:root {
  --paper: #fbf8f2;
  --paper-strong: #fffaf2;
  --ink: #2f271c;
  --muted: #6d5b42;
  --line-strong: #b99051;
  --accent: #8a6731;
  --accent-strong: #6c4b17;
  --deep: #183c35;
  --shadow: rgba(100, 75, 36, 0.13);

  --cert-paper: #fbf7ee;
  --cert-ink: #28231d;
  --cert-muted: #766c5e;
  --cert-gold: #a88331;
  --cert-rose: #b87868;
  --cert-panel: rgba(255, 252, 245, 0.78);
  --cert-panel-strong: rgba(255, 250, 238, 0.94);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(120deg, rgba(24, 60, 53, 0.08), transparent 32%, rgba(139, 92, 42, 0.1)),
    linear-gradient(180deg, #fffdf8 0%, #f4e7d1 100%);
  color: var(--ink);
  font-family: 'IBM Plex Mono', monospace;
}

h1, h2, h3 { font-family: 'Cormorant Garamond', serif; font-weight: 700; }
button, input, select, textarea { font: inherit; }

input, select, textarea {
  width: 100%;
  border: 1px solid #dbc7a5;
  border-radius: 0.35rem;
  background: #fffdf9;
  color: var(--ink);
  padding: 0.42rem 0.5rem;
  font-size: 0.76rem;
  line-height: 1.25;
}

textarea { resize: vertical; }

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--line-strong);
  box-shadow: 0 0 0 1px rgba(185, 144, 81, 0.22), 0 0 12px rgba(185, 144, 81, 0.12);
}

label {
  display: block;
  color: #4a3620;
  font-size: 0.68rem;
  font-weight: 700;
  line-height: 1.45;
  text-transform: uppercase;
}

label > input, label > select, label > textarea {
  margin-top: 0.28rem;
  text-transform: none;
}

.brand-mark {
  display: inline-flex;
  align-items: baseline;
  gap: 0.14em;
  font-family: 'IBM Plex Sans', sans-serif;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
}

.brand-hanzu { color: #2f271c; }
.brand-tech, .neon-yellow { color: var(--accent); }
.faulty-neon { color: var(--accent-strong); }

.top-bar {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem;
  border-bottom: 1px solid rgba(185, 144, 81, 0.32);
  background: rgba(255, 250, 242, 0.92);
  backdrop-filter: blur(12px);
}

.top-nav { display: flex; align-items: center; gap: 1.25rem; font-size: 0.9rem; }
.top-nav a { text-decoration: none; }

.page { padding: 6rem 1rem 3rem; }
.shell { width: min(100%, 1500px); margin: 0 auto; }

.header-flex {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
}

.page-header, .panel {
  border: 1px solid #dbc8a6;
  background:
    linear-gradient(180deg, rgba(255, 250, 242, 0.95), rgba(250, 242, 228, 0.95)),
    linear-gradient(120deg, rgba(24, 60, 53, 0.06), transparent 44%, rgba(154, 120, 67, 0.08));
  box-shadow: 0 14px 30px var(--shadow);
}

.page-header { padding: 1.35rem 1.5rem; }

.session-pill {
  border: 1px solid #d7c19b;
  background: rgba(255, 253, 249, 0.78);
  padding: 0.55rem 0.7rem;
  font-size: 0.72rem;
}

.workspace {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  margin-top: 1rem;
}

.controls-pane {
  width: 440px;
  flex: 0 0 440px;
  max-height: calc(100vh - 7rem);
  overflow: auto;
  padding: 0.75rem;
}

.preview-pane {
  flex: 1 1 auto;
  min-width: 0;
  max-height: calc(100vh - 7rem);
  overflow: auto;
  padding: 1rem;
  position: sticky;
  top: 6rem;
}

.input-block {
  margin-top: 0.65rem;
  padding: 0.65rem;
  border: 1px solid #cfb990;
  background: linear-gradient(180deg, rgba(243, 230, 206, 0.94), rgba(238, 223, 194, 0.94));
}

.input-block h2 {
  margin: 0 0 0.55rem;
  color: #3a2b17;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.section-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.05rem;
  border: 1px solid #dfcaa4;
  border-radius: 0.25rem;
  background: linear-gradient(140deg, #fffdf8, #f7ecd9);
  color: #4b3b27;
  cursor: pointer;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  padding: 0.42rem 0.62rem;
  text-transform: uppercase;
}

.button.secondary { background: #fffaf2; color: var(--accent); }

.mini-link {
  border: 0;
  background: transparent;
  color: var(--accent);
  cursor: pointer;
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0;
  text-transform: uppercase;
}

.grid-two, .grid-four, .action-grid { display: grid; gap: 0.55rem; }
.grid-two, .action-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.global-action-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.row-card {
  border: 1px solid #d8c19a;
  background: rgba(255, 250, 242, 0.78);
  padding: 0.55rem;
}

.row-card + .row-card { margin-top: 0.45rem; }

.row-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  margin-bottom: 0.5rem;
}

.row-card-head strong {
  color: var(--deep);
  font-size: 0.72rem;
}

.section-toggle-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.35rem 0.65rem;
}

.section-toggle {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  color: #5e503c;
  font-size: 0.65rem;
}

.section-toggle input {
  width: 14px;
  height: 14px;
  margin: 0;
}

.preview-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
  border: 1px solid #cfb990;
  background: rgba(255, 253, 249, 0.7);
  padding: 0.65rem;
}

.preview-stage {
  display: grid;
  place-items: start center;
  min-height: 100%;
  padding: 1rem 0 2rem;
  background: #ddd5ca;
}

.hidden { display: none !important; }
.text-muted { color: var(--muted); }
.doc-label {
  margin: 0;
  color: var(--muted);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.upload-compact {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  width: 100%;
  border: 1px dashed #d8c19a;
  background: #fffaf1;
  color: #75654e;
  cursor: pointer;
  padding: 0.4rem 0.55rem;
}

/* Certificate sheet */
#certificate-preview .sheet {
  position: relative;
  width: 8.5in;
  height: 11in;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(255,255,255,0.42), rgba(255,255,255,0) 32%),
    radial-gradient(circle at 15% 10%, rgba(184, 120, 104, 0.14), transparent 28%),
    radial-gradient(circle at 86% 88%, rgba(168, 131, 49, 0.15), transparent 25%),
    repeating-linear-gradient(0deg, rgba(91, 77, 51, 0.028) 0 1px, transparent 1px 13px),
    repeating-linear-gradient(90deg, rgba(91, 77, 51, 0.024) 0 1px, transparent 1px 17px),
    var(--cert-paper);
  box-shadow: 0 24px 70px rgba(34, 30, 24, 0.25);
  color: var(--cert-ink);
  font-family: "Georgia", "Times New Roman", serif;
}

#certificate-preview .sheet::before,
#certificate-preview .sheet::after {
  content: "";
  position: absolute;
  pointer-events: none;
}

#certificate-preview .sheet::before {
  inset: 0.32in;
  border: 1px solid rgba(168, 131, 49, 0.5);
}

#certificate-preview .sheet::after {
  inset: 0.46in;
  border: 1px solid rgba(184, 120, 104, 0.25);
}

#certificate-preview .geometry {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.72;
}

#certificate-preview .content {
  position: relative;
  z-index: 1;
  height: 100%;
  padding: 0.66in 0.74in 0.56in;
  display: flex;
  flex-direction: column;
}

#certificate-preview header {
  display: grid;
  grid-template-columns: 1.15in 1fr;
  gap: 0.22in;
  align-items: center;
  padding-bottom: 0.22in;
  border-bottom: 1px solid rgba(168, 131, 49, 0.46);
}

#certificate-preview .mark {
  width: 0.95in;
  height: 0.95in;
  display: grid;
  place-items: center;
  border: 2px solid var(--cert-gold);
  border-radius: 50%;
  color: var(--cert-gold);
  background: rgba(255, 251, 242, 0.75);
  outline: 1px solid rgba(168, 131, 49, 0.32);
  outline-offset: 5px;
  text-align: center;
  font-family: Arial, sans-serif;
}

#certificate-preview .mark strong {
  display: block;
  font-size: 22px;
  line-height: 1;
  font-family: Georgia, serif;
  font-style: italic;
}

#certificate-preview .mark span {
  display: block;
  margin-top: 5px;
  font-size: 8px;
  line-height: 1.15;
  text-transform: uppercase;
  font-weight: 700;
}

#certificate-preview .eyebrow {
  color: var(--cert-gold);
  font-family: Arial, sans-serif;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 0.04in;
}

#certificate-preview h1 {
  margin: 0;
  font-size: 30px;
  line-height: 1.05;
  font-weight: 400;
  text-transform: uppercase;
}

#certificate-preview .subtitle {
  margin-top: 0.06in;
  max-width: 5.8in;
  color: var(--cert-muted);
  font-family: Arial, sans-serif;
  font-size: 10.5px;
  line-height: 1.45;
}

#certificate-preview .meta-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.14in;
  margin-top: 0.24in;
}

#certificate-preview .meta-card,
#certificate-preview .detail-card,
#certificate-preview .photo-card,
#certificate-preview .comment-card,
#certificate-preview .scale-card {
  background: var(--cert-panel);
  border: 1px solid rgba(168, 131, 49, 0.36);
}

#certificate-preview .meta-card { min-height: 0.54in; padding: 0.11in 0.13in; }
#certificate-preview .label {
  margin-bottom: 0.04in;
  color: var(--cert-muted);
  font-family: Arial, sans-serif;
  font-size: 8.5px;
  font-weight: 700;
  text-transform: uppercase;
}

#certificate-preview .value {
  font-family: Arial, sans-serif;
  font-size: 11px;
  line-height: 1.3;
  font-weight: 700;
}

#certificate-preview .main {
  display: grid;
  grid-template-columns: 1fr 2.18in;
  gap: 0.18in;
  margin-top: 0.18in;
  flex: 1;
  min-height: 0;
}

#certificate-preview .details { display: grid; gap: 0.14in; align-content: start; }
#certificate-preview .detail-card { padding: 0.14in 0.17in; }

#certificate-preview h2 {
  margin: 0 0 0.1in;
  color: var(--cert-gold);
  font-size: 15px;
  line-height: 1.1;
  font-weight: 400;
  text-transform: uppercase;
}

#certificate-preview .kv {
  display: grid;
  grid-template-columns: 1.45in 1fr;
  row-gap: 0.055in;
  column-gap: 0.1in;
  font-family: Arial, sans-serif;
  font-size: 10.5px;
  line-height: 1.25;
}

#certificate-preview .kv .k { color: var(--cert-muted); font-weight: 700; }
#certificate-preview .kv .v { font-weight: 700; }

#certificate-preview .stone-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.1in;
}

#certificate-preview .stone-box {
  padding: 0.12in;
  min-height: 1.02in;
  background: rgba(255, 252, 245, 0.64);
  border: 1px solid rgba(184, 120, 104, 0.34);
}

#certificate-preview .stone-title {
  margin: 0 0 0.06in;
  color: var(--cert-rose);
  font-family: Arial, sans-serif;
  font-size: 9px;
  font-weight: 800;
  text-transform: uppercase;
}

#certificate-preview .stone-data {
  margin: 0;
  font-family: Arial, sans-serif;
  font-size: 10.5px;
  line-height: 1.35;
}

#certificate-preview .side { display: grid; gap: 0.14in; align-content: start; }

#certificate-preview .photo-card {
  height: 2.38in;
  padding: 0.12in;
  display: grid;
  place-items: center;
  background:
    linear-gradient(135deg, rgba(45, 38, 30, 0.88), rgba(67, 55, 44, 0.76)),
    var(--cert-panel-strong);
  color: #fff;
  text-align: center;
}

#certificate-preview .photo-inner {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255,255,255,0.32);
  padding: 0.16in;
  overflow: hidden;
}

#certificate-preview .photo-image {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

#certificate-preview .gem-icon {
  width: 0.82in;
  height: 0.82in;
  margin: 0 auto 0.08in;
}

#certificate-preview .photo-title {
  font-size: 13px;
  line-height: 1.2;
  text-transform: uppercase;
}

#certificate-preview .photo-note {
  margin-top: 0.08in;
  color: rgba(255,255,255,0.76);
  font-family: Arial, sans-serif;
  font-size: 9px;
  line-height: 1.35;
}

#certificate-preview .comment-card {
  padding: 0.14in 0.15in;
  font-family: Arial, sans-serif;
  font-size: 9.5px;
  line-height: 1.45;
}

#certificate-preview .comment-card p { margin: 0 0 0.08in; }
#certificate-preview .comment-card p:last-child { margin-bottom: 0; }

#certificate-preview .signature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.12in;
  margin-top: 0.13in;
}

#certificate-preview .sig-field {
  color: var(--cert-muted);
  font-family: Arial, sans-serif;
  font-size: 8px;
  text-transform: uppercase;
  font-weight: 700;
}

#certificate-preview .sig-field .line {
  height: 0.31in;
  margin-bottom: 0.045in;
  border-bottom: 1px solid rgba(40, 35, 29, 0.55);
  display: flex;
  align-items: flex-end;
  font-size: 10px;
  text-transform: none;
  color: var(--cert-ink);
}

#certificate-preview .bottom { margin-top: 0.18in; }
#certificate-preview .scale-card { padding: 0.11in 0.13in 0.12in; }

#certificate-preview .scale-heading {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.07in;
  font-family: Arial, sans-serif;
  font-size: 8px;
  text-transform: uppercase;
  color: var(--cert-muted);
  font-weight: 700;
}

#certificate-preview .scale {
  display: grid;
  border: 1px solid rgba(40, 35, 29, 0.3);
  border-right: 0;
  font-family: Arial, sans-serif;
  font-size: 8.5px;
  text-align: center;
  background: rgba(255, 255, 255, 0.42);
}

#certificate-preview .scale div {
  padding: 0.045in 0.01in;
  border-right: 1px solid rgba(40, 35, 29, 0.3);
}

#certificate-preview .scale .active {
  color: #fff;
  background: var(--cert-rose);
  font-weight: 800;
}

#certificate-preview .fineprint {
  margin-top: 0.1in;
  color: var(--cert-muted);
  font-family: Arial, sans-serif;
  font-size: 7.8px;
  line-height: 1.4;
  text-align: center;
}

#certificate-preview .side-note {
  position: absolute;
  right: 0.18in;
  top: 2.2in;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  color: rgba(118, 108, 94, 0.58);
  font-family: Arial, sans-serif;
  font-size: 8px;
  text-transform: uppercase;
  z-index: 1;
}

@media (max-width: 1100px) {
  .workspace { flex-direction: column; }
  .controls-pane, .preview-pane {
    width: 100%;
    flex-basis: auto;
    max-height: none;
    position: static;
  }
}

@media print {
  body { background: white; }
  .no-print { display: none !important; }
  .preview-pane { max-height: none; overflow: visible; padding: 0; }
  .preview-stage { padding: 0; background: white; }
  #certificate-preview .sheet { box-shadow: none; }
}

@media (max-width: 900px) {
  .grid-four, .grid-two, .global-action-grid, .action-grid {
    grid-template-columns: 1fr;
  }
}