:root {
  --bg: #14110e;
  --bg-elevated: #1c1815;
  --bg-inset: #0f0d0b;
  --paper: #ede7da;
  --paper-dim: #a89f8e;
  --hairline: #35302a;
  --amber: #e8a33d;
  --amber-dim: #8a6428;
  --red: #c4432b;
  --green: #7ba36a;
  --radius: 3px;
  --font-display: "Space Grotesk", sans-serif;
  --font-body: "IBM Plex Sans", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--paper);
  font-family: var(--font-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ---------- filmstrip border ---------- */

.filmstrip {
  height: 22px;
  width: 100%;
  background-color: #0a0908;
  background-image:
    radial-gradient(circle at 11px 11px, var(--bg) 4px, transparent 4.5px);
  background-size: 32px 22px;
  background-repeat: repeat-x;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
}

.filmstrip.advance {
  animation: advance 0.5s steps(4);
}

@keyframes advance {
  from { background-position: 0 0; }
  to { background-position: 128px 0; }
}

@media (prefers-reduced-motion: reduce) {
  .filmstrip.advance { animation: none; }
}

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

.stage {
  max-width: 640px;
  margin: 0 auto;
  padding: 56px 24px 64px;
}

/* ---------- auth bar ---------- */

.authbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--bg-elevated);
  margin-bottom: 28px;
  font-size: 13px;
}

.authbar-status {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--paper-dim);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--paper-dim);
  flex-shrink: 0;
}

.status-dot.on { background: var(--green); }
.status-dot.guest { background: var(--amber); }

.authbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-oauth {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-body);
  font-size: 12.5px;
  background: transparent;
  border: 1px solid var(--hairline);
  color: var(--paper);
  border-radius: var(--radius);
  padding: 7px 12px;
  cursor: pointer;
}

.btn-oauth:hover { border-color: var(--paper-dim); }

.oauth-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--amber);
  color: #1a1408;
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  font-family: var(--font-mono);
}

.user-label {
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 12px;
  max-width: 160px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.quota-text {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--paper-dim);
  margin: 14px 0 0;
}

.masthead { margin-bottom: 40px; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
  margin: 0 0 14px;
}

h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 34px;
  line-height: 1.15;
  margin: 0 0 14px;
  color: var(--paper);
}

.sub {
  font-size: 15px;
  color: var(--paper-dim);
  max-width: 46ch;
  margin: 0;
}

/* ---------- notice ---------- */

.notice {
  background: rgba(196, 67, 43, 0.12);
  border: 1px solid rgba(196, 67, 43, 0.4);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: 13px;
  color: var(--paper);
  margin-bottom: 24px;
}

.notice code {
  font-family: var(--font-mono);
  background: rgba(0,0,0,0.3);
  padding: 1px 5px;
  border-radius: 2px;
}

.hidden { display: none !important; }

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

.dropzone {
  border: 1.5px dashed var(--hairline);
  border-radius: 6px;
  background: var(--bg-elevated);
  min-height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
  padding: 24px;
}

.dropzone:hover,
.dropzone:focus-visible {
  border-color: var(--amber-dim);
  outline: none;
}

.dropzone.dragover {
  border-color: var(--amber);
  background: rgba(232, 163, 61, 0.06);
}

.dropzone-inner { text-align: center; }

.sprocket-icon {
  width: 44px;
  height: 34px;
  margin: 0 auto 16px;
  border: 2px solid var(--paper-dim);
  border-radius: 3px;
  position: relative;
}

.sprocket-icon::before,
.sprocket-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--paper-dim);
  transform: translateY(-50%);
}

.sprocket-icon::before { left: -11px; }
.sprocket-icon::after { right: -11px; }

.dz-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 17px;
  margin: 0 0 6px;
}

.dz-sub {
  font-size: 13px;
  color: var(--paper-dim);
  margin: 0;
}

.dropzone-preview {
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
}

.dropzone-preview img {
  width: 88px;
  height: 88px;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid var(--hairline);
  flex-shrink: 0;
}

.preview-name {
  font-family: var(--font-mono);
  font-size: 13px;
  margin: 0 0 4px;
  word-break: break-all;
}

.preview-size {
  font-size: 12px;
  color: var(--paper-dim);
  margin: 0;
}

/* ---------- actions ---------- */

.actions {
  display: flex;
  gap: 10px;
  margin-top: 18px;
}

.btn-primary {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  background: var(--amber);
  color: #1a1408;
  border: none;
  border-radius: var(--radius);
  padding: 12px 22px;
  cursor: pointer;
  transition: opacity 0.15s ease, transform 0.1s ease;
}

.btn-primary:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.btn-primary:not(:disabled):hover { opacity: 0.88; }
.btn-primary:not(:disabled):active { transform: scale(0.98); }

.btn-ghost {
  font-family: var(--font-body);
  font-size: 14px;
  background: transparent;
  color: var(--paper-dim);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  padding: 12px 18px;
  cursor: pointer;
}

.btn-ghost:hover { color: var(--paper); border-color: var(--paper-dim); }

.status {
  font-size: 13px;
  min-height: 18px;
  margin: 14px 0 0;
  color: var(--paper-dim);
}

.status.error { color: var(--red); }
.status.success { color: var(--green); }

/* ---------- result ---------- */

.result-card {
  margin-top: 20px;
  border: 1px solid var(--hairline);
  background: var(--bg-inset);
  border-radius: var(--radius);
  padding: 16px;
}

.result-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--amber);
  margin: 0 0 10px;
}

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

.result-link {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--paper);
  background: rgba(0,0,0,0.3);
  padding: 8px 10px;
  border-radius: 3px;
  flex: 1;
  overflow-x: auto;
  white-space: nowrap;
}

.btn-copy {
  font-family: var(--font-body);
  font-size: 13px;
  background: transparent;
  border: 1px solid var(--amber-dim);
  color: var(--amber);
  border-radius: var(--radius);
  padding: 8px 14px;
  cursor: pointer;
  flex-shrink: 0;
}

.btn-copy:hover { background: rgba(232, 163, 61, 0.1); }
.btn-copy.copied { border-color: var(--green); color: var(--green); }

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

.contact-sheet { margin-top: 48px; }

.sheet-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 14px;
}

.sheet-head h2 {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  margin: 0;
}

.btn-text {
  background: none;
  border: none;
  color: var(--paper-dim);
  font-size: 12px;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.btn-text:hover { color: var(--red); }

.history-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.history-item {
  display: flex;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  padding: 8px;
  background: var(--bg-elevated);
}

.history-item img {
  width: 44px;
  height: 44px;
  object-fit: cover;
  border-radius: 3px;
  flex-shrink: 0;
  background: var(--bg-inset);
}

.history-info { flex: 1; min-width: 0; }

.history-name {
  font-family: var(--font-mono);
  font-size: 12px;
  margin: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.history-date {
  font-size: 11px;
  color: var(--paper-dim);
  margin: 2px 0 0;
}

.history-actions { display: flex; gap: 6px; flex-shrink: 0; }

.history-actions button {
  background: transparent;
  border: 1px solid var(--hairline);
  color: var(--paper-dim);
  font-size: 11px;
  padding: 6px 10px;
  border-radius: 3px;
  cursor: pointer;
}

.history-actions button:hover { color: var(--paper); border-color: var(--paper-dim); }

.history-empty {
  font-size: 13px;
  color: var(--paper-dim);
  margin: 0;
}

/* ---------- footer ---------- */

.footnote {
  text-align: center;
  padding: 20px;
  font-size: 11px;
  color: var(--paper-dim);
}

@media (max-width: 480px) {
  h1 { font-size: 27px; }
  .stage { padding: 40px 16px 48px; }
}