/* ============================================================
   index-pages.css — index.html + index_en.html 共用樣式
   yhsien-labs / thectx-portal
   ============================================================ */

/* ── LANG TOGGLE（右上角語言切換） ── */
.lang-toggle {
  position: fixed;
  top: 1.2rem;
  right: 1.5rem;
  z-index: 9999;
  font-family: 'Noto Sans Mono', monospace;
  font-size: 0.78rem;
  letter-spacing: 0.15em;
  color: rgba(245,240,232,0.88);
  text-decoration: none;
  border: 1px solid rgba(245,240,232,0.55);
  padding: 0.35rem 0.85rem;
  border-radius: 3px;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
  background: rgba(26,20,16,0.35);
  backdrop-filter: blur(4px);
}
.lang-toggle:hover {
  color: var(--gold-light);
  border-color: var(--gold-light);
  background: rgba(26,20,16,0.55);
}

/* ── HERO ── */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  position: relative;
  overflow: hidden;
}

.hero-left {
  padding: 8vh 6vw 8vh 8vw;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  z-index: 2;
}

.hero-right {
  background: var(--ink);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ── WUXING DIAGRAM ── */
.wuxing-diagram {
  position: relative;
  width: 340px;
  height: 340px;
}

.wuxing-diagram svg {
  width: 100%;
  height: 100%;
  animation: slow-spin 60s linear infinite;
}

@keyframes slow-spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.wuxing-center {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  animation: slow-spin 60s linear infinite reverse;
}

.wuxing-center .cn {
  font-size: 3.5rem;
  font-weight: 900;
  color: var(--gold-light);
  line-height: 1;
  letter-spacing: -0.02em;
}

.wuxing-center .en {
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.82rem;
  color: var(--mist);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-top: 0.4rem;
}

/* ── HEADLINE ── */
.headline-zh {
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: 1rem;
}

.headline-zh em {
  font-style: normal;
  color: var(--gold);
}

.headline-en {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(1rem, 1.8vw, 1.35rem);
  font-weight: 300;
  font-style: italic;
  color: var(--mist);
  margin-bottom: 3rem;
  line-height: 1.6;
}

/* ── CORE CLAIM ── */
.core-claim {
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
  line-height: 1.9;
  font-weight: 400;
  color: var(--ink);
  margin-bottom: 2.5rem;
}

.core-claim strong {
  font-weight: 600;
  color: var(--ink);
}

/* ── PULL QUOTE ── */
.pull-quote {
  border-left: 2px solid var(--gold);
  padding: 1rem 0 1rem 1.5rem;
  margin-bottom: 3rem;
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(1.1rem, 1.8vw, 1.4rem);
  font-style: italic;
  font-weight: 300;
  line-height: 1.7;
  color: #4a3828;
}

/* ── CTA BUTTONS ── */
.cta-row {
  display: flex;
  gap: 1.2rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 0.8rem 2rem;
  font-family: 'Noto Sans Mono', monospace;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all 0.3s ease;
}

.btn-primary {
  background: var(--ink);
  color: var(--paper);
}
.btn-primary:hover {
  background: var(--gold);
  color: var(--ink);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid rgba(26,20,16,0.3);
}
.btn-ghost:hover {
  border-color: var(--gold);
  color: var(--gold);
}

/* ── THREE INSIGHTS ── */
.section-insights {
  padding: 10vh 8vw;
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  font-size: clamp(1.6rem, 2.8vw, 2.4rem);
  font-weight: 900;
  margin-bottom: 5vh;
  line-height: 1.3;
}

.insights-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4vw;
}

.insight-card {
  position: relative;
  padding-top: 2rem;
}

.insight-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 32px;
  height: 2px;
  background: var(--gold);
}

.insight-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 3.5rem;
  font-weight: 300;
  color: var(--line);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.insight-title {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
  line-height: 1.4;
}

.insight-body {
  font-size: 1rem;
  line-height: 1.85;
  font-weight: 400;
  color: #4a3828;
}

.insight-body em {
  font-style: normal;
  font-weight: 600;
  color: var(--ink);
}

/* ── DIALOGUE ── */
.section-dialogue {
  background: var(--ink);
  color: var(--paper);
  padding: 10vh 8vw;
  position: relative;
  overflow: hidden;
}

.section-dialogue::before {
  position: absolute;
  right: 6vw;
  top: 50%;
  transform: translateY(-50%);
  font-size: 16vw;
  font-weight: 900;
  color: rgba(255,255,255,0.03);
  line-height: 1;
  pointer-events: none;
}

.dialogue-inner { max-width: 800px; }

.dialogue-label {
  font-family: 'Noto Sans Mono', monospace;
  font-size: 0.76rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--gold-light);
  margin-bottom: 1rem;
}

.dialogue-title {
  font-size: clamp(1.5rem, 2.5vw, 2.2rem);
  font-weight: 900;
  margin-bottom: 2rem;
  line-height: 1.35;
}

.dialogue-excerpt {
  border-left: 2px solid var(--gold);
  padding: 1.2rem 0 1.2rem 2rem;
  margin-bottom: 2.5rem;
}

.dialogue-excerpt p {
  font-size: 1rem;
  line-height: 2;
  font-weight: 400;
  color: rgba(245,240,232,0.8);
}

.dialogue-excerpt p + p { margin-top: 1rem; }

.dialogue-excerpt .speaker {
  font-family: 'Noto Sans Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: var(--gold-light);
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.4rem;
}

.dialogue-desc {
  font-size: 0.95rem;
  line-height: 1.9;
  color: rgba(245,240,232,0.6);
  margin-bottom: 2.5rem;
  font-weight: 400;
}

/* ── FIVE QUALITIES TABLE ── */
.section-five {
  padding: 10vh 5vw;
  max-width: 1400px;
  margin: 0 auto;
}

.five-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  border: 1px solid var(--line);
  margin-top: 4vh;
}

.five-item {
  padding: 2.5rem 1.2rem;
  border-right: 1px solid var(--line);
  position: relative;
  transition: background 0.3s ease;
}

.five-item:last-child { border-right: none; }
.five-item:hover { background: rgba(184,134,11,0.04); }

.five-char {
  font-size: 2.8rem;
  font-weight: 900;
  line-height: 1;
  margin-bottom: 0.8rem;
}

.five-en {
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.95rem;
  font-style: italic;
  color: var(--gold);
  margin-bottom: 0.6rem;
  display: block;
}

.five-desc {
  font-size: 0.94rem;
  line-height: 1.85;
  font-weight: 400;
  color: #4a3828;
}

/* element colors */
.five-item:nth-child(1) .five-char { color: #2d5a27; }
.five-item:nth-child(2) .five-char { color: #8b2e1a; }
.five-item:nth-child(3) .five-char { color: #7a5c2e; }
.five-item:nth-child(4) .five-char { color: #3d5a6e; }
.five-item:nth-child(5) .five-char { color: #1a3d5a; }

/* ── TERMINAL DEMO ── */
.section-demo {
  background: #0d1117;
  padding: 10vh 8vw;
  position: relative;
}

.section-demo .section-label { color: var(--gold-light); }
.section-demo .section-title { color: var(--paper); margin-bottom: 4vh; }

.terminal-window {
  max-width: 760px;
  border: 1px solid rgba(255,255,255,0.08);
  overflow: hidden;
}

.terminal-bar {
  background: rgba(255,255,255,0.05);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 6px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.terminal-dot:nth-child(1) { background: #ff5f57; }
.terminal-dot:nth-child(2) { background: #febc2e; }
.terminal-dot:nth-child(3) { background: #28c840; }

.terminal-title {
  margin-left: auto;
  font-family: 'Noto Sans Mono', monospace;
  font-size: 0.72rem;
  color: rgba(255,255,255,0.25);
  letter-spacing: 0.1em;
}

.terminal-body {
  padding: 1.8rem 2rem;
  font-family: 'Noto Sans Mono', monospace;
  font-size: 0.82rem;
  line-height: 1.75;
  color: rgba(245,240,232,0.75);
  white-space: pre;
  overflow-x: auto;
  background: #0d1117;
}

.t-cmd  { color: var(--gold-light); }
.t-box  { color: rgba(245,240,232,0.5); }
.t-head { color: rgba(245,240,232,0.9); font-weight: bold; }
.t-good { color: #4caf50; }
.t-warn { color: #ffb347; }
.t-bad  { color: #ef5350; }
.t-dim  { color: rgba(245,240,232,0.35); }
.t-gold { color: var(--gold-light); }

.demo-note {
  margin-top: 2.5rem;
  font-family: 'Noto Sans Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: rgba(245,240,232,0.38);
}

/* ── TERMINAL TABS ── */
.tab-bar {
  display: flex;
  gap: 0;
  margin-bottom: 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.tab-btn {
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 0.7rem 1.4rem;
  font-family: 'Noto Sans Mono', monospace;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(245,240,232,0.65);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
  margin-bottom: -1px;
}
.tab-btn:hover { color: rgba(245,240,232,0.92); }
.tab-btn.active {
  color: var(--gold-light);
  border-bottom-color: var(--gold-light);
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

.tab-note {
  margin-top: 1.2rem;
  font-family: 'Noto Sans Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: rgba(245,240,232,0.38);
  line-height: 1.7;
}

/* ── DONATION ── */
.section-donate {
  padding: 10vh 8vw;
  background: rgba(184,134,11,0.03);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.donate-desc {
  font-size: 0.95rem;
  line-height: 1.9;
  font-weight: 400;
  color: #4a3828;
  margin-bottom: 5vh;
  max-width: 600px;
}

.donate-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2vw;
  max-width: 860px;
  margin-bottom: 4vh;
}

.donate-card {
  padding: 2rem 1.8rem;
  border: 1px solid var(--line);
  position: relative;
}

.donate-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 32px;
  height: 2px;
  background: var(--gold);
}

.donate-label {
  font-family: 'Noto Sans Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.8rem;
}

.donate-method {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
}

.donate-addr {
  font-family: 'Noto Sans Mono', monospace;
  font-size: 0.75rem;
  color: #4a3828;
  word-break: break-all;
  line-height: 1.7;
  display: block;
}

.donate-link {
  font-family: 'Noto Sans Mono', monospace;
  font-size: 0.82rem;
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(184,134,11,0.3);
  transition: border-color 0.2s;
}
.donate-link:hover { border-color: var(--gold); }

.donate-addr-link {
  text-decoration: none;
  display: block;
}
.donate-addr-link:hover .donate-addr { color: var(--gold); }

.donate-note {
  font-size: 0.82rem;
  color: var(--mist);
  line-height: 1.7;
  margin-top: 0.6rem;
  font-weight: 300;
}

.donate-quote {
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-size: 1.05rem;
  color: var(--mist);
  font-weight: 300;
  letter-spacing: 0.02em;
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .hero { grid-template-columns: 1fr; }
  .hero-right { min-height: 40vh; }
  .insights-grid { grid-template-columns: 1fr; gap: 3rem; }
  .five-grid { grid-template-columns: 1fr 1fr; }
  .five-item:nth-child(5) { border-right: none; }
  .donate-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .footer { flex-direction: column; align-items: flex-start; }

  .headline-zh  { font-size: 2.6rem; }
  .headline-en  { font-size: 1.15rem; }
  .core-claim   { font-size: 1.05rem; }
  .pull-quote   { font-size: 1.15rem; }
  .section-title   { font-size: 1.9rem; }
  .dialogue-title  { font-size: 1.8rem; }

  .eyebrow                    { font-size: 0.88rem; }
  .btn                        { font-size: 0.88rem; }
  .section-label              { font-size: 0.85rem; }
  .dialogue-label             { font-size: 0.85rem; }
  .terminal-title             { font-size: 0.78rem; }
  .terminal-body              { font-size: 0.88rem; }
  .demo-note                  { font-size: 0.82rem; }
  .donate-label               { font-size: 0.82rem; }
  .donate-addr                { font-size: 0.82rem; }
  .donate-note                { font-size: 0.88rem; }
  .footer-left .project       { font-size: 0.82rem; }
  .footer-right               { font-size: 0.78rem; }
  .footer-right .tagline      { font-size: 0.9rem; }
  .dialogue-excerpt .speaker  { font-size: 0.82rem; }

  .insight-title      { font-size: 1.15rem; }
  .insight-body       { font-size: 1rem; }
  .dialogue-excerpt p { font-size: 1rem; }
  .dialogue-desc      { font-size: 1rem; }
  .five-en            { font-size: 1rem; }
  .five-desc          { font-size: 1rem; }
  .donate-desc        { font-size: 1rem; }
  .footer-left .author { font-size: 1rem; }

  .tab-btn { font-size: 0.82rem; padding: 0.7rem 1rem; }
}