper-dim);
  width: 2rem;
  border-radius: 3px;
  font-size: 0.8rem;
}
.btn-icon:hover { color: var(--safelight-bright); border-color: var(--safelight-bright); }

/* ---------- registry ---------- */

.ledger-row {
  margin-top: 2.25rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.ledger-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.6rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.ledger-card h3 {
  font-family: var(--font-display);
  font-weight: 600;
  margin: 0;
  font-size: 1.25rem;
}

.ledger-card label {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.78rem;
  color: var(--paper-dim);
}

.ledger-card .opt { font-style: italic; opacity: 0.7; }

.ledger-card input {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--line);
  color: var(--paper);
  padding: 0.45rem 0.1rem;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.ledger-card input::placeholder { text-transform: none; color: var(--paper-dim); opacity: 0.55; }
.ledger-card input:focus { border-bottom-color: var(--safelight-bright); }

.ledger-card button[type='submit'] {
  align-self: flex-start;
  background: var(--safelight);
  color: #fff5ee;
  border: none;
  padding: 0.55rem 1.1rem;
  border-radius: 3px;
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  transition: background 0.15s;
}
.ledger-card button[type='submit']:hover { background: var(--safelight-bright); }

.ledger-result { min-height: 1rem; }
.ledger-result .stamp { position: static; display: inline-block; transform: rotate(-4deg); margin-bottom: 0.6rem; }
.ledger-result dl {
  margin: 0;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.3rem 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}
.ledger-result dt { color: var(--paper-dim); }
.ledger-result dd { margin: 0; }

.log { margin-top: 2.5rem; }
.log h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1rem;
  margin: 0 0 0.9rem;
}

.log-list { display: flex; flex-direction: column; border-top: 1px solid var(--line); }

.log-row {
  display: grid;
  grid-template-columns: 5rem 1fr auto 6rem;
  align-items: center;
  gap: 1rem;
  padding: 0.65rem 0.25rem;
  border-bottom: 1px solid var(--line);
  font-size: 0.82rem;
  animation: fade-up 0.25s ease both;
}

.log-kind {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--paper-dim);
}

.log-input { font-family: var(--font-mono); }

.log-time {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--paper-dim);
  text-align: right;
}

.log-empty { color: var(--paper-dim); font-style: italic; padding: 0.75rem 0.25rem; }

/* ---------- responsive ---------- */

@media (max-width: 860px) {
  .frame { grid-template-columns: 1fr; }
  .rail { position: relative; height: auto; flex-direction: row; align-items: center; flex-wrap: wrap; gap: 1.25rem; padding: 1.25rem; }
  .brand { flex-direction: row; align-items: center; }
  .rail-foot { display: none; }
  .stage { padding: 2rem 1.25rem; }
  .ledger-row { grid-template-columns: 1fr; }
  .log-row { grid-template-columns: 4rem 1fr auto; }
  .log-time { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}