/* ============================================================
   SurvAI Hub — Stylesheet
   Colors: GESIS Design System
   ============================================================ */

/* ── Variables ─────────────────────────────────────────────── */
:root {
  /* GESIS colors */
  --gs-lightblue:          #1E8CC8;
  --gs-lightblue-hover:    #105F94;
  --gs-lightblue-text:     #1B7DB1;
  --gs-lightblue-65:       #6DB4DB;
  --gs-lightblue-40:       #A5D1E9;
  --gs-lightblue-25:       #C7E2F1;
  --gs-lightblue-14:       #dfeff7;
  --gs-lightblue-8:        #EDF6FB;

  --gs-darkblue:           #003C78;
  --gs-darkblue-hover:     #002F5E;
  --gs-darkblue-pressed:   #00264B;
  --gs-darkblue-65:        #5980A7;
  --gs-darkblue-40:        #99B1C9;
  --gs-darkblue-25:        #BFCEDD;
  --gs-darkblue-14:        #dbe3ec;

  --gs-pink:               #d20064;
  --gs-pink-hover:         #B00453;
  --gs-pink-85:            #D9277C;
  --gs-pink-65:            #E25A9B;
  --gs-pink-40:            #ED99C1;
  --gs-pink-25:            #F4BFD8;
  --gs-pink-14:            #F9DBE9;

  --gs-berry:              #642878;
  --gs-berry-65:           #9A73A7;
  --gs-berry-25:           #E9E1EC;
  --gs-berry-14:           #E9E1EC;

  --gs-turquoise:          #64afaf;
  --gs-turquoise-14:       #e9f4f4;
  --gs-orange:             #f08741;
  --gs-orange-14:          #fdeee4;
  --gs-yellow:             #FAD205;
  --gs-yellow-14:          #fff9db;
  --gs-petrol:             #006a82;
  --gs-petrol-14:          #dbeaed;
  --gs-lightpink:          #c873a0;
  --gs-lightpink-14:       #f7ebf2;
  --gs-olive:              #699e6e;
  --gs-olive-14:           #eaf1ea;
  --gs-rust:               #aa4137;
  --gs-rust-14:            #f3e4e2;

  /* Semantic mappings */
  --color-bg:              #f5f7fa;
  --color-surface:         #ffffff;
  --color-surface-alt:     #f0f3f7;
  --color-border:          #d0d9e4;
  --color-border-light:    #e2e8f0;

  --color-text-primary:    #0d1b2e;
  --color-text-secondary:  #3d5068;
  --color-text-muted:      #7a8fa8;

  --color-accent:          var(--gs-darkblue);
  --color-accent-hover:    var(--gs-darkblue-hover);
  --color-accent-light:    var(--gs-darkblue-14);
  --color-accent-mid:      var(--gs-darkblue-40);

  --color-header-bg:       var(--gs-darkblue-pressed);
  --color-header-text:     #f0f4f8;

  --font-body:    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-cite:    Georgia, 'Times New Roman', serif;

  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  12px;

  --shadow-card: 0 1px 3px rgba(0,0,0,0.07), 0 2px 8px rgba(0,0,0,0.04);
  --shadow-card-hover: 0 2px 6px rgba(0,0,0,0.10), 0 4px 16px rgba(0,0,0,0.06);

  --transition: 200ms ease;
  --max-width:  980px;
}

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.65;
  color: var(--color-text-primary);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-body);
  margin: 0;
  line-height: 1.25;
}

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

a { color: var(--gs-lightblue-text); text-decoration: none; }
a:hover { color: var(--gs-lightblue-hover); text-decoration: underline; }
a:focus-visible {
  outline: 2px solid var(--gs-lightblue);
  outline-offset: 2px;
  border-radius: 2px;
}

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

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

/* ── Site Header ────────────────────────────────────────────── */
#site-header {
  background: var(--color-header-bg);
  color: var(--color-header-text);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 3px solid var(--gs-pink);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  gap: 16px;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 16px;
  color: var(--color-header-text);
  white-space: nowrap;
  letter-spacing: -0.01em;
}

.header-logo { color: var(--gs-lightblue-65); font-size: 12px; }

.header-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.header-nav a {
  color: rgba(240,244,248,0.75);
  font-size: 14px;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}

.header-nav a:hover {
  color: var(--color-header-text);
  background: rgba(255,255,255,0.08);
  text-decoration: none;
}

/* ── Hero ───────────────────────────────────────────────────── */
#hero {
  background: linear-gradient(135deg, var(--gs-darkblue-pressed) 0%, var(--gs-darkblue) 60%, #005a8e 100%);
  padding: 52px 0 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

#hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gs-pink), var(--gs-lightblue), var(--gs-pink));
}

.hero-title {
  font-size: 2.2rem;
  font-weight: 700;
  color: #f0f4f8;
  letter-spacing: -0.025em;
  margin-bottom: 18px;
}

.hero-description {
  max-width: 640px;
  margin: 0 auto;
  color: rgba(240,244,248,0.78);
  font-size: 15.5px;
  line-height: 1.7;
}

/* ── Stats Bar ──────────────────────────────────────────────── */
#stats-bar {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}

.stats-bar-inner {
  display: flex;
  align-items: stretch;
  justify-content: center;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 18px 36px;
}

.stat-number {
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--gs-darkblue);
  line-height: 1;
  margin-bottom: 4px;
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--color-text-muted);
  font-weight: 500;
}

.stat-divider {
  width: 1px;
  background: var(--color-border);
  margin: 12px 0;
}

/* ── Controls ───────────────────────────────────────────────── */
#catalog-section { padding: 40px 0 64px; }

#controls {
  margin-bottom: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.controls-row {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  flex-wrap: wrap;
}

.controls-row--search { flex-wrap: nowrap; align-items: center; }

.search-wrapper {
  position: relative;
  width: 100%;
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--color-text-muted);
  pointer-events: none;
}

#search-input {
  width: 100%;
  padding: 10px 14px 10px 38px;
  font-family: var(--font-body);
  font-size: 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text-primary);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

#search-input:focus {
  border-color: var(--gs-lightblue);
  box-shadow: 0 0 0 3px rgba(30,140,200,0.15);
}

#search-input::placeholder { color: var(--color-text-muted); }

/* ── Multi-select filter groups ─────────────────────────────── */
.filter-group {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 140px;
  flex: 1;
}

.filter-group label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-secondary);
}

.filter-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  padding: 7px 10px;
  font-family: var(--font-body);
  font-size: 13px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text-primary);
  cursor: pointer;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  text-align: left;
  white-space: nowrap;
  overflow: hidden;
  width: 100%;
}

.filter-btn:focus, .filter-btn.open {
  border-color: var(--gs-lightblue);
  box-shadow: 0 0 0 3px rgba(30,140,200,0.15);
}

.filter-btn-text {
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
  color: var(--color-text-muted);
}

.filter-btn-text.has-selection {
  color: var(--gs-darkblue);
  font-weight: 600;
}

.filter-btn-chevron {
  font-size: 9px;
  color: var(--color-text-muted);
  flex-shrink: 0;
  transition: transform 200ms ease;
}

.filter-btn.open .filter-btn-chevron { transform: rotate(180deg); }

.filter-group-inner { position: relative; }

.filter-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  min-width: 100%;
  max-width: 300px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: 0 4px 20px rgba(0,0,0,0.12);
  z-index: 200;
  overflow: hidden;
  display: none;
}

.filter-dropdown.open { display: block; }

.filter-dropdown-inner {
  max-height: 260px;
  overflow-y: auto;
  padding: 6px 0;
}

.filter-option {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  font-size: 13px;
  cursor: pointer;
  transition: background var(--transition);
  user-select: none;
}

.filter-option:hover { background: var(--gs-lightblue-8); }

.filter-option.disabled {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: none;
}

.filter-option input[type="checkbox"] {
  width: 14px;
  height: 14px;
  margin: 0;
  accent-color: var(--gs-darkblue);
  cursor: pointer;
  flex-shrink: 0;
}

.filter-option span { line-height: 1.3; }

/* native select fallback */
select.filter-btn {
  padding-right: 28px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%237a8fa8' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  -webkit-appearance: none;
  appearance: none;
}

/* ── Meta row ───────────────────────────────────────────────── */
.controls-row--meta {
  justify-content: space-between;
  align-items: center;
  padding-top: 2px;
}

#result-count {
  font-size: 13px;
  color: var(--color-text-muted);
}

.btn-clear {
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--gs-pink);
  background: none;
  border: 1px solid var(--gs-pink-40);
  border-radius: var(--radius-sm);
  padding: 4px 12px;
  cursor: pointer;
  transition: background var(--transition);
}
.btn-clear:hover { background: var(--gs-pink-14); }

/* ── Catalog loading / empty ────────────────────────────────── */
.catalog-loading,
.catalog-empty {
  text-align: center;
  padding: 64px 24px;
  color: var(--color-text-muted);
  font-size: 15px;
}

.catalog-empty strong {
  display: block;
  font-size: 17px;
  color: var(--color-text-secondary);
  margin-bottom: 8px;
}

/* ── Paper Card ─────────────────────────────────────────────── */
#catalog {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.paper-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: box-shadow var(--transition), border-color var(--transition);
}

.paper-card:hover { box-shadow: var(--shadow-card-hover); }

.paper-card:target {
  border-color: var(--gs-lightblue);
  box-shadow: 0 0 0 3px rgba(30,140,200,0.15), var(--shadow-card-hover);
}

.card-head { padding: 18px 22px 14px; }

.card-meta-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

/* publication badge */
.badge-publication {
  display: inline-flex;
  align-items: center;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 3px 9px;
  border-radius: 100px;
  border: 1px solid;
  white-space: nowrap;
  background: var(--gs-darkblue-25);
  color: var(--gs-darkblue);
  border-color: var(--gs-darkblue-65);
}
.badge-publication.preprint {
  background: var(--gs-pink-25);
  color: var(--gs-pink);
  border-color: var(--gs-pink-65);
}
.badge-publication.conference {
  background: var(--gs-lightblue-25);
  color: var(--gs-lightblue);
  border-color: var(--gs-lightblue-65);
}

.card-year {
  font-size: 12px;
  color: var(--color-text-muted);
  font-weight: 600;
}

.badge-silicon {
  display: inline-flex;
  align-items: center;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 3px 9px;
  border-radius: 100px;
  border: 1px solid;
  background: var(--gs-yellow-14);
  color: var(--gs-orange);
  border-color: var(--gs-yellow);
  white-space: nowrap;
}

.card-name {
  font-size: 1.08rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 12px;
  line-height: 1.4;
  letter-spacing: -0.01em;
}

.card-name a {
  color: inherit;
  transition: color var(--transition);
}
.card-name a:hover { color: var(--gs-lightblue-text); text-decoration: none; }

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

/* ── Tags ───────────────────────────────────────────────────── */
.tag {
  display: inline-block;
  font-size: 11.5px;
  padding: 2px 9px;
  border-radius: 100px;
  border: 1px solid;
  white-space: nowrap;
  font-weight: 500;
}

/*.tag-phase      { background: var(--gs-lightpink-14);  color: var(--gs-lightpink);    border-color: var(--gs-lightpink); }
.tag-task       { background: var(--gs-olive-14);      color: #3a5c3d;              border-color: #9fbe9f; }
.tag-llm        { background: var(--gs-orange-14);     color: #7a4010;              border-color: #e0a87a; }
.tag-lang       { background: var(--gs-petrol-14);     color: var(--gs-petrol);       border-color: #7ab4c0; }
.tag-approach   { background: var(--gs-berry-14);      color: var(--gs-berry);        border-color: var(--gs-berry-65); }
.tag-population { background: var(--gs-turquoise-14);  color: #2d6b6b;              border-color: #8fcfcf; }
.tag-datatype   { background: var(--gs-rust-14);       color: var(--gs-rust);         border-color: #cc8880; }
*/
.tag-phase       { background: var(--gs-olive-14);      color: #3a5c3d;              border-color: #9fbe9f; }
.tag-task       { background: var(--gs-petrol-14);     color: var(--gs-petrol);       border-color: #7ab4c0; }
.tag-llm { background: var(--gs-turquoise-14);  color: #2d6b6b;              border-color: #8fcfcf; }
.tag-approach   { background: var(--gs-berry-14);      color: var(--gs-berry);        border-color: var(--gs-berry-65); }
.tag-lang      { background: var(--gs-lightpink-14);  color: var(--gs-lightpink);    border-color: var(--gs-lightpink); }
.tag-population   { background: var(--gs-rust-14);       color: var(--gs-rust);         border-color: #cc8880; }
.tag-datatype        { background: var(--gs-orange-14);     color: #7a4010;              border-color: #e0a87a; }

/* ── Card toggle bar ────────────────────────────────────────── */
.card-toggle-bar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 9px 22px;
  border-top: 1px solid var(--color-border-light);
  background: var(--color-surface-alt);
}

.btn-toggle {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  color: var(--gs-darkblue);
  background: none;
  border: 1px solid var(--gs-darkblue-40);
  border-radius: var(--radius-sm);
  padding: 5px 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: background var(--transition), color var(--transition);
}
.btn-toggle:hover { background: var(--gs-darkblue-14); }

.toggle-chevron {
  display: inline-block;
  transition: transform 250ms ease;
  font-size: 10px;
  line-height: 1;
}
.paper-card.expanded .toggle-chevron { transform: rotate(180deg); }

/* ── Card detail (expanded) ─────────────────────────────────── */
.card-detail {
  max-height: 0;
  overflow: hidden;
  transition: max-height 400ms ease;
}
.paper-card.expanded .card-detail { max-height: 3000px; }

.card-detail-inner {
  padding: 24px 22px 22px;
  border-top: 1px solid var(--color-border-light);
}

.detail-section { margin-bottom: 24px; }
.detail-section:last-child { margin-bottom: 0; }

.detail-section h4 {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--color-text-muted);
  margin-bottom: 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--color-border-light);
}

.abstract-text {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.75;
}

.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 24px;
}

.detail-row {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.detail-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
}

.detail-value {
  font-size: 13.5px;
  color: var(--color-text-primary);
}
.detail-value a { word-break: break-all; }

/* Citation block */
.citation-block {
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--gs-darkblue);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 12px 14px;
}

.citation-text {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  font-family: var(--font-cite);
}

.citation-actions {
  margin-top: 8px;
  display: flex;
  gap: 8px;
}

.btn-copy {
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--gs-darkblue);
  background: var(--color-surface);
  border: 1px solid var(--gs-darkblue-40);
  border-radius: var(--radius-sm);
  padding: 4px 12px;
  cursor: pointer;
  transition: background var(--transition);
}
.btn-copy:hover { background: var(--gs-darkblue-14); }
.btn-copy.copied {
  color: var(--gs-petrol);
  border-color: #7ab4c0;
  background: var(--gs-petrol-14);
}

.btn-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-body);
  font-size: 12.5px;
  color: var(--gs-darkblue);
  background: var(--color-surface);
  border: 1px solid var(--gs-darkblue-40);
  border-radius: var(--radius-sm);
  padding: 5px 12px;
  text-decoration: none;
  transition: background var(--transition);
}
.btn-link:hover {
  background: var(--gs-darkblue-14);
  text-decoration: none;
  color: var(--gs-darkblue-hover);
}

/* ── About Section ──────────────────────────────────────────── */
#about {
  background: var(--color-surface-alt);
  border-top: 1px solid var(--color-border);
  padding: 56px 0;
}

#about h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--gs-pink);
  letter-spacing: -0.015em;
}

#about h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin: 28px 0 10px;
}

#about p {
  color: var(--color-text-secondary);
  font-size: 14.5px;
  line-height: 1.7;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 8px;
}

.about-block {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px 22px;
}

.about-block h3 { margin-top: 0; margin-bottom: 10px; font-size: 1rem; }

.schema-table-wrapper {
  overflow-x: auto;
  margin: 12px 0 8px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.schema-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}

.schema-table th {
  background: var(--gs-darkblue-14);
  font-weight: 600;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--gs-darkblue);
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.schema-table td {
  padding: 9px 14px;
  border-bottom: 1px solid var(--color-border-light);
  color: var(--color-text-secondary);
  vertical-align: top;
}

.schema-table tr:last-child td { border-bottom: none; }
.schema-table tr:hover td { background: var(--gs-lightblue-8); }
.schema-table td:first-child { font-weight: 500; color: var(--color-text-primary); white-space: nowrap; }
.schema-table td:nth-child(2) { color: var(--color-text-muted); white-space: nowrap; }

/* ── Footer ─────────────────────────────────────────────────── */
#site-footer {
  background: var(--gs-darkblue-pressed);
  color: rgba(240,244,248,0.55);
  padding: 20px 0;
  font-size: 13px;
  border-top: 3px solid var(--gs-pink);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-inner a { color: rgba(240,244,248,0.65); transition: color var(--transition); }
.footer-inner a:hover { color: var(--color-header-text); text-decoration: none; }
.footer-sep { color: rgba(240,244,248,0.25); }

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 680px) {
  .header-inner { height: auto; padding: 10px 0; flex-wrap: wrap; gap: 8px; }
  .header-nav { flex-wrap: wrap; gap: 2px; }
  .header-nav a { font-size: 12.5px; padding: 5px 8px; }
  #hero { padding: 36px 0 40px; }
  .hero-title { font-size: 1.6rem; }
  .stats-bar-inner { flex-wrap: wrap; justify-content: space-around; }
  .stat-item { padding: 14px 16px; }
  .controls-row--filters { flex-direction: column; }
  .filter-group { width: 100%; }
  .about-grid { grid-template-columns: 1fr; }
  .detail-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; text-align: center; gap: 6px; }
  .footer-sep { display: none; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .card-head { padding: 16px 16px 12px; }
  .card-toggle-bar { padding: 9px 16px; }
  .card-detail-inner { padding: 18px 16px 16px; }
}