/* ═══════════════════════════════════════════════════════
   愿力源蒸馏模型 · Vow-Power Source Distillation Model
   style.css
═══════════════════════════════════════════════════════ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #f7f5f0;
  --surface: #faf9f6;
  --white: #ffffff;
  --border: rgba(60,55,45,0.10);
  --border-mid: rgba(60,55,45,0.18);
  --text-primary: #1a1916;
  --text-secondary: #6b6760;
  --text-hint: #a8a49e;
  --gold-light: #e8dfc8;
  --gold-mid: #c9b98a;
  --gold-accent: #a08840;
  --gold-deep: #6b5c2e;
  --apex-bg: #f5f0e6;
  --radius: 3px;
  --font-zh: 'Noto Sans SC', 'PingFang SC', 'HarmonyOS Sans', 'Microsoft YaHei', sans-serif;
  --font-en: 'EB Garamond', Georgia, serif;
  --transition: 0.22s cubic-bezier(0.4,0,0.2,1);
}

html { font-size: 15px; }

body {
  font-family: var(--font-zh);
  background: var(--bg);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ── Layout ─────────────────────────────────────────── */

.app {
  display: grid;
  grid-template-columns: 480px 800px;
  grid-template-rows: auto 1fr;
  min-height: 100vh;
  max-width: 1280px;
  margin: 0 auto;
  align-items: start;
}

/* ── Header ─────────────────────────────────────────── */

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  grid-column: 1 / -1;
  padding: 20px 48px 16px;
  display: flex;
  align-items: center;
  gap: 16px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.header-title { font-size: 17px; font-weight: 500; letter-spacing: 0.04em; }

.header-sub {
  font-family: var(--font-en);
  font-size: 14px; font-style: italic;
  color: var(--text-hint);
}

.header-actions { margin-left: auto; display: flex; gap: 8px; }

.btn-ghost {
  background: none;
  border: 1px solid var(--border-mid);
  border-radius: var(--radius);
  color: var(--text-secondary);
  font-family: var(--font-zh);
  font-size: 12px; padding: 5px 12px;
  cursor: pointer; transition: var(--transition);
  letter-spacing: 0.02em;
}
.btn-ghost:hover { background: var(--gold-light); border-color: var(--gold-mid); color: var(--gold-deep); }

/* ── Left Panel ─────────────────────────────────────── */

.left-panel {
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 32px 24px 32px 48px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: hidden;
}

.pyramid-label-top {
  font-family: var(--font-en);
  font-size: 11px; font-style: italic;
  color: var(--text-hint); letter-spacing: 0.08em;
  margin-bottom: 10px; text-align: center;
}

.pyramid-svg-wrap { width: 100%; max-width: 300px; user-select: none; }
.pyramid-svg-wrap svg { width: 100%; height: auto; display: block; overflow: visible; }

.py-layer { cursor: pointer; }
.py-layer .py-fill { transition: opacity 0.18s; opacity: 1; }
.py-layer:hover .py-fill { opacity: 0.82; }
.py-layer.active .py-fill { opacity: 0.70; }

.py-layer.generating .py-fill {
  animation: apex-pulse 1.8s ease-in-out infinite;
}
@keyframes apex-pulse {
  0%,100% { opacity: 1; }
  50% { opacity: 0.6; }
}

/* ── Progress Dots ──────────────────────────────────── */

.progress-area {
  margin-top: 18px;
  display: flex; gap: 8px;
  align-items: center; justify-content: center;
}

.progress-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--border-mid);
  transition: background 0.2s, transform 0.2s;
  cursor: pointer;
}
.progress-dot.has-data { background: var(--gold-mid); }
.progress-dot.is-current { background: var(--gold-deep); transform: scale(1.45); }
.progress-dot.apex-dot { width: 8px; height: 8px; }

/* ── Right Panel ─────────────────────────────────────── */

.right-panel { padding: 40px 48px 80px; }
.content-area {}

.section-num {
  font-family: var(--font-en); font-size: 11px; font-style: italic;
  color: var(--text-hint); letter-spacing: 0.08em; margin-bottom: 6px;
}

.section-title {
  font-size: 24px; font-weight: 300;
  letter-spacing: 0.06em; color: var(--text-primary);
  margin-bottom: 4px; line-height: 1.3;
}

.section-title-en {
  font-family: var(--font-en); font-size: 13px; font-style: italic;
  color: var(--text-hint); letter-spacing: 0.04em; margin-bottom: 20px;
}

.divider { height: 1px; background: var(--border); margin: 18px 0; }

.explanation {
  font-size: 14px; color: var(--text-secondary);
  line-height: 1.85; margin-bottom: 20px; letter-spacing: 0.02em;
}

.questions-title {
  font-size: 10px; font-weight: 500; letter-spacing: 0.12em;
  color: var(--text-hint); text-transform: uppercase; margin-bottom: 10px;
}

.questions-list { list-style: none; margin-bottom: 24px; }
.questions-list li {
  font-size: 13px; color: var(--text-secondary);
  padding: 4px 0 4px 14px; position: relative;
  letter-spacing: 0.01em; line-height: 1.7;
}
.questions-list li::before {
  content: ''; position: absolute; left: 0; top: 13px;
  width: 5px; height: 1px; background: var(--gold-mid);
}

/* ── Input Area ─────────────────────────────────────── */

.input-area { margin-top: 20px; }

.input-label {
  font-size: 10px; font-weight: 500; letter-spacing: 0.12em;
  color: var(--text-hint); text-transform: uppercase;
  margin-bottom: 10px; display: block;
}

.keyword-input-wrap { display: flex; gap: 8px; margin-bottom: 14px; }

.keyword-input {
  flex: 1;
  border: 1px solid var(--border-mid);
  border-radius: var(--radius);
  background: var(--white);
  padding: 8px 12px;
  font-family: var(--font-zh);
  font-size: 14px; color: var(--text-primary);
  outline: none; transition: var(--transition); letter-spacing: 0.02em;
}
.keyword-input:focus { border-color: var(--gold-mid); box-shadow: 0 0 0 2px rgba(160,136,64,0.10); }
.keyword-input::placeholder { color: var(--text-hint); font-size: 13px; }

.btn-add {
  background: var(--gold-light); border: 1px solid var(--gold-mid);
  border-radius: var(--radius); color: var(--gold-deep);
  font-family: var(--font-zh); font-size: 13px;
  padding: 8px 16px; cursor: pointer; transition: var(--transition);
  white-space: nowrap; letter-spacing: 0.04em;
}
.btn-add:hover { background: var(--gold-mid); color: var(--white); }

/* ── Tags ───────────────────────────────────────────── */

.tags-wrap { display: flex; flex-wrap: wrap; gap: 7px; min-height: 32px; }

.tag {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--white); border: 1px solid var(--border-mid);
  border-radius: 2px; padding: 4px 10px;
  font-size: 12px; color: var(--text-secondary);
  letter-spacing: 0.03em; transition: var(--transition);
  animation: tag-appear 0.2s ease-out;
}
@keyframes tag-appear {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}
.tag:hover { background: var(--gold-light); border-color: var(--gold-mid); color: var(--gold-deep); }

.tag-remove {
  cursor: pointer; opacity: 0.4; font-size: 10px; line-height: 1;
  border: none; background: none; color: inherit; padding: 0; transition: var(--transition);
}
.tag-remove:hover { opacity: 1; }

.empty-hint {
  font-size: 13px; color: var(--text-hint); font-style: italic;
  padding: 4px 0; font-family: var(--font-en);
}

/* ── Will Source ────────────────────────────────────── */

.apex-content { animation: fade-in 0.45s ease-out; }
@keyframes fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.apex-generating {
  display: flex; align-items: center; gap: 12px;
  padding: 20px 0; color: var(--text-secondary);
  font-size: 13px; letter-spacing: 0.04em;
}
.spinner {
  width: 16px; height: 16px;
  border: 1.5px solid var(--gold-light);
  border-top-color: var(--gold-accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite; flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }

.will-block {
  margin-bottom: 20px; padding: 18px 20px;
  background: var(--white);
  border: 1px solid var(--border);
  border-left: 2px solid var(--gold-mid);
  border-radius: var(--radius);
}

.will-block-label {
  font-size: 10px; font-weight: 500; letter-spacing: 0.12em;
  color: var(--text-hint); text-transform: uppercase; margin-bottom: 8px;
}

.will-core {
  font-size: 20px; font-weight: 300;
  letter-spacing: 0.06em; color: var(--text-primary); line-height: 1.5;
}

.will-sentence {
  font-family: var(--font-en); font-size: 14px; font-style: italic;
  color: var(--text-secondary); margin-top: 8px; line-height: 1.6;
}

.will-manifest {
  font-size: 13px; color: var(--text-secondary);
  line-height: 1.95; letter-spacing: 0.02em;
}

.will-keywords { display: flex; flex-wrap: wrap; gap: 6px; }

.will-keyword {
  background: var(--apex-bg); border: 1px solid var(--gold-light);
  border-radius: 2px; padding: 3px 10px;
  font-size: 12px; color: var(--gold-deep); letter-spacing: 0.04em;
}

.will-analysis {
  font-size: 13px; color: var(--text-secondary);
  line-height: 1.9; letter-spacing: 0.02em;
}

.btn-distill {
  background: var(--apex-bg); border: 1.5px solid var(--gold-mid);
  border-radius: var(--radius); color: var(--gold-deep);
  font-family: var(--font-zh); font-size: 14px; font-weight: 500;
  padding: 12px 24px; cursor: pointer; transition: var(--transition);
  letter-spacing: 0.08em; width: 100%; margin-top: 8px;
}
.btn-distill:hover { background: var(--gold-light); border-color: var(--gold-accent); }
.btn-distill:active { transform: scale(0.99); }

/* ── Save Indicator ─────────────────────────────────── */

.save-indicator {
  position: fixed; bottom: 20px; right: 24px;
  font-size: 11px; color: var(--text-hint);
  letter-spacing: 0.04em; pointer-events: none;
  opacity: 0; transition: opacity 0.3s;
}
.save-indicator.visible { opacity: 1; }

/* ── Modal ──────────────────────────────────────────── */

.modal-overlay {
  position: fixed; inset: 0; z-index: 1000;
  background: rgba(26,25,22,0.35);
  display: flex; align-items: center; justify-content: center;
  animation: overlay-in 0.18s ease-out;
}
@keyframes overlay-in { from { opacity:0; } to { opacity:1; } }

.modal-box {
  background: var(--surface);
  border: 1px solid var(--border-mid);
  border-top: 2px solid var(--gold-mid);
  border-radius: 4px;
  padding: 32px 36px 28px;
  width: 380px;
  max-width: calc(100vw - 48px);
  box-shadow: 0 8px 40px rgba(0,0,0,0.12);
  animation: modal-in 0.2s cubic-bezier(0.4,0,0.2,1);
}
@keyframes modal-in {
  from { opacity:0; transform: translateY(-10px) scale(0.98); }
  to   { opacity:1; transform: translateY(0) scale(1); }
}

.modal-icon { width: 36px; height: 36px; margin-bottom: 16px; }

.modal-title {
  font-size: 15px; font-weight: 500;
  letter-spacing: 0.04em; color: var(--text-primary);
  margin-bottom: 8px;
}

.modal-body {
  font-size: 13px; color: var(--text-secondary);
  line-height: 1.75; letter-spacing: 0.01em;
  margin-bottom: 24px;
}

.modal-actions { display: flex; justify-content: flex-end; gap: 8px; }

.modal-btn {
  border-radius: var(--radius);
  font-family: var(--font-zh);
  font-size: 13px; padding: 7px 20px;
  cursor: pointer; transition: var(--transition);
  letter-spacing: 0.04em; border: 1px solid var(--border-mid);
  background: var(--white); color: var(--text-secondary);
}
.modal-btn:hover { background: var(--gold-light); border-color: var(--gold-mid); color: var(--gold-deep); }
.modal-btn.primary {
  background: var(--gold-light); border-color: var(--gold-mid);
  color: var(--gold-deep); font-weight: 500;
}
.modal-btn.primary:hover { background: var(--gold-mid); color: var(--white); }

/* ── Responsive ─────────────────────────────────────── */

@media (max-width: 860px) {
  .app { grid-template-columns: 1fr; }
  .header { padding: 18px 20px 14px; }
  .left-panel {
    position: static; height: auto;
    padding: 28px 20px; border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .right-panel { padding: 24px 20px 60px; }
  .content-area { max-width: 100%; }
}