/*
 * AppSigner design system.
 *
 * Theme: "ink & paper" — warm paper background, deep ink-blue accents,
 * serif display type. Light and dark variants keyed off the OS theme.
 */

:root {
  --paper: #f6f2ea;
  --paper-glow: #fdfbf6;
  --card: #fffdf9;
  --card-border: #e5ddcf;
  --ink: #1e2a56;
  --ink-strong: #141d3f;
  --accent: #2b4acb;
  --accent-soft: rgba(43, 74, 203, 0.08);
  --text: #2a2c33;
  --text-muted: #6d6f78;
  --line: #d8d0c1;
  --danger: #b3261e;
  --danger-soft: #fbeae9;
  --success: #1e7f4f;
  --success-soft: #e6f4ec;
  --shadow:
    0 1px 2px rgba(30, 42, 86, 0.06),
    0 8px 24px rgba(30, 42, 86, 0.09),
    0 24px 64px rgba(30, 42, 86, 0.07);
  --font-serif: ui-serif, Georgia, "Times New Roman", serif;
  --font-sans: system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-script: "Snell Roundhand", "Segoe Script", "Brush Script MT", cursive;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #14161c;
    --paper-glow: #1b1e27;
    --card: #1e212b;
    --card-border: #2e3242;
    --ink: #aebdf5;
    --ink-strong: #ccd6fb;
    --accent: #7c96f4;
    --accent-soft: rgba(124, 150, 244, 0.12);
    --text: #e6e7ec;
    --text-muted: #9a9daa;
    --line: #3a3f52;
    --danger: #f2887f;
    --danger-soft: rgba(179, 38, 30, 0.18);
    --success: #6fcf9a;
    --success-soft: rgba(30, 127, 79, 0.2);
    --shadow:
      0 1px 2px rgba(0, 0, 0, 0.4),
      0 12px 32px rgba(0, 0, 0, 0.45);
  }
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

html, body { height: 100%; }

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text);
  background:
    radial-gradient(80rem 40rem at 50% -10rem, var(--paper-glow), transparent),
    var(--paper);
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
}

/* --- Page shell ------------------------------------------------------- */

.page {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 1.25rem 2rem;
  gap: 1.75rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--ink);
  text-decoration: none;
}

.brand svg { display: block; }

.brand-name {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--ink-strong);
}

.page-footer {
  color: var(--text-muted);
  font-size: 0.8rem;
  text-align: center;
}

/* --- Card ------------------------------------------------------------- */

.card {
  width: 100%;
  max-width: 30rem;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 1.25rem;
  box-shadow: var(--shadow);
  padding: 2.25rem 2.25rem 2rem;
}

.card h1 {
  font-family: var(--font-serif);
  font-size: 1.85rem;
  font-weight: 650;
  line-height: 1.2;
  color: var(--ink-strong);
  margin: 0 0 0.6rem;
  letter-spacing: -0.01em;
}

.lede {
  color: var(--text-muted);
  font-size: 0.98rem;
  margin: 0 0 1.75rem;
}

/* Decorative sample signature under the heading */
.flourish {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin: 0 0 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--line);
}

.flourish .script {
  font-family: var(--font-script);
  font-size: 1.6rem;
  color: var(--accent);
  transform: rotate(-2deg);
  white-space: nowrap;
}

.flourish .rule {
  flex: 1;
  border-bottom: 1.5px solid var(--line);
  position: relative;
  top: -0.35rem;
}

.flourish .caption {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  white-space: nowrap;
}

/* --- Alerts ------------------------------------------------------------ */

.alert {
  display: flex;
  gap: 0.5rem;
  align-items: flex-start;
  background: var(--danger-soft);
  color: var(--danger);
  border: 1px solid color-mix(in srgb, var(--danger) 25%, transparent);
  border-radius: 0.65rem;
  padding: 0.7rem 0.9rem;
  font-size: 0.9rem;
  margin: 0 0 1.25rem;
}

/* --- Form -------------------------------------------------------------- */

.field { margin: 0 0 1.25rem; }

.field label:not(.dropzone) {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink-strong);
  margin-bottom: 0.4rem;
  letter-spacing: 0.01em;
}

.field input[type="text"] {
  width: 100%;
  padding: 0.7rem 0.85rem;
  font-size: 1rem;
  font-family: inherit;
  color: var(--text);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 0.65rem;
  transition: border-color 120ms ease, box-shadow 120ms ease;
}

.field input[type="text"]::placeholder { color: var(--text-muted); opacity: 0.7; }

.field input[type="text"]:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

/* --- Dropzone ----------------------------------------------------------- */

.dropzone {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  text-align: center;
  padding: 1.9rem 1rem;
  border: 1.5px dashed var(--line);
  border-radius: 0.85rem;
  background: transparent;
  cursor: pointer;
  transition: border-color 140ms ease, background-color 140ms ease;
}

.dropzone:hover,
.dropzone:focus-within,
.dropzone.dragover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.dropzone svg {
  color: var(--accent);
  margin-bottom: 0.35rem;
}

.dropzone .dz-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink-strong);
}

.dropzone .dz-title .browse { color: var(--accent); text-decoration: underline; }

.dropzone .dz-note { font-size: 0.8rem; color: var(--text-muted); }

.dropzone.has-file { border-style: solid; border-color: var(--accent); }

.dropzone input[type="file"] {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  overflow: hidden;
}

/* --- Button ------------------------------------------------------------- */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.8rem 1.4rem;
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  color: #fff;
  background: var(--ink);
  border: none;
  border-radius: 0.7rem;
  cursor: pointer;
  transition: background-color 130ms ease, transform 130ms ease, box-shadow 130ms ease;
}

@media (prefers-color-scheme: dark) {
  .button { color: #12141c; }
}

.button:hover { background: var(--ink-strong); transform: translateY(-1px); box-shadow: var(--shadow); }
.button:active { transform: translateY(0); }
.button:focus-visible { outline: 3px solid var(--accent-soft); outline-offset: 2px; }
.button:disabled { opacity: 0.65; cursor: progress; transform: none; box-shadow: none; }

.button-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.6rem;
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  background: var(--ink);
  border-radius: 0.7rem;
  text-decoration: none;
  transition: background-color 130ms ease, transform 130ms ease;
}

@media (prefers-color-scheme: dark) {
  .button-link { color: #12141c; }
}

.button-link:hover { background: var(--ink-strong); transform: translateY(-1px); }

/* --- Hint / footer text -------------------------------------------------- */

.hint {
  margin: 1.5rem 0 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  color: var(--text-muted);
  font-size: 0.85rem;
}

.hint a { color: var(--accent); }

.hint strong { color: var(--ink-strong); font-weight: 600; }

/* --- Status page ---------------------------------------------------------- */

.status-card { text-align: center; }

.status-visual {
  width: 4.5rem;
  height: 4.5rem;
  margin: 0.5rem auto 1.25rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-soft);
  color: var(--accent);
}

.status-visual .icon { display: none; }

/* Spinner while pending/processing */
.status-card[data-state="pending"] .icon-spinner,
.status-card[data-state="processing"] .icon-spinner { display: block; }

.status-card[data-state="completed"] .status-visual {
  background: var(--success-soft);
  color: var(--success);
}
.status-card[data-state="completed"] .icon-check { display: block; }

.status-card[data-state="failed"] .status-visual {
  background: var(--danger-soft);
  color: var(--danger);
}
.status-card[data-state="failed"] .icon-cross { display: block; }

/* Complex documents wait for their own flow; no outcome icon applies yet. */
.status-card[data-state="complex"] .status-visual { display: none; }

.spinner-ring {
  display: block;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 50%;
  border: 3px solid var(--accent-soft);
  border-top-color: var(--accent);
  animation: spin 900ms linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

@media (prefers-reduced-motion: reduce) {
  .spinner-ring { animation-duration: 2.5s; }
  .button:hover, .button-link:hover { transform: none; }
}

.status-message {
  font-size: 1.02rem;
  color: var(--text);
  margin: 0 0 1.5rem;
}

.status-message:empty { display: none; }

.status-card .alert { text-align: left; }

.status-card h1 { margin-bottom: 1rem; }

/* Reviewing state waits on the signer, shown briefly before redirecting. */
.status-card[data-state="reviewing"] .icon-spinner { display: block; }

/* --- Complex-document review ------------------------------------------- */

.review-card { max-width: 44rem; }

.review-card .lede { margin-bottom: 1.1rem; }

/* Progress dots, one per field */
.review-dots {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  list-style: none;
  margin: 0 0 0.9rem;
  padding: 0;
}

.review-dot {
  display: block;
  width: 0.72rem;
  height: 0.72rem;
  padding: 0;
  border-radius: 50%;
  border: 2px solid var(--line);
  background: transparent;
  cursor: pointer;
  transition: transform 120ms ease, border-color 120ms ease, background-color 120ms ease;
}

.review-dot:hover { transform: scale(1.25); border-color: var(--accent); }
.review-dot.is-accepted { background: var(--success); border-color: var(--success); }
.review-dot.is-skipped { background: var(--line); }
.review-dot.is-current { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }

/* The document viewport the camera pans around in */
.review-viewport {
  position: relative;
  height: 21rem;
  overflow: hidden;
  border: 1px solid var(--card-border);
  border-radius: 0.85rem;
  background: var(--paper);
  transition: opacity 200ms ease;
}

.review-viewport.is-loading { opacity: 0.35; }

.review-camera {
  position: absolute;
  top: 0;
  left: 0;
  transform-origin: 0 0;
  transition: transform 650ms cubic-bezier(0.22, 1, 0.36, 1);
}

.review-camera.no-transition { transition: none; }

.review-camera img {
  display: block;
  width: auto;
  max-width: none;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.18);
}

.review-highlight {
  position: absolute;
  border: 2px solid var(--accent);
  border-radius: 6px;
  background: rgba(43, 74, 203, 0.07);
  box-shadow: 0 0 0 4px rgba(43, 74, 203, 0.15);
  animation: highlight-pulse 1.8s ease-in-out infinite;
}

.review-viewport.is-overview .review-highlight { display: none; }

@keyframes highlight-pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(43, 74, 203, 0.15); }
  50% { box-shadow: 0 0 0 9px rgba(43, 74, 203, 0.05); }
}

/* Live preview of what would be written, sitting on the line's baseline.
   Styled to match the stamped Times bold-italic ink. */
.review-ghost {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.18em;
  text-align: center;
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 700;
  color: #1a1a66;
  opacity: 0.85;
  white-space: nowrap;
  overflow: hidden;
  pointer-events: none;
}

.review-page-badge {
  position: absolute;
  top: 0.6rem;
  right: 0.6rem;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--ink);
  background: color-mix(in srgb, var(--card) 82%, transparent);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(4px);
}

/* Decision pane under the viewport */
.review-decision { margin-top: 1.1rem; }

.review-field-head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.8rem;
}

.review-field-label {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--ink-strong);
  margin: 0;
}

.review-badge {
  padding: 0.1rem 0.55rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  background: var(--accent-soft);
}

.review-badge--suggested {
  color: var(--success);
  background: var(--success-soft);
  text-transform: none;
  letter-spacing: normal;
}

.review-value { margin-bottom: 1rem; }

.review-actions {
  display: flex;
  gap: 0.75rem;
}

.review-actions .button { flex: 1; }

.button--ghost {
  color: var(--ink);
  background: transparent;
  border: 1.5px solid var(--line);
}

.button--ghost:hover { background: var(--accent-soft); color: var(--ink); }

.review-actions .button.is-chosen {
  outline: 3px solid var(--accent-soft);
  outline-offset: 1px;
}

.review-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1rem;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.review-nav-link {
  border: none;
  background: none;
  padding: 0.2rem 0.4rem;
  font: inherit;
  color: var(--accent);
  cursor: pointer;
  border-radius: 0.4rem;
}

.review-nav-link:hover { background: var(--accent-soft); }
.review-nav-link:disabled { color: var(--text-muted); opacity: 0.4; cursor: default; background: none; }

/* Summary pane */
.review-summary { margin-top: 1.1rem; }

.review-summary h2 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--ink-strong);
  margin: 0 0 0.75rem;
}

.review-summary-list {
  list-style: none;
  margin: 0 0 1.1rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.review-summary-row {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  width: 100%;
  padding: 0.55rem 0.75rem;
  font: inherit;
  text-align: left;
  color: var(--text);
  background: transparent;
  border: 1px solid var(--card-border);
  border-radius: 0.65rem;
  cursor: pointer;
  transition: border-color 120ms ease, background-color 120ms ease;
}

.review-summary-row:hover { border-color: var(--accent); background: var(--accent-soft); }

.review-summary-mark {
  flex: none;
  width: 1.5rem;
  height: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 0.85rem;
  font-weight: 700;
}

.review-summary-row.is-accepted .review-summary-mark { color: var(--success); background: var(--success-soft); }
.review-summary-row.is-skipped .review-summary-mark { color: var(--text-muted); background: var(--accent-soft); }
.review-summary-row.is-skipped .review-summary-text { color: var(--text-muted); }

.review-summary-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.review-summary-text strong { color: var(--ink-strong); }

.review-summary-text small {
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.review-finalize-hint {
  margin: 0.75rem 0 0;
  font-size: 0.85rem;
  color: var(--danger);
}

@media (prefers-reduced-motion: reduce) {
  .review-camera { transition: none; }
  .review-highlight { animation: none; }
}

/* --- Admin ------------------------------------------------------------ */

.admin-card { max-width: 52rem; }

.admin-table-wrap { overflow-x: auto; }

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.admin-table th {
  text-align: left;
  font-weight: 600;
  color: var(--text-muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.admin-table th,
.admin-table td {
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.admin-table tbody tr:last-child td { border-bottom: none; }

.admin-table a { color: var(--accent); }

.admin-filename {
  max-width: 16rem;
  overflow: hidden;
  text-overflow: ellipsis;
}

.status-pill {
  display: inline-block;
  padding: 0.1rem 0.6rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: capitalize;
  background: var(--accent-soft);
  color: var(--ink);
}

.status-pill--completed { background: var(--success-soft); color: var(--success); }
.status-pill--failed { background: var(--danger-soft); color: var(--danger); }