/* ==========================================================================
   QuantSenti — Main Stylesheet
   --------------------------------------------------------------------------
   Sections:
     1. Reset & base
     2. Layout primitives
     3. Header / nav / search
     4. Hero & home
     5. Cards & grids
     6. Entity detail
     7. Backtest controls
     8. Forms & buttons
     9. Footer
    10. Cookie banner & disclaimer
    11. Utilities & motion
    12. Responsive
   ========================================================================== */

/* 1 ─ Reset & base ────────────────────────────────────────── */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  background: var(--color-bg);
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: var(--lh-base);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background var(--dur-base) var(--ease-out),
              color    var(--dur-base) var(--ease-out);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 600;
  line-height: var(--lh-tight);
  color: var(--color-primary);
  margin: 0 0 var(--sp-3);
  letter-spacing: -0.01em;
}
h1 { font-size: var(--fs-3xl); letter-spacing: -0.025em; }
h2 { font-size: var(--fs-2xl); }
h3 { font-size: var(--fs-xl); }
h4 { font-size: var(--fs-lg); }

p { margin: 0 0 var(--sp-4); color: var(--color-text-2); }

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out);
}
a:hover { color: var(--color-accent); }

img, svg { max-width: 100%; display: block; }

button { font: inherit; cursor: pointer; }

::selection {
  background: var(--color-primary);
  color: var(--color-on-primary);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-primary);
  color: var(--color-on-primary);
  padding: var(--sp-3) var(--sp-4);
  border-radius: var(--radius-sm);
  z-index: 1000;
}
.skip-link:focus { left: var(--sp-4); top: var(--sp-4); }


/* 2 ─ Layout primitives ───────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}

.site-main {
  flex: 1;
  padding-top: var(--sp-7);
  padding-bottom: var(--sp-9);
}

.section { padding-block: var(--sp-8); }
.section + .section { padding-top: 0; }

.eyebrow {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--sp-3);
}


/* 3 ─ Header / nav / search ───────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  background: color-mix(in srgb, var(--color-bg) 78%, transparent);
  border-bottom: 1px solid var(--color-divider);
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--sp-5);
  height: var(--header-h);
}

.nav-brand {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: var(--fs-md);
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  letter-spacing: -0.01em;
}
.nav-brand .brand-logo     { display: block; }
.nav-brand .brand-logo-dark { display: none; }
[data-theme='dark'] .nav-brand .brand-logo      { display: none; }
[data-theme='dark'] .nav-brand .brand-logo-dark  { display: block; }

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  font-weight: 500;
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--radius-sm);
  transition: background var(--dur-fast) var(--ease-out);
}
.nav-links a:hover,
.nav-links a[aria-current='page'] {
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.nav-spacer { flex: 1; }

.nav-search {
  position: relative;
  width: clamp(180px, 24vw, 320px);
}
.nav-search input {
  width: 100%;
  height: 38px;
  padding: 0 var(--sp-4) 0 38px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  color: var(--color-text);
  font: inherit;
  font-size: var(--fs-sm);
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast);
}
.nav-search input::placeholder { color: var(--color-muted); }
.nav-search input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-ring);
}
.nav-search .search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--color-muted);
  pointer-events: none;
}

.search-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  max-height: 360px;
  overflow-y: auto;
  display: none;
  padding: var(--sp-2);
}
.search-dropdown[data-open='true'] { display: block; }
.search-dropdown .item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-3);
  border-radius: var(--radius-sm);
  font-size: var(--fs-sm);
  color: var(--color-text);
  cursor: pointer;
  transition: background var(--dur-fast);
}
.search-dropdown .item:hover,
.search-dropdown .item[aria-selected='true'] {
  background: var(--color-primary-soft);
}
.search-dropdown .item .symbol {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--color-muted);
}
.search-dropdown .empty,
.search-dropdown .hint {
  padding: var(--sp-4);
  color: var(--color-muted);
  font-size: var(--fs-sm);
  text-align: center;
}

.theme-toggle {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  color: var(--color-primary);
  transition: transform var(--dur-fast) var(--ease-out),
              background var(--dur-fast),
              border-color var(--dur-fast);
}
.theme-toggle:hover {
  transform: rotate(-12deg);
  border-color: var(--color-primary);
}
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }
[data-theme='dark'] .theme-toggle .icon-sun  { display: block; }
[data-theme='dark'] .theme-toggle .icon-moon { display: none; }

.nav-toggle {
  display: none;
  width: 38px;
  height: 38px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  align-items: center;
  justify-content: center;
}


/* 4 ─ Hero & home ─────────────────────────────────────────── */
.hero {
  position: relative;
  padding-top: var(--sp-8);
  padding-bottom: var(--sp-7);
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--hero-glow);
  pointer-events: none;
  z-index: 0;
}
.hero > .container { position: relative; z-index: 1; }

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-6);
  align-items: center;
}
@media (min-width: 980px) {
  .hero-grid { grid-template-columns: 0.95fr 1.1fr; gap: var(--sp-7); }
}

.hero-copy h1 { margin-bottom: var(--sp-4); }
.hero-copy .lede {
  font-size: var(--fs-md);
  color: var(--color-text-2);
  max-width: 56ch;
  margin-bottom: var(--sp-5);
}
.hero-actions { display: flex; gap: var(--sp-3); flex-wrap: wrap; }

.hero-chart-card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-5);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.hero-chart-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: var(--grid-bg);
  background-size: 24px 24px;
  opacity: 0.4;
  pointer-events: none;
}
.hero-chart-card > * { position: relative; }

.chart-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--sp-4);
  margin-bottom: var(--sp-4);
  flex-wrap: wrap;
}
.chart-title {
  font-family: var(--font-sans);
  font-size: var(--fs-md);
  font-weight: 600;
  color: var(--color-primary);
  margin: 0;
}
.chart-subtitle {
  font-size: var(--fs-xs);
  color: var(--color-muted);
  font-family: var(--font-mono);
}

.chart-host {
  width: 100%;
  height: 360px;
}
.chart-host.compact { height: 200px; }

.chart-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 360px;
  color: var(--color-muted);
  font-size: var(--fs-sm);
  flex-direction: column;
  gap: var(--sp-3);
}


/* 5 ─ Cards & grids ───────────────────────────────────────── */
.entity-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--sp-5);
}
/* ── Why QuantSenti — vertical feature stack ── */
.why-stack {
  display: flex;
  flex-direction: column;
  gap: var(--sp-8);
}

.why-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--sp-7);
  /* Glassmorphism: no hard border, soft gradient bg */
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--color-surface) 70%, transparent),
    color-mix(in srgb, var(--color-surface) 40%, transparent)
  );
  backdrop-filter: blur(24px) saturate(1.3);
  -webkit-backdrop-filter: blur(24px) saturate(1.3);
  border: none;
  border-radius: var(--radius-lg);
  padding: var(--sp-8);
  position: relative;
  overflow: visible;
  /* reveal animation */
  opacity: 0;
  transform: translateY(48px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out),
              box-shadow 0.4s var(--ease-out);
}
/* Soft edge glow instead of border */
.why-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--color-accent) 25%, transparent),
    color-mix(in srgb, var(--color-border) 30%, transparent),
    color-mix(in srgb, var(--color-accent) 15%, transparent)
  );
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0.5;
  transition: opacity 0.4s var(--ease-out);
}
.why-card:hover::before { opacity: 0.9; }
.why-card:hover {
  box-shadow: 0 20px 60px -15px color-mix(in srgb, var(--color-accent) 18%, transparent),
              0 8px 24px -8px rgba(0, 0, 0, 0.08);
}

.why-card.fade-in {
  opacity: 1;
  transform: translateY(0);
  animation: none;
}
.why-card--reverse { direction: rtl; }
.why-card--reverse > * { direction: ltr; }
.why-card--reverse.fade-in { transform: translateY(0); }

/* Stagger reveal */
.why-card:nth-child(2) { transition-delay: 0.12s; }
.why-card:nth-child(3) { transition-delay: 0.24s; }

/* Number label */
.why-card__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.05em;
  margin-bottom: var(--sp-3);
  padding: 3px 12px;
  border: 1px solid color-mix(in srgb, var(--color-accent) 50%, transparent);
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--color-accent) 8%, transparent);
}

.why-card__body h3 {
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 var(--sp-3);
}
.why-card__body p {
  font-size: var(--fs-base);
  color: var(--color-text-2);
  line-height: var(--lh-base);
  margin: 0;
  max-width: 440px;
}

/* Visual panel — parallax driven by JS via --scroll-y */
.why-card__visual {
  display: flex;
  align-items: center;
  justify-content: center;
  will-change: transform;
  transform: translateY(calc(var(--parallax-y, 0) * 1px));
  transition: transform 0.1s linear;
}
.why-card__visual svg {
  width: 100%;
  max-width: 320px;
  height: auto;
  filter: drop-shadow(0 4px 20px color-mix(in srgb, var(--color-accent) 20%, transparent));
}

/* ── Responsive ── */
@media (max-width: 760px) {
  .why-card {
    grid-template-columns: 1fr;
    padding: var(--sp-5);
    text-align: center;
  }
  .why-card--reverse { direction: ltr; }
  .why-card__visual { --parallax-y: 0 !important; }
  .why-card__visual svg { max-width: 200px; margin: 0 auto; }
  .why-card__body p { max-width: none; }
}

.entity-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--sp-5);
  position: relative;
  transition: transform var(--dur-base) var(--ease-out),
              border-color var(--dur-fast),
              box-shadow var(--dur-base) var(--ease-out);
  display: block;
  color: inherit;
  overflow: hidden;
}
.entity-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent, var(--color-primary-soft));
  opacity: 0;
  transition: opacity var(--dur-base) var(--ease-out);
  pointer-events: none;
}
.entity-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}
.entity-card:hover::before { opacity: 1; }

.entity-card .head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  margin-bottom: var(--sp-3);
}
.entity-card .name {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: var(--fs-md);
  color: var(--color-primary);
  margin: 0;
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
}
.entity-card__logo {
  width: 1.8em;
  height: 1.8em;
  object-fit: contain;
  flex-shrink: 0;
  display: inline-block;
  vertical-align: middle;
}
.entity-card .symbol {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--color-muted);
  letter-spacing: 0.04em;
  display: block;
  line-height: 1.4;
  min-height: 1.4em;
}
.entity-card .symbol--hidden {
  visibility: hidden;
}

.entity-card .index {
  display: flex;
  align-items: baseline;
  gap: var(--sp-2);
  font-family: var(--font-sans);
}
.entity-card .index.index--with-gauge {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}
.entity-card .index .value {
  font-size: 1.625rem;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}
.entity-card .index .out-of {
  font-size: var(--fs-xs);
  color: var(--color-muted);
}
.entity-card .index-text {
  display: flex;
  align-items: baseline;
  gap: var(--sp-1);
}

/* ── Gauge — card (mini, semicircle ≈ 5:3) ── */
.gauge-mini {
  width: 80px;
  flex-shrink: 0;
}

/* ── Gauge — detail page (larger semicircle) ── */
.gauge-detail {
  width: 130px;
  flex-shrink: 0;
}
.stat-card--gauge .stat-card__gauge-row {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
}
.stat-card--gauge .stat-card__text {
  flex: 1;
  min-width: 0;
}

.entity-card .meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--sp-4);
  font-size: var(--fs-xs);
  color: var(--color-muted);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 10px;
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  font-weight: 500;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
}
.badge.bullish { background: rgba(4, 120, 87, 0.10); color: var(--color-bullish); }
.badge.bearish { background: rgba(185, 28, 28, 0.10); color: var(--color-bearish); }
.badge.neutral { background: rgba(107, 114, 128, 0.12); color: var(--color-neutral); }
.badge.live    { background: var(--color-accent-soft); color: var(--color-accent); }
.badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}
.badge.live .dot {
  animation: pulse-dot 1.6s infinite var(--ease-in-out);
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.45; transform: scale(1.25); }
}

.section-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: var(--sp-4);
  margin-bottom: var(--sp-5);
  flex-wrap: wrap;
}
.section-header h2 { margin: 0; }
.section-header .lede {
  color: var(--color-muted);
  font-size: var(--fs-sm);
  margin: var(--sp-2) 0 0;
}

/* ── Tracked targets — "Show more" toggle ── */
.entity-card--extra.is-hidden { display: none; }
.targets-more {
  display: flex;
  justify-content: center;
  margin-top: var(--sp-6);
}
.targets-more .btn .arrow {
  display: inline-block;
  transition: transform var(--dur-base) var(--ease-out);
}
.targets-more .btn[aria-expanded="true"] .arrow { transform: rotate(180deg); }

/* ── Category index — large prominent cards ── */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--sp-6);
}
.category-card {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-7);
  min-height: 220px;
  position: relative;
  overflow: hidden;
  color: inherit;
  text-decoration: none;
  transition: transform var(--dur-base) var(--ease-out),
              border-color var(--dur-fast),
              box-shadow var(--dur-base) var(--ease-out);
}
.category-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent, var(--color-primary-soft));
  opacity: 0;
  transition: opacity var(--dur-base) var(--ease-out);
  pointer-events: none;
}
.category-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}
.category-card:hover::before { opacity: 1; }

.category-card__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--sp-3);
}
.category-card__name {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: var(--fs-2xl);
  color: var(--color-primary);
  margin: 0 0 var(--sp-2);
  letter-spacing: -0.01em;
}
.category-card__count {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--color-muted);
  letter-spacing: 0.04em;
}
.category-card__desc {
  font-size: var(--fs-sm);
  color: var(--color-text-2);
  line-height: var(--lh-base);
  margin: 0;
}
.category-card__cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: var(--sp-3);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--color-accent);
}
.category-card__cta .arrow {
  transition: transform var(--dur-base) var(--ease-out);
}
.category-card:hover .category-card__cta .arrow { transform: translateX(4px); }

@media (max-width: 600px) {
  .category-grid { grid-template-columns: 1fr; gap: var(--sp-4); }
  .category-card { padding: var(--sp-5); min-height: 0; }
  .category-card__name { font-size: var(--fs-xl); }
}


/* 6 ─ Entity detail ───────────────────────────────────────── */
.detail-header {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-4);
  margin-bottom: var(--sp-6);
}
@media (min-width: 760px) {
  .detail-header { grid-template-columns: 1fr auto; align-items: end; }
}

.detail-title {
  font-size: var(--fs-3xl);
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: var(--sp-3);
  flex-wrap: wrap;
}
.entity-detail__logo {
  width: 0.8em;
  height: 0.8em;
  object-fit: contain;
  flex-shrink: 0;
}
.detail-title .symbol {
  font-family: var(--font-mono);
  font-size: var(--fs-md);
  color: var(--color-muted);
}

.detail-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--sp-4);
  margin-bottom: var(--sp-6);
}
@media (max-width: 759px) {
  .detail-stats { grid-template-columns: repeat(2, 1fr); }
  .stat-card--gauge { grid-column: 1 / -1; }
}
.stat-card {
  padding: var(--sp-4) var(--sp-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.stat-card .label {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  margin-bottom: var(--sp-2);
  font-family: var(--font-sans);
  font-weight: 500;
}
.stat-card .value {
  font-family: var(--font-sans);
  font-size: var(--fs-2xl);
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

.detail-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-6);
}
@media (min-width: 980px) {
  .detail-grid { grid-template-columns: minmax(0, 2fr) minmax(280px, 1fr); }
}

.panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-5);
  box-shadow: var(--shadow-sm);
}
.panel h3 {
  font-size: var(--fs-md);
  margin-bottom: var(--sp-4);
}

.keyword-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
}
.keyword-cloud span {
  padding: 4px 10px;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  border-radius: var(--radius-pill);
  font-size: var(--fs-xs);
  font-family: var(--font-sans);
}


/* 7 ─ Backtest controls ───────────────────────────────────── */
.backtest-controls {
  display: flex;
  gap: var(--sp-4);
  flex-wrap: wrap;
  align-items: end;
  padding: var(--sp-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--sp-5);
}

.control {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.control label {
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-muted);
  font-weight: 500;
}
.control input,
.control select {
  height: 38px;
  padding: 0 var(--sp-3);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font: inherit;
  font-size: var(--fs-sm);
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast);
  color-scheme: inherit;
}
.control input:focus,
.control select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-ring);
}


/* 8 ─ Forms & buttons ─────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 10px 18px;
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  font-weight: 500;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-out),
              background var(--dur-fast),
              border-color var(--dur-fast),
              box-shadow var(--dur-fast);
  text-decoration: none;
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  background: var(--color-primary-strong);
  color: var(--color-on-primary);
  box-shadow: var(--shadow-md);
}

.btn-ghost {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-border-strong);
}
.btn-ghost:hover {
  background: var(--color-primary-soft);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-accent {
  background: var(--color-accent);
  color: var(--color-on-primary);
}
.btn-accent:hover { filter: brightness(1.05); }

.btn .arrow { transition: transform var(--dur-fast); }
.btn:hover .arrow { transform: translateX(3px); }

.form-stack { display: flex; flex-direction: column; gap: var(--sp-4); max-width: 540px; }
.form-stack input,
.form-stack textarea {
  padding: 12px 14px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font: inherit;
  font-size: var(--fs-sm);
  width: 100%;
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast);
}
.form-stack textarea { min-height: 140px; resize: vertical; }
.form-stack input:focus,
.form-stack textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-ring);
}


/* 9 ─ Footer ──────────────────────────────────────────────── */
.site-footer {
  background: var(--color-surface-2);
  border-top: 1px solid var(--color-divider);
  padding-block: var(--sp-7) var(--sp-5);
  margin-top: var(--sp-9);
}
.footer-main {
  display: flex;
  justify-content: space-between;
  gap: var(--sp-7);
}
.footer-brand {
  flex-shrink: 0;
}
.footer-cols {
  display: flex;
  gap: var(--sp-7);
}
@media (max-width: 880px) {
  .footer-main { flex-direction: column; }
  .footer-cols { flex-wrap: wrap; gap: var(--sp-5); }
  .footer-cols > div { min-width: 140px; }
}
@media (max-width: 540px) {
  .footer-cols { flex-direction: column; gap: var(--sp-4); }
}
.site-footer h4 {
  font-size: var(--fs-sm);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  font-weight: 500;
  margin-bottom: var(--sp-3);
}
.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}
.site-footer a {
  font-size: var(--fs-sm);
  color: var(--color-text-2);
}
.site-footer a:hover { color: var(--color-primary); }
.footer-bottom {
  margin-top: var(--sp-6);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--color-divider);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sp-3);
  font-size: var(--fs-xs);
  color: var(--color-muted);
}


/* 10 ─ Cookie banner & disclaimer ─────────────────────────── */
.cookie-banner {
  position: fixed;
  left: var(--sp-5);
  bottom: var(--sp-5);
  max-width: 380px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--sp-5);
  box-shadow: var(--shadow-lg);
  z-index: 60;
  transform: translateY(20px);
  opacity: 0;
  pointer-events: none;
  transition: transform var(--dur-slow) var(--ease-out),
              opacity   var(--dur-slow) var(--ease-out);
}
.cookie-banner[data-visible='true'] {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}
.cookie-banner h4 {
  margin: 0 0 var(--sp-2);
  font-size: var(--fs-sm);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-primary);
}
.cookie-banner p {
  font-size: var(--fs-xs);
  margin: 0 0 var(--sp-3);
  color: var(--color-text-2);
  line-height: 1.6;
}
.cookie-banner .actions {
  display: flex;
  gap: var(--sp-2);
  flex-wrap: wrap;
}
.cookie-banner .btn { padding: 8px 14px; font-size: var(--fs-xs); }

.disclaimer {
  margin-top: var(--sp-6);
  padding: var(--sp-4) var(--sp-5);
  border-left: 3px solid var(--color-accent);
  background: var(--color-accent-soft);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: var(--fs-xs);
  color: var(--color-text-2);
}


/* 11 ─ Utilities & motion ─────────────────────────────────── */
.text-muted   { color: var(--color-muted); }
.text-center  { text-align: center; }
.mono         { font-family: var(--font-mono); }
.hidden       { display: none !important; }

.divider {
  height: 1px;
  background: var(--color-divider);
  margin-block: var(--sp-6);
}

.fade-in {
  animation: fade-in var(--dur-slow) var(--ease-out) both;
}
@keyframes fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.breadcrumbs {
  font-size: var(--fs-xs);
  color: var(--color-muted);
  margin-bottom: var(--sp-4);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--sp-2);
}
.breadcrumbs a { color: var(--color-muted); }
.breadcrumbs a:hover { color: var(--color-primary); }
.breadcrumbs .sep { color: var(--color-border-strong); }

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-top: var(--sp-3);
}

.no-data {
  padding: var(--sp-7) var(--sp-5);
  text-align: center;
  color: var(--color-muted);
  font-size: var(--fs-sm);
  background: var(--color-surface-2);
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-md);
}


/* 12 ─ Hero background logo watermarks ─────────────────────── */
.hero { position: relative; overflow: hidden; }

.hero-bg-marks {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}
.hero-mark {
  position: absolute;
  opacity: 0.035;
  filter: blur(1px);
  animation-timing-function: var(--ease-in-out);
  animation-iteration-count: infinite;
  animation-direction: alternate;
  width: auto;
}
.hero-mark.mark-1 {
  width: 320px;
  top: -30px;
  right: -60px;
  animation: float-mark 18s infinite alternate;
}
.hero-mark.mark-2 {
  width: 200px;
  bottom: 10%;
  left: 4%;
  animation: float-mark 22s 4s infinite alternate-reverse;
}
.hero-mark.mark-3 {
  width: 260px;
  top: 40%;
  right: 30%;
  animation: float-mark 26s 8s infinite alternate;
}
[data-theme='dark'] .hero-mark { opacity: 0.05; }

@keyframes float-mark {
  0%   { transform: translateY(0) rotate(0deg) scale(1); }
  50%  { transform: translateY(-18px) rotate(3deg) scale(1.04); }
  100% { transform: translateY(6px) rotate(-2deg) scale(0.97); }
}


/* 13 ─ Time-scale selector (frosted glass) ───────────────── */
.scale-selector {
  display: inline-flex;
  background: rgba(255, 255, 255, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: var(--radius-pill);
  overflow: hidden;
  backdrop-filter: blur(12px) saturate(1.4);
  -webkit-backdrop-filter: blur(12px) saturate(1.4);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}
[data-theme='dark'] .scale-selector {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}
.scale-btn {
  padding: 5px 14px;
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  font-weight: 500;
  color: var(--color-muted);
  background: transparent;
  border: none;
  border-right: 1px solid rgba(0, 0, 0, 0.08);
  cursor: pointer;
  transition: background var(--dur-fast), color var(--dur-fast), box-shadow var(--dur-fast);
}
[data-theme='dark'] .scale-btn { border-right-color: rgba(255, 255, 255, 0.1); }
.scale-btn:last-child { border-right: none; }
.scale-btn:hover {
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.35);
}
[data-theme='dark'] .scale-btn:hover { background: rgba(255, 255, 255, 0.12); }
.scale-btn.active {
  color: var(--color-on-primary);
  background: var(--color-primary);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
}


/* 14 ─ Responsive ─────────────────────────────────────────── */
@media (max-width: 860px) {
  .nav-links { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav.menu-open .nav-links {
    display: flex;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-surface);
    padding: var(--sp-4) var(--container-pad);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    align-items: stretch;
  }
  .nav.menu-open .nav-links a { padding: var(--sp-3) var(--sp-4); }
  .nav-search { display: none; }
  .nav.menu-open .nav-search { display: block; width: 100%; }
}

@media (max-width: 540px) {
  .hero { padding-top: var(--sp-6); }
  .chart-host { height: 280px; }
  .cookie-banner { left: var(--sp-3); right: var(--sp-3); bottom: var(--sp-3); max-width: none; }
}