/* ===================================================
   КАРТА УРОВНЕЙ СЛОВА — Стили
   Палитра: глубокий космос / сакральное золото
   =================================================== */

/* ── Шрифты / Design Tokens ──────────────────────────── */
:root,
[data-theme="dark"] {
  --font-display: "Cormorant Garamond", "Georgia", serif;
  --font-display-sc: "Cormorant SC", "Georgia", serif;
  --font-body: "Inter", "Helvetica Neue", sans-serif;

  /* Type scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 5rem);
  --text-hero: clamp(3rem, 0.5rem + 7vw, 8rem);

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Dark palette — космос */
  --color-bg: #0c0b0e;
  --color-surface: #111018;
  --color-surface-2: #161520;
  --color-surface-offset: #1a1925;
  --color-surface-dynamic: #201f2e;
  --color-border: #2a2938;
  --color-divider: #232232;
  --color-text: #e2e0d8;
  --color-text-muted: #8a8899;
  --color-text-faint: #4e4d5e;
  --color-text-inverse: #0c0b0e;
  --color-accent: #c9a84c;       /* священное золото */
  --color-accent-hover: #e2c070;
  --color-accent-dim: #3d3018;
  --color-accent-glow: rgba(201,168,76,0.12);
  --color-cosmos: #1e1d35;

  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;
  --transition: 220ms cubic-bezier(0.16, 1, 0.3, 1);

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.4);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.5);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.6);
  --shadow-glow: 0 0 30px var(--color-accent-glow);

  --content-default: 960px;
  --content-wide: 1200px;
}

[data-theme="light"] {
  --color-bg: #f9f7f2;
  --color-surface: #f4f1eb;
  --color-surface-2: #ede9e0;
  --color-surface-offset: #e8e4da;
  --color-surface-dynamic: #dbd5c9;
  --color-border: #c9c3b5;
  --color-divider: #d8d2c6;
  --color-text: #1c1a14;
  --color-text-muted: #6a6558;
  --color-text-faint: #a8a299;
  --color-text-inverse: #f9f7f2;
  --color-accent: #8a6820;
  --color-accent-hover: #a07a28;
  --color-accent-dim: #f0e8d4;
  --color-accent-glow: rgba(138,104,32,0.1);
  --color-cosmos: #eae4d6;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.1);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
  --shadow-glow: 0 0 30px var(--color-accent-glow);
}

/* ── Reset ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-16);
}
body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.65;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; height: auto; }
button { cursor: pointer; background: none; border: none; font: inherit; color: inherit; }
h1,h2,h3,h4 { text-wrap: balance; line-height: 1.15; }
p, li { text-wrap: pretty; }
::selection { background: var(--color-accent-glow); }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; border-radius: var(--radius-sm); }

/* ── Noise texture overlay ────────────────────────────── */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
  opacity: 0.3;
}

/* ── Header ─────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--color-bg) 80%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-divider);
}
.header-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: var(--space-3) var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.logo-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}
.logo-svg {
  width: 28px;
  height: 28px;
  color: var(--color-accent);
}
.logo-text {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 300;
  color: var(--color-accent);
  letter-spacing: 0.05em;
}
.nav-pills {
  display: flex;
  gap: var(--space-1);
  flex: 1;
  flex-wrap: wrap;
  justify-content: center;
}
.nav-pill {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  transition: all var(--transition);
  white-space: nowrap;
}
.nav-pill:hover {
  color: var(--color-text);
  border-color: var(--color-border);
  background: var(--color-surface);
}
.nav-pill.active {
  color: var(--color-text-inverse);
  background: var(--color-accent);
  border-color: var(--color-accent);
}
.nav-glyph {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  opacity: 0.8;
}
.nav-label-short {
  font-family: var(--font-display-sc);
  font-size: 0.8em;
  letter-spacing: 0.04em;
}
.theme-toggle {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  transition: all var(--transition);
}
.theme-toggle:hover { color: var(--color-text); background: var(--color-surface); }

/* ── Hero ─────────────────────────────────────────────── */
.hero {
  max-width: var(--content-default);
  margin: 0 auto;
  padding: clamp(var(--space-12), 8vw, var(--space-24)) var(--space-6) var(--space-16);
  text-align: center;
}
.hero-kicker {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}
.hero-title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 300;
  color: var(--color-text);
  margin-bottom: var(--space-6);
  letter-spacing: -0.01em;
}
.hero-title em {
  font-style: italic;
  color: var(--color-accent);
}
.hero-sub {
  max-width: 60ch;
  margin: 0 auto var(--space-10);
  color: var(--color-text-muted);
  font-size: var(--text-base);
  line-height: 1.7;
}
.hero-scroll-hint {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.06em;
  animation: pulse-fade 2.5s ease-in-out infinite;
}
@keyframes pulse-fade {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

/* ── Map Section ──────────────────────────────────────── */
.map-section {
  padding: 0 var(--space-6) var(--space-16);
}
.map-container {
  max-width: var(--content-default);
  margin: 0 auto;
  position: relative;
}
.spine {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  transform: translateX(-50%);
  width: 1px;
  pointer-events: none;
  z-index: 0;
}
.spine-line {
  width: 1px;
  height: 100%;
  background: linear-gradient(to bottom, transparent, var(--color-border) 10%, var(--color-border) 90%, transparent);
}

/* ── Nodes ────────────────────────────────────────────── */
.nodes-list {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}
.map-node {
  display: flex;
  align-items: center;
  cursor: pointer;
  outline: none;
}
.map-node.node-left { flex-direction: row; }
.map-node.node-right { flex-direction: row-reverse; }

/* Connector dot */
.node-connector {
  flex-shrink: 0;
  width: 50%;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  position: relative;
}
.node-right .node-connector { justify-content: flex-start; }
.node-connector::before {
  content: "";
  position: absolute;
  right: -6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-surface-dynamic);
  border: 2px solid var(--node-color, var(--color-border));
  transition: all var(--transition);
  z-index: 2;
}
.node-right .node-connector::before { right: auto; left: -6px; }
.map-node:hover .node-connector::before,
.map-node.active .node-connector::before {
  background: var(--node-color);
  box-shadow: 0 0 20px color-mix(in srgb, var(--node-color) 60%, transparent);
  transform: scale(1.3);
}
.node-connector::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--color-border);
  margin-right: var(--space-2);
  transition: background var(--transition);
}
.node-right .node-connector::after { margin-right: 0; margin-left: var(--space-2); }
.map-node:hover .node-connector::after,
.map-node.active .node-connector::after {
  background: color-mix(in srgb, var(--node-color) 60%, var(--color-border));
}

/* Node card */
.node-card {
  width: calc(50% - var(--space-6));
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-5) var(--space-6);
  transition: all var(--transition);
  border-top: 2px solid var(--node-color, var(--color-border));
}
.map-node:hover .node-card {
  background: var(--color-surface-2);
  border-color: color-mix(in srgb, var(--node-color) 50%, var(--color-border));
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.map-node.active .node-card {
  background: var(--color-surface-offset);
  border-color: var(--node-color);
  box-shadow: 0 0 0 1px var(--node-color), var(--shadow-lg);
  transform: translateY(-2px);
}
.node-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-3);
}
.node-num {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-faint);
  font-family: var(--font-body);
  letter-spacing: 0.1em;
}
.node-glyph-big {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--node-color);
  opacity: 0.7;
  line-height: 1;
}
.node-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 300;
  color: var(--color-text);
  letter-spacing: -0.01em;
  margin-bottom: var(--space-1);
}
.node-sublabel {
  font-size: var(--text-sm);
  color: var(--node-color);
  font-weight: 500;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-2);
}
.node-tagline {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-style: italic;
  font-family: var(--font-display);
  margin-bottom: var(--space-3);
}
.node-short {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  max-width: 100%;
}
.node-footer {
  margin-top: var(--space-4);
  border-top: 1px solid var(--color-divider);
  padding-top: var(--space-3);
}
.node-cta {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.05em;
  transition: color var(--transition);
}
.map-node:hover .node-cta { color: var(--node-color); }

/* ── Detail Section ───────────────────────────────────── */
.detail-section {
  max-width: var(--content-default);
  margin: 0 auto var(--space-16);
  padding: 0 var(--space-6);
  display: none;
  opacity: 0;
  transform: translateY(var(--space-8));
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.detail-section.visible {
  display: block;
  animation: fadeUp 0.4s ease forwards;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(var(--space-8)); }
  to   { opacity: 1; transform: translateY(0); }
}

.detail-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--node-color, var(--color-accent));
  border-radius: var(--radius-xl);
  padding: var(--space-10) var(--space-10);
  position: relative;
  box-shadow: var(--shadow-lg), 0 0 60px color-mix(in srgb, var(--node-color, var(--color-accent)) 8%, transparent);
}
.detail-close {
  position: absolute;
  top: var(--space-5);
  right: var(--space-5);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  transition: all var(--transition);
}
.detail-close:hover { color: var(--color-text); background: var(--color-surface-offset); }

.detail-title-block {
  text-align: center;
  margin-bottom: var(--space-10);
}
.detail-num {
  display: block;
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--node-color, var(--color-accent));
  margin-bottom: var(--space-4);
}
.detail-greek {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 300;
  color: var(--color-text);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-2);
}
.detail-russian {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-style: italic;
  color: var(--node-color, var(--color-accent));
  margin-bottom: var(--space-3);
}
.detail-tagline-large {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* 2-column grid */
.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}
@media (max-width: 700px) {
  .detail-grid { grid-template-columns: 1fr; }
}
.detail-col-head {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-divider);
}
.detail-text p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.75;
  margin-bottom: var(--space-4);
  max-width: 100%;
}
.detail-text p:last-child { margin-bottom: 0; }

/* Synthesis */
.detail-synthesis {
  background: color-mix(in srgb, var(--node-color, var(--color-accent)) 8%, var(--color-surface-offset));
  border: 1px solid color-mix(in srgb, var(--node-color, var(--color-accent)) 30%, var(--color-border));
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-8);
  margin-bottom: var(--space-8);
}
.synthesis-label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--node-color, var(--color-accent));
  margin-bottom: var(--space-3);
}
.synthesis-text {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 300;
  font-style: italic;
  color: var(--color-text);
  line-height: 1.65;
  max-width: 100%;
}

/* Quotes */
.detail-quotes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}
@media (max-width: 600px) {
  .detail-quotes { grid-template-columns: 1fr; }
}
.detail-quote {
  border-left: 2px solid var(--node-color, var(--color-accent));
  padding-left: var(--space-4);
}
.detail-quote p {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--text-sm);
  color: var(--color-text);
  line-height: 1.6;
  margin-bottom: var(--space-2);
  max-width: 100%;
}
.detail-quote footer {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.04em;
}

/* Nav */
.detail-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-divider);
}
.detail-nav-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  transition: all var(--transition);
  font-family: var(--font-display);
  font-style: italic;
}
.detail-nav-btn:hover:not(:disabled) {
  color: var(--color-text);
  border-color: var(--color-text-muted);
  background: var(--color-surface-2);
}
.detail-nav-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}
.detail-nav-dots {
  display: flex;
  gap: var(--space-2);
  align-items: center;
}
.nav-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-border);
  transition: all var(--transition);
}
.nav-dot.current {
  width: 10px;
  height: 10px;
  box-shadow: 0 0 8px currentColor;
}

/* ── Footer ───────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--color-divider);
  text-align: center;
  padding: var(--space-8) var(--space-6);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.06em;
}

/* ── Mobile ────────────────────────────────────────────── */
@media (max-width: 768px) {
  .nav-pills { display: none; }
  .spine { display: none; }
  .nodes-list { gap: var(--space-4); }
  .map-node.node-left,
  .map-node.node-right { flex-direction: column; align-items: stretch; }
  .node-connector { width: 100%; justify-content: center; height: var(--space-4); }
  .node-connector::before { top: 50%; transform: translateY(-50%); right: auto; left: auto; position: relative; }
  .node-connector::after { display: none; }
  .node-card { width: 100%; }
  .detail-panel { padding: var(--space-6) var(--space-5); }
  .detail-nav { flex-wrap: wrap; justify-content: center; gap: var(--space-3); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}