:root {
  --bg-main: #f4f7ff;
  --bg-overlay: #ffffff;
  --text-main: #15182b;
  --text-muted: #3a4061;
  --card-bg: rgba(255, 255, 255, 0.82);
  --card-border: rgba(20, 28, 58, 0.12);
  --neon-a: #00e5ff;
  --neon-b: #ff2e9a;
  --neon-c: #8cff00;
  --shadow: 0 12px 32px rgba(15, 23, 42, 0.12);
}

body.dark-mode {
  --bg-main: #090f1f;
  --bg-overlay: #121a33;
  --text-main: #f4f8ff;
  --text-muted: #b9c3e8;
  --card-bg: rgba(19, 27, 52, 0.72);
  --card-border: rgba(0, 229, 255, 0.28);
  --neon-a: #2cf6ff;
  --neon-b: #ff4fb4;
  --neon-c: #b5ff2e;
  --shadow: 0 16px 38px rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text-main);
  background:
    radial-gradient(circle at 10% 10%, color-mix(in srgb, var(--neon-a) 20%, transparent) 0%, transparent 35%),
    radial-gradient(circle at 85% 20%, color-mix(in srgb, var(--neon-b) 22%, transparent) 0%, transparent 30%),
    radial-gradient(circle at 40% 85%, color-mix(in srgb, var(--neon-c) 16%, transparent) 0%, transparent 35%),
    linear-gradient(150deg, var(--bg-main), var(--bg-overlay));
  transition: background 0.35s ease, color 0.35s ease;
}

.mode-toggle {
  color: var(--text-main);
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--neon-a) 42%, white),
    color-mix(in srgb, var(--neon-b) 34%, white)
  );
  border: 1px solid color-mix(in srgb, var(--text-main) 22%, transparent);
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, filter 0.25s ease, border-color 0.25s ease;
}

body.dark-mode .mode-toggle {
  background: linear-gradient(135deg, var(--neon-a), var(--neon-b));
  border: 0;
}

.mode-toggle:hover {
  transform: translateY(-2px);
  filter: brightness(1.08);
  border-color: color-mix(in srgb, var(--neon-a) 38%, var(--text-main));
}

.language-wrap {
  display: inline-flex;
  align-items: center;
  gap: 0;
  padding: 0;
}

.globe-button {
  border: 0;
  background: transparent;
  padding: 0;
  cursor: pointer;
  transition: transform 0.24s ease;
}

.language-wrap.open .globe-button {
  transform: translateX(-10px);
}

.globe-icon {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #2a94de;
}

body.dark-mode .globe-icon {
  color: color-mix(in srgb, var(--text-main) 82%, transparent);
}

.globe-icon svg {
  width: 32px;
  height: 32px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.language-menu {
  display: flex;
  align-items: center;
  gap: 9px;
  max-width: 0;
  overflow: hidden;
  margin-left: 0;
  opacity: 0;
  transform: translateX(-8px);
  pointer-events: none;
  white-space: nowrap;
  transition: max-width 0.26s ease, margin-left 0.26s ease, opacity 0.22s ease, transform 0.24s ease;
}

.language-wrap.open .language-menu {
  max-width: 260px;
  margin-left: 2px;
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}

.lang-item {
  background: transparent;
  border: 0;
  padding: 0;
  color: color-mix(in srgb, var(--text-main) 80%, transparent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: color 0.2s ease, transform 0.2s ease;
}

.lang-item:hover {
  color: var(--neon-a);
  transform: translateY(-1px);
}

.lang-item.active {
  color: color-mix(in srgb, var(--text-main) 96%, transparent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.chart-type-controls {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.chart-type-btn {
  width: 46px;
  height: 46px;
  border: 1px solid color-mix(in srgb, var(--text-main) 14%, transparent);
  border-radius: 16px;
  background:
    radial-gradient(circle at 28% 25%, rgba(255, 255, 255, 0.32) 0%, rgba(255, 255, 255, 0.08) 38%, rgba(255, 255, 255, 0.02) 100%),
    color-mix(in srgb, var(--card-bg) 78%, transparent);
  box-shadow: 0 8px 24px rgba(7, 14, 25, 0.16), inset 0 1px 0 rgba(255, 255, 255, 0.24);
  line-height: 1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease, border-color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease, backdrop-filter 0.25s ease;
  backdrop-filter: blur(10px);
}

.chart-type-btn:hover {
  transform: translateY(-2px);
  border-color: var(--neon-a);
}

.chart-type-btn.active {
  border-color: color-mix(in srgb, var(--text-main) 26%, transparent);
  background:
    radial-gradient(circle at 28% 25%, rgba(255, 255, 255, 0.45) 0%, rgba(255, 255, 255, 0.12) 36%, rgba(255, 255, 255, 0.04) 100%),
    color-mix(in srgb, var(--card-bg) 90%, transparent);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--text-main) 16%, transparent), 0 10px 26px rgba(7, 14, 25, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.35);
}

.icon-svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: color-mix(in srgb, var(--text-main) 74%, transparent);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.chart-type-btn.active .icon-svg {
  stroke: color-mix(in srgb, var(--text-main) 90%, transparent);
}

.index-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
  transition: transform 0.22s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.index-card:hover {
  transform: translateY(-4px) scale(1.01);
  border-color: var(--neon-a);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--neon-a) 40%, transparent), var(--shadow);
}

.index-card.active {
  border-color: var(--neon-b);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--neon-b) 45%, transparent), var(--shadow);
}

.card-tag {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.02em;
  color: #051019;
  background: linear-gradient(120deg, var(--neon-a), var(--neon-c));
  font-weight: 700;
}

.chart-panel {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}

.inline-chart-section {
  margin-top: 12px;
}

.footer-meta {
  background: color-mix(in srgb, var(--card-bg) 94%, transparent);
  border: 1px solid color-mix(in srgb, var(--card-border) 90%, transparent);
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
  padding: 12px 14px;
}

.pst-clock-wrap {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 32px;
}

.pst-clock {
  letter-spacing: 0.03em;
  color: color-mix(in srgb, var(--text-main) 92%, transparent);
}

.quick-nav {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 0;
}

.quick-nav a {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: color-mix(in srgb, var(--text-main) 85%, transparent);
  text-decoration: none;
  padding: 0 12px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--card-border) 96%, transparent);
  background: color-mix(in srgb, var(--card-bg) 94%, transparent);
}

.quick-nav a:hover {
  border-color: var(--neon-a);
}

.footer-note {
  margin-top: 6px;
  padding: 0 4px 8px;
}

.footer-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

@media (min-width: 768px) {
  .footer-actions {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

@media (max-width: 767px) {
  .quick-nav {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px;
    margin-top: 8px;
  }

  .quick-nav a {
    width: 100%;
    height: 38px;
    font-size: 12px;
    padding: 0;
    border-radius: 10px;
  }

  .pst-clock-wrap {
    width: 100%;
    margin-top: 8px;
    flex-direction: column;
    gap: 2px;
    align-items: center;
    justify-content: center;
  }

  #pstClockLabel,
  #pstClock {
    width: 100%;
    display: block;
    text-align: center;
  }
}

.quality-panel,
.policy-panel {
  background: color-mix(in srgb, var(--card-bg) 94%, transparent);
  border: 1px solid color-mix(in srgb, var(--card-border) 90%, transparent);
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}

.quality-grid {
  display: grid;
  grid-template-columns: repeat(1, minmax(0, 1fr));
  gap: 10px;
}

.quality-item {
  border: 1px solid color-mix(in srgb, var(--card-border) 80%, transparent);
  border-radius: 12px;
  padding: 10px 12px;
  background: color-mix(in srgb, var(--card-bg) 90%, transparent);
}

@media (min-width: 768px) {
  .quality-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}