/* ============================================================
   vedanta.study — Upaniṣad Study Companion styles
   Extends common/css/styles.css design tokens
============================================================ */

/* ── Hero ── */
.up-hero {
  padding: 56px 0 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.up-hero .section-label { margin-bottom: 10px; }
.up-hero h1 { margin-bottom: 14px; }
.up-hero .up-sub {
  max-width: 720px; margin: 0 auto 8px;
  color: var(--text-muted); font-size: 1.02rem;
}
.up-om-mark {
  position: absolute; right: -40px; top: -30px;
  font-family: var(--font-heading);
  font-size: 220px; line-height: 1;
  color: var(--accent); opacity: 0.05;
  user-select: none; pointer-events: none;
}

/* ── Search ── */
.up-search-wrap {
  max-width: 640px; margin: 26px auto 0; position: relative;
}
.up-search {
  width: 100%; padding: 14px 48px 14px 20px;
  border: 1.5px solid var(--border); border-radius: 100px;
  background: var(--bg-card); font-size: 0.95rem;
  color: var(--text); transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
.up-search:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-light); }
.up-search-wrap .fa-magnifying-glass {
  position: absolute; right: 20px; top: 50%; transform: translateY(-50%);
  color: var(--text-light);
}
.up-search-hint {
  text-align: center; font-size: 0.8rem; color: var(--text-light); margin-top: 10px;
}
.up-search-count {
  text-align: center; font-size: 0.85rem; color: var(--accent-dark);
  margin-top: 8px; min-height: 1.2em;
}

/* ── Mahāvākya strip ── */
.mahavakya-strip { padding: 34px 0 10px; }
.mahavakya-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
}
.mahavakya-card {
  background: linear-gradient(160deg, var(--accent-light), var(--bg-card));
  border: 1px solid var(--border-light); border-radius: var(--radius-lg);
  padding: 20px 18px; text-align: center;
  transition: var(--transition);
}
.mahavakya-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.mahavakya-card .mv-dev {
  font-family: var(--font-heading); font-size: 1.3rem; color: var(--accent-dark);
  margin-bottom: 4px;
}
.mahavakya-card .mv-iast { font-style: italic; font-size: 0.88rem; color: var(--text); }
.mahavakya-card .mv-meaning { font-size: 0.82rem; color: var(--text-muted); margin-top: 6px; }
.mahavakya-card .mv-src {
  display: inline-block; margin-top: 10px; font-size: 0.72rem; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--accent); font-weight: 600;
}

/* ── Landing grid of 12 ── */
.up-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px;
  margin-top: 30px;
}
.up-card {
  background: var(--bg-card); border: 1px solid var(--border-light);
  border-radius: var(--radius-lg); padding: 24px 22px 20px;
  box-shadow: var(--shadow-sm); transition: var(--transition);
  display: flex; flex-direction: column; position: relative;
}
.up-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--border); }
.up-card-top { display: flex; align-items: center; gap: 14px; margin-bottom: 12px; }
.up-card-num {
  width: 34px; height: 34px; flex: 0 0 34px; border-radius: 50%;
  background: var(--accent); color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-heading); font-size: 1rem; font-weight: 600;
}
.up-card h3 { font-size: 1.22rem; }
.up-card h3 a::after { content: ''; position: absolute; inset: 0; }
.up-card-icon { margin-left: auto; flex: 0 0 44px; width: 44px; height: 44px; color: var(--accent); opacity: 0.9; }
.up-card-icon svg { width: 100%; height: 100%; }
.up-card-summary { font-size: 0.88rem; color: var(--text-muted); margin-bottom: 14px; line-height: 1.55; }
.up-card-facts { font-size: 0.84rem; display: grid; gap: 6px; margin-bottom: 14px; }
.up-card-facts .fact { display: grid; grid-template-columns: 96px 1fr; gap: 8px; }
.up-card-facts .fact b { color: var(--text); font-weight: 600; }
.up-card-facts .fact span { color: var(--text-muted); }
.up-card-message {
  margin-top: auto; background: var(--accent-light); border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm); padding: 10px 12px;
  font-size: 0.85rem; color: var(--accent-dark); font-style: italic;
}
.up-card .up-card-open {
  margin-top: 14px; font-size: 0.82rem; font-weight: 600; color: var(--accent);
}
.up-card.hidden-by-search { display: none; }

/* ── Detail page ── */
.upd-breadcrumb {
  font-size: 0.82rem; color: var(--text-light); padding: 18px 0 0;
}
.upd-breadcrumb a { color: var(--accent); }
.upd-hero { padding: 30px 0 24px; }
.upd-hero-inner { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.upd-hero-icon { width: 72px; height: 72px; color: var(--accent); flex: 0 0 72px; }
.upd-hero-icon svg { width: 100%; height: 100%; }
.upd-hero h1 { font-size: clamp(1.7rem, 4vw, 2.5rem); }
.upd-hero .upd-dev-title { font-family: var(--font-heading); color: var(--accent-dark); font-size: 1.1rem; margin-top: 2px; }
.upd-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.upd-chip {
  font-size: 0.76rem; padding: 5px 12px; border-radius: 100px;
  background: var(--bg-surface); border: 1px solid var(--border-light); color: var(--text-muted);
}
.upd-chip b { color: var(--text); }
.upd-about {
  background: var(--bg-card); border: 1px solid var(--border-light);
  border-radius: var(--radius-lg); padding: 22px 24px; margin: 8px 0 26px;
  font-size: 0.94rem; color: var(--text-muted); line-height: 1.7;
}
.upd-about .upd-keymsg {
  margin-top: 12px; background: var(--accent-light); border-left: 3px solid var(--accent);
  padding: 10px 14px; border-radius: var(--radius-sm);
  color: var(--accent-dark); font-style: italic;
}

/* Toolbar */
.upd-toolbar {
  display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 18px;
}
.upd-toolbar .up-search-wrap { margin: 0; flex: 1; min-width: 220px; }
.upd-toolbar .up-search { padding: 11px 44px 11px 18px; font-size: 0.88rem; }
.upd-toolbar .btn-ghost { white-space: nowrap; }

/* Section headings within a text */
.upd-section-head {
  font-family: var(--font-heading); font-size: 1.25rem; color: var(--text);
  margin: 30px 0 6px; padding-bottom: 8px; border-bottom: 1px solid var(--border-light);
  display: flex; align-items: baseline; gap: 10px;
}
.upd-section-head .sec-sub { font-family: var(--font-body); font-size: 0.82rem; color: var(--text-light); }

/* Mantra accordion */
.mantra {
  background: var(--bg-card); border: 1px solid var(--border-light);
  border-radius: var(--radius); margin: 10px 0; overflow: hidden;
  transition: var(--transition);
}
.mantra.open { box-shadow: var(--shadow-sm); border-color: var(--border); }
.mantra-toggle {
  width: 100%; text-align: left; padding: 14px 18px;
  display: flex; gap: 14px; align-items: baseline;
  font-family: var(--font-body); color: var(--text);
}
.mantra-toggle:hover { background: var(--bg-surface); }
.mantra-no {
  flex: 0 0 auto; font-family: var(--font-heading); font-weight: 600;
  color: var(--accent); font-size: 0.95rem; min-width: 44px;
}
.mantra-key {
  flex: 1; font-size: 0.9rem; color: var(--text); font-weight: 500;
}
.mantra-toggle .chev { color: var(--text-light); transition: transform var(--transition); }
.mantra.open .chev { transform: rotate(180deg); }
.mantra-body { display: none; padding: 4px 20px 20px; border-top: 1px dashed var(--border-light); }
.mantra.open .mantra-body { display: block; }

.m-label {
  font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent); font-weight: 700; margin: 16px 0 6px;
}
.m-dev {
  font-family: var(--font-heading); font-size: 1.18rem; line-height: 1.9; color: var(--text);
}
.m-iast { font-style: italic; color: var(--text-muted); font-size: 0.95rem; line-height: 1.8; }
.m-words { width: 100%; border-collapse: collapse; font-size: 0.86rem; }
.m-words td { padding: 5px 10px; border-bottom: 1px solid var(--border-light); vertical-align: top; }
.m-words td:first-child { font-style: italic; color: var(--accent-dark); white-space: nowrap; width: 34%; }
.m-words td:last-child { color: var(--text-muted); }
.m-trans { font-size: 0.95rem; line-height: 1.75; }
.m-keymsg {
  margin-top: 14px; background: var(--accent-light); border-left: 3px solid var(--accent);
  padding: 10px 14px; border-radius: var(--radius-sm);
  color: var(--accent-dark); font-size: 0.9rem; font-style: italic;
}
.m-comm { font-size: 0.9rem; color: var(--text-muted); line-height: 1.7; }
.m-comm .comm-src { display: block; margin-top: 8px; font-size: 0.76rem; color: var(--text-light); }

/* Phase note + sources */
.upd-phase-note {
  background: var(--bg-surface); border: 1px dashed var(--border);
  border-radius: var(--radius); padding: 14px 16px; font-size: 0.84rem;
  color: var(--text-muted); margin: 20px 0;
}
.upd-sources {
  margin: 34px 0 10px; padding-top: 18px; border-top: 1px solid var(--border-light);
  font-size: 0.82rem; color: var(--text-light); line-height: 1.7;
}
.upd-nav-links { display: flex; justify-content: space-between; gap: 12px; margin: 26px 0 10px; flex-wrap: wrap; }

/* Responsive */
@media (max-width: 960px) {
  .up-grid { grid-template-columns: repeat(2, 1fr); }
  .mahavakya-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .up-grid { grid-template-columns: 1fr; }
  .mahavakya-grid { grid-template-columns: 1fr; }
  .up-card-facts .fact { grid-template-columns: 88px 1fr; }
  .upd-hero-inner { gap: 14px; }
}