/* ═══════════════════════════════════════════════════════════
   IDEAS LAB — page-specific styles
   Requires: styles.css
═══════════════════════════════════════════════════════════ */

/* ── HEADER ── */
header { padding: 140px 0 64px; }

.header-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 16px;
  width: fit-content;
}

.header-label::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 6px var(--gold);
  flex-shrink: 0;
}

body.light .header-label {
  color: var(--nature);
  font-weight: 600;
}

body.light .header-label::before {
  background: var(--nature);
  box-shadow: 0 0 6px rgba(var(--accent-rgb), 0.4);
}

h1 {
  display: block;
  width: 100%;
  font-family: var(--font-display);
  font-size: clamp(42px, 6vw, 68px);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--text);
  margin-bottom: 20px;
}

h1 em { font-style: italic; color: var(--gold); }

.header-desc {
  font-family: var(--font-serif);
  font-size: 16px;
  line-height: 1.75;
  color: var(--sub);
  max-width: 520px;
  margin-bottom: 40px;
}

/* ── COUNTER BAR ── */
.counter-bar {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 56px;
}

.counter-item {
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.counter-num {
  font-size: 28px;
  font-weight: 500;
  color: var(--text);
  line-height: 1;
}

.counter-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--sub);
}

.counter-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  display: inline-block;
  margin-right: 4px;
  position: relative;
  top: -1px;
}

/* ── FILTER ROW ── */
.filter-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.filter-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-right: 4px;
}

.filter-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--sub);
  padding: 6px 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.2s;
  border-radius: var(--radius);
}

.filter-btn:hover  { border-color: var(--gold); color: var(--gold); }
.filter-btn.active { background: var(--gold); border-color: var(--gold); color: var(--bg); }

/* ── IDEAS GRID ── */
.ideas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
  gap: 2px;
  margin-bottom: 80px;
}

/* ── IDEA CARD ── */
.idea-card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 28px 30px 24px;
  position: relative;
  transition: border-color 0.25s, transform 0.25s;
  overflow: hidden;
}

/* Top accent bar on hover */
.idea-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--card-accent, var(--gold)), transparent);
  opacity: 0;
  transition: opacity 0.25s;
}

.idea-card:hover { border-color: var(--card-accent, var(--gold)); transform: translateY(-2px); }
.idea-card:hover::before { opacity: 1; }

/* Per-status accent colour */
.idea-card[data-status="thinking"]  { --card-accent: var(--thinking); }
.idea-card[data-status="exploring"] { --card-accent: var(--exploring); }
.idea-card[data-status="building"]  { --card-accent: var(--building); }
.idea-card[data-status="dropped"]   { --card-accent: var(--dropped); }

.card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.idea-num {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.08em;
  flex-shrink: 0;
  margin-top: 2px;
}

.idea-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--text);
  margin-bottom: 8px;
}

.idea-hook {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 13px;
  color: var(--gold);
  margin-bottom: 14px;
  line-height: 1.5;
}

.idea-body {
  font-size: 13px;
  color: var(--sub);
  line-height: 1.7;
  margin-bottom: 20px;
}

.idea-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin-bottom: 16px;
}

.real-line {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.6;
}

.real-line strong { color: var(--sub); font-weight: 500; }

/* Hidden cards */
.idea-card.hidden { display: none; }

/* ── PRINCIPLE BLOCK ── */
.principle {
  border: 1px solid var(--border);
  padding: 44px 52px;
  margin-bottom: 80px;
  position: relative;
  text-align: center;
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
}

.principle::before,
.principle::after {
  content: '“';
  font-family: var(--font-display);
  font-size: 64px;
  color: var(--gold-dim);
  position: absolute;
  line-height: 1;
  pointer-events: none;
  opacity: 0.35;
}

.principle::before { top: 12px; left: 20px; }
.principle::after { content: '”'; bottom: 8px; right: 20px; }

.principle p {
  font-family: var(--font-display);
  font-size: clamp(18px, 2.5vw, 26px);
  font-style: italic;
  color: var(--text);
  line-height: 1.5;
  position: relative;
  z-index: 1;
}

/* ── SIMPLE FOOTER (for this page) ── */
footer.page-footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  color: var(--faint);
  letter-spacing: 0.06em;
}

footer.page-footer .footer-nav { display: flex; gap: 24px; }
footer.page-footer .footer-nav a { color: var(--faint); transition: color 0.2s; }
footer.page-footer .footer-nav a:hover { color: var(--gold); }

/* ── RESPONSIVE ── */
@media (max-width: 640px) {
  .ideas-grid { grid-template-columns: 1fr; }
  .principle  { padding: 32px 24px; }
  header      { padding: 100px 0 48px; }
  footer.page-footer { flex-direction: column; gap: 16px; }
}

/* ── COMPREHENSIVE MOBILE & TOUCH REDESIGN (<= 640px) ── */
@media (max-width: 640px) {
  header h1 {
    font-size: clamp(38px, 11vw, 56px);
    line-height: 1.05;
  }

  .header-desc {
    font-size: 15px;
    line-height: 1.6;
    max-width: 100%;
  }

  .counter-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-top: 24px;
    padding-top: 18px;
  }

  .counter-item {
    padding: 10px 12px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 6px;
  }

  .counter-num {
    font-size: 20px;
  }

  /* Horizontal swipeable filter row */
  .filter-row {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 8px;
    margin-right: -16px;
    padding-right: 16px;
    gap: 8px;
  }

  .filter-row::-webkit-scrollbar {
    display: none;
  }

  .filter-label {
    flex-shrink: 0;
    align-self: center;
  }

  .filter-btn {
    flex-shrink: 0;
    min-height: 38px;
    padding: 6px 14px;
    white-space: nowrap;
    font-size: 11px;
  }

  /* Ideas Cards */
  .idea-card {
    padding: 22px 18px;
  }

  .idea-title {
    font-size: 19px;
  }

  .idea-body {
    font-size: 14px;
    line-height: 1.65;
  }

  .principle {
    padding: 28px 20px;
  }

  .principle p {
    font-size: 16px;
    line-height: 1.6;
  }
}