/* ──────────────────────────────────────────────────────────────────────────
   BookLens AI — Main Stylesheet
   Aesthetic: Editorial dark library — ink, aged paper, brass hardware.
   Typefaces: Playfair Display (headings) + DM Mono (data/labels) + Lora (body)
   ────────────────────────────────────────────────────────────────────────── */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,700;0,900;1,400&family=DM+Mono:wght@300;400;500&family=Lora:ital,wght@0,400;0,500;1,400&display=swap');

/* ── CSS variables ─────────────────────────────────────────────────────── */
:root {
  --ink:        #0d0d0f;
  --ink-soft:   #1c1c21;
  --ink-mid:    #2e2e36;
  --brass:      #c8a96e;
  --brass-pale: #e8d5a8;
  --paper:      #f5f0e8;
  --paper-dark: #ede6d6;
  --mist:       #8a8799;
  --cream:      #faf7f2;
  --red-flag:   #c0392b;
  --green-ok:   #27ae60;
  --radius:     6px;
  --radius-lg:  12px;
  --shadow:     0 4px 24px rgba(0,0,0,0.45);
  --shadow-sm:  0 2px 8px rgba(0,0,0,0.3);
  --transition: 0.2s ease;
  --font-head:  'Playfair Display', Georgia, serif;
  --font-body:  'Lora', Georgia, serif;
  --font-mono:  'DM Mono', 'Courier New', monospace;
  --max-width:  1140px;
}

/* ── Reset & base ──────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  min-height: 100vh;
  /* Subtle grain texture overlay */
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(200,169,110,0.08) 0%, transparent 60%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
}

a { color: var(--brass); text-decoration: none; }
a:hover { color: var(--brass-pale); }

img { max-width: 100%; display: block; }

/* ── Layout ────────────────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Typography ────────────────────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: var(--font-head);
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.mono { font-family: var(--font-mono); }
.muted { color: var(--mist); }
.brass { color: var(--brass); }

/* ── Header ────────────────────────────────────────────────────────────── */
.site-header {
  border-bottom: 1px solid var(--ink-mid);
  padding: 20px 0;
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13,13,15,0.92);
  backdrop-filter: blur(12px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-family: var(--font-head);
  font-size: 1.8rem;
  font-weight: 850;
  letter-spacing: -0.03em;
  color: var(--paper);
}

.logo-icon {
  width: 36px;
  height: 20px;
  /* background: var(--brass);
  border-radius: var(--radius); */
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  font-size: 2.4rem;
  flex-direction: row;
  align-content: flex-start;
  flex-wrap: nowrap;
}

.logo span { 
  color: var(--brass); 
  background: linear-gradient(360deg, var(--paper) 5%, #d1a145);
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header-nav {
  display: flex;
  gap: 8px;
}

.nav-tab {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: 8px 18px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
  background: none;
  color: var(--mist);
}

.nav-tab:hover {
  color: var(--paper);
  border-color: var(--ink-mid);
}

.nav-tab.active {
  background: var(--ink-soft);
  border-color: var(--brass);
  color: var(--brass);
}

/* ── Hero banner ───────────────────────────────────────────────────────── */
.hero {
  padding: 72px 0 56px;
  text-align: center;
  position: relative;
}

.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.5rem);
  font-weight: 900;
  margin-bottom: 16px;
  background: linear-gradient(120deg, var(--paper) 10%, var(--brass));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.1rem;
  color: var(--mist);
  max-width: 540px;
  margin: 0 auto;
  font-style: italic;
}

/* ── Panels (tabbed views) ─────────────────────────────────────────────── */
.panel { display: none; }
.panel.active { display: block; }

/* ── Upload zone ───────────────────────────────────────────────────────── */
.upload-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
  margin-bottom: 48px;
}

@media (max-width: 720px) {
  .upload-section { grid-template-columns: 1fr; }
}

.upload-card {
  background: var(--ink-soft);
  border: 1px solid var(--ink-mid);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: border-color var(--transition);
}

.upload-card:hover { border-color: rgba(200,169,110,0.35); }

.upload-card h2 {
  font-size: 1.4rem;
  margin-bottom: 6px;
  color: var(--paper);
}

.upload-card > p {
  font-size: 0.9rem;
  color: var(--mist);
  margin-bottom: 24px;
  font-style: italic;
}

.drop-zone {
  border: 2px dashed var(--ink-mid);
  border-radius: var(--radius);
  padding: 40px 20px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  background: rgba(255,255,255,0.015);
}

.drop-zone:hover,
.drop-zone.drag-over {
  border-color: var(--brass);
  background: rgba(200,169,110,0.06);
}

.drop-zone input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
}

.drop-zone-icon {
  font-size: 2rem;
  margin-bottom: 12px;
  opacity: 0.5;
}

.drop-zone p {
  font-size: 0.88rem;
  color: var(--mist);
  margin-bottom: 4px;
}

.drop-zone .file-hint {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-mid);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.file-list {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.file-chip {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  background: var(--ink-mid);
  border-radius: 4px;
  padding: 4px 10px;
  color: var(--brass-pale);
  display: flex;
  align-items: center;
  gap: 6px;
}

.file-chip .remove {
  cursor: pointer;
  opacity: 0.6;
  font-size: 0.9rem;
}
.file-chip .remove:hover { opacity: 1; color: var(--red-flag); }

/* ── Preferences form ──────────────────────────────────────────────────── */
.prefs-form {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--mist);
  margin-bottom: 6px;
}

.form-group input[type="text"],
.form-group select,
.form-group input[type="number"] {
  width: 100%;
  background: var(--ink);
  border: 1px solid var(--ink-mid);
  border-radius: var(--radius);
  padding: 10px 14px;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 0.9rem;
  transition: border-color var(--transition);
  -webkit-appearance: none;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--brass);
}

.form-group select option { background: var(--ink-soft); }

/* ── Buttons ───────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  font-weight: 500;
}

.btn-primary {
  background: var(--brass);
  color: var(--ink);
}
.btn-primary:hover {
  background: var(--brass-pale);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(200,169,110,0.3);
}
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  background: var(--ink-mid);
  color: var(--paper);
  border: 1px solid var(--ink-mid);
}
.btn-secondary:hover {
  border-color: var(--brass);
  color: var(--brass);
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none !important;
}

.btn-full { width: 100%; margin-top: 8px; }

/* ── Status / progress ─────────────────────────────────────────────────── */
.status-bar {
  background: var(--ink-soft);
  border: 1px solid var(--ink-mid);
  border-radius: var(--radius);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-dot.pending  { background: var(--mist); animation: pulse 1.5s infinite; }
.status-dot.started  { background: var(--brass); animation: pulse 1s infinite; }
.status-dot.awaiting { background: #e67e22; animation: pulse 1.2s infinite; }
.status-dot.success  { background: var(--green-ok); }
.status-dot.failure  { background: var(--red-flag); }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}

/* ── Recommendations grid ──────────────────────────────────────────────── */
.results-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--ink-mid);
}

.results-header h2 {
  font-size: 1.6rem;
}

.results-count {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--mist);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.recs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  margin-bottom: 48px;
}

.rec-card {
  background: var(--ink-soft);
  border: 1px solid var(--ink-mid);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  animation: fadeUp 0.4s ease both;
  cursor: default;
}

.rec-card:hover {
  border-color: rgba(200,169,110,0.45);
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.rec-card-image {
  width: 100%;
  height: 140px;
  object-fit: cover;
  background: var(--ink-mid);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--mist);
  font-size: 2rem;
}

.rec-card-image img {
  width: 100%;
  height: 140px;
  object-fit: cover;
}

.rec-card-body {
  padding: 20px;
}

.rec-rank {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--brass);
  margin-bottom: 8px;
}

.rec-title {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 4px;
  line-height: 1.3;
}

.rec-author {
  font-size: 0.84rem;
  color: var(--mist);
  font-style: italic;
  margin-bottom: 12px;
}

.rec-summary {
  font-size: 0.85rem;
  color: var(--paper-dark);
  line-height: 1.55;
  margin-bottom: 12px;
}

.rec-match {
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--brass);
  border-top: 1px solid var(--ink-mid);
  padding-top: 12px;
  line-height: 1.4;
}

/* ── Review panel (HITL corrections) ──────────────────────────────────── */
.review-intro {
  background: rgba(230,126,34,0.1);
  border: 1px solid rgba(230,126,34,0.35);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 28px;
  font-size: 0.9rem;
  color: var(--brass-pale);
}

.review-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

.review-card {
  background: var(--ink-soft);
  border: 1px solid var(--ink-mid);
  border-radius: var(--radius-lg);
  overflow: hidden;
  animation: fadeUp 0.35s ease both;
}

.review-card-image {
  width: 100%;
  height: 120px;
  object-fit: cover;
  background: var(--ink-mid);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--mist);
}

.review-card-image img {
  width: 100%;
  height: 120px;
  object-fit: contain;
  background: var(--ink-mid);
  padding: 8px;
}

.review-card-body { padding: 18px; }

.confidence-badge {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 3px 8px;
  border-radius: 4px;
  margin-bottom: 14px;
  display: inline-block;
}
.confidence-badge.low {
  background: rgba(192,57,43,0.2);
  color: #e74c3c;
  border: 1px solid rgba(192,57,43,0.3);
}

.review-field {
  margin-bottom: 12px;
}

.review-field label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--mist);
  display: block;
  margin-bottom: 5px;
}

.review-field input {
  width: 100%;
  background: var(--ink);
  border: 1px solid var(--ink-mid);
  border-radius: var(--radius);
  padding: 9px 12px;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 0.88rem;
  transition: border-color var(--transition);
}

.review-field input:focus {
  outline: none;
  border-color: var(--brass);
}

/* ── Catalog table ─────────────────────────────────────────────────────── */
.catalog-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}

.catalog-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--ink-mid);
  border-radius: var(--radius-lg);
  margin-bottom: 32px;
}

table.catalog-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.catalog-table thead {
  background: var(--ink-soft);
  border-bottom: 1px solid var(--ink-mid);
}

.catalog-table th {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--mist);
  padding: 14px 16px;
  text-align: left;
  white-space: nowrap;
}

.catalog-table td {
  padding: 13px 16px;
  border-bottom: 1px solid rgba(46,46,54,0.6);
  vertical-align: top;
  max-width: 280px;
}

.catalog-table tbody tr:hover {
  background: rgba(200,169,110,0.04);
}

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

.genre-badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: var(--ink-mid);
  color: var(--brass-pale);
  padding: 3px 8px;
  border-radius: 4px;
  white-space: nowrap;
}

.source-badge {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  padding: 2px 6px;
  border-radius: 4px;
}
.source-badge.auto     { background: rgba(39,174,96,0.15);  color: #2ecc71; }
.source-badge.human    { background: rgba(200,169,110,0.15); color: var(--brass); }

/* ── Empty / error states ──────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 64px 24px;
  color: var(--mist);
}
.empty-state .empty-icon { font-size: 3rem; margin-bottom: 16px; opacity: 0.4; }
.empty-state p { font-style: italic; }

.error-box {
  background: rgba(192,57,43,0.12);
  border: 1px solid rgba(192,57,43,0.35);
  border-radius: var(--radius);
  padding: 16px 20px;
  color: #e74c3c;
  font-size: 0.88rem;
  margin-bottom: 20px;
}

/* ── Footer ────────────────────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--ink-mid);
  margin-top: 80px;
  padding: 32px 0;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-mid);
  letter-spacing: 0.06em;
}

/* ── Loader spinner ────────────────────────────────────────────────────── */
.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(200,169,110,0.25);
  border-top-color: var(--brass);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ── Divider ───────────────────────────────────────────────────────────── */
.divider {
  border: none;
  border-top: 1px solid var(--ink-mid);
  margin: 40px 0;
}

/* ── Toast notifications ───────────────────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  background: var(--ink-soft);
  border: 1px solid var(--ink-mid);
  border-radius: var(--radius);
  padding: 14px 20px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--paper);
  max-width: 320px;
  animation: slideIn 0.25s ease;
  box-shadow: var(--shadow);
}
.toast.success { border-color: var(--green-ok); color: var(--green-ok); }
.toast.error   { border-color: var(--red-flag); color: #e74c3c; }
.toast.info    { border-color: var(--brass); color: var(--brass); }

@keyframes slideIn {
  from { transform: translateX(40px); opacity: 0; }
  to   { transform: translateX(0); opacity: 1; }
}

/* ── Confidence bar ────────────────────────────────────────────────────── */
.conf-bar-wrap { display: flex; align-items: center; gap: 8px; }
.conf-bar {
  height: 4px;
  background: var(--ink-mid);
  border-radius: 2px;
  flex: 1;
  overflow: hidden;
}
.conf-bar-fill {
  height: 100%;
  border-radius: 2px;
  background: var(--brass);
  transition: width 0.4s ease;
}
.conf-bar-fill.low { background: var(--red-flag); }

/* ── About App page ────────────────────────────────────────────────────── */

/* Section wrapper */
.about-section {
  margin-bottom: 56px;
}

.about-section-label {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--brass);
  margin-bottom: 8px;
}

.about-section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  color: var(--paper);
  margin-bottom: 12px;
}

.about-section-intro {
  font-size: 0.97rem;
  color: var(--mist);
  font-style: italic;
  max-width: 640px;
  margin-bottom: 32px;
  line-height: 1.7;
}

/* Two-column feature cards */
.about-cards-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

@media (max-width: 640px) {
  .about-cards-2col { grid-template-columns: 1fr; }
}

.about-feature-card {
  background: var(--ink-soft);
  border: 1px solid var(--ink-mid);
  border-radius: var(--radius-lg);
  padding: 25px 32px 32px 25px;
  transition: border-color var(--transition);
}

.about-feature-card:hover {
  border-color: rgba(200,169,110,0.4);
}

.about-feature-icon {
  font-size: 4rem;
  margin-bottom: 0px;
  text-align: center;

}

.about-feature-card h3 {
  font-family: var(--font-head);
  font-size: 1.25rem;
  color: var(--paper);
  margin-bottom: 10px;
}

.about-feature-card p {
  font-size: 0.9rem;
  color: var(--mist);
  line-height: 1.65;
}

/* Pipeline steps */
.pipeline-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  padding-left: 0;
}

/* Vertical connecting line */
.pipeline-steps::before {
  content: '';
  position: absolute;
  left: 28px;
  top: 40px;
  bottom: 40px;
  width: 1px;
  background: linear-gradient(to bottom,
    var(--brass) 0%,
    rgba(200,169,110,0.2) 100%);
}

.pipeline-step {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  padding: 28px 0;
  border-bottom: 1px solid rgba(46,46,54,0.6);
  position: relative;
}

.pipeline-step:last-child { border-bottom: none; }

.pipeline-num {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--ink-soft);
  border: 1px solid var(--brass);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--brass);
  letter-spacing: 0.06em;
  position: relative;
  z-index: 1;
}

.pipeline-content {
  padding-top: 10px;
  flex: 1;
}

.pipeline-content h4 {
  font-family: var(--font-head);
  font-size: 1.1rem;
  color: var(--paper);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.pipeline-model-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  background: rgba(200,169,110,0.12);
  color: var(--brass);
  border: 1px solid rgba(200,169,110,0.3);
  border-radius: 4px;
  padding: 3px 8px;
}

.pipeline-content p {
  font-size: 0.9rem;
  color: var(--mist);
  line-height: 1.65;
}

/* Models grid */
.models-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.model-card {
  background: var(--ink-soft);
  border: 1px solid var(--ink-mid);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  gap: 18px;
  align-items: flex-start;
  transition: border-color var(--transition), transform var(--transition);
}

.model-card:hover {
  border-color: rgba(200,169,110,0.4);
  transform: translateY(-2px);
}

.model-icon {
  font-size: 1.6rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.model-name {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--brass-pale);
  margin-bottom: 3px;
  letter-spacing: 0.04em;
}

.model-task {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--brass);
  margin-bottom: 10px;
}

.model-desc {
  font-size: 0.84rem;
  color: var(--mist);
  line-height: 1.55;
}

/* Tech pills */
.tech-pills-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-content: center;
  justify-content: center;
}

.tech-pill {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  background: var(--ink-soft);
  border: 1px solid var(--ink-mid);
  border-radius: 20px;
  padding: 6px 16px;
  color: var(--brass-pale);
  transition: border-color var(--transition), color var(--transition);
}

.tech-pill:hover {
  border-color: var(--brass);
  color: var(--brass);
}

/* Socials row */
.about-socials-section {
  text-align: center;
}

.about-socials-section .about-section-title,
.about-socials-section .about-section-label,
.about-socials-section .about-section-intro {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.socials-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  margin-top: 8px;
}

.social-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 26px;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 500;
  text-decoration: none;
  transition: all var(--transition);
  border: 1px solid transparent;
}

.social-icon {
  width: 17px;
  height: 17px;
  flex-shrink: 0;
}

/* GitHub — dark fill */
.social-btn--github {
  background: var(--ink-soft);
  border-color: var(--ink-mid);
  color: var(--paper);
}
.social-btn--github:hover {
  border-color: var(--paper);
  color: var(--paper);
  background: rgba(255,255,255,0.06);
}

/* X — black/white */
.social-btn--x {
  background: #000;
  border-color: #333;
  color: #fff;
}
.social-btn--x:hover {
  border-color: #fff;
  color: #fff;
}

/* LinkedIn — blue */
.social-btn--linkedin {
  background: rgba(10,102,194,0.15);
  border-color: rgba(10,102,194,0.45);
  color: #4da6ff;
}
.social-btn--linkedin:hover {
  background: rgba(10,102,194,0.28);
  border-color: #4da6ff;
  color: #fff;
}

/* Portfolio — brass accent */
.social-btn--portfolio {
  background: rgba(200,169,110,0.1);
  border-color: rgba(200,169,110,0.45);
  color: var(--brass);
}
.social-btn--portfolio:hover {
  background: rgba(200,169,110,0.2);
  border-color: var(--brass-pale);
  color: var(--brass-pale);
}

@media (max-width: 480px) {
  .socials-row { flex-direction: column; align-items: center; }
  .social-btn  { width: 100%; max-width: 260px; justify-content: center; }
}