/* =====================================================
   TLL 22 FUND — Design Tokens & Styles
   Dark premium hedge fund aesthetic
   ===================================================== */

/* --- Fonts --- */
/* Switzer (body) + DM Serif Display (headings) — Authoritative finance */

/* --- Type Scale --- */
:root {
  --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);

  /* Spacing (4px system) */
  --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;
  --space-32: 8rem;

  /* Font families */
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'Switzer', 'Inter', sans-serif;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
}

/* === DARK MODE (default) === */
:root, [data-theme="dark"] {
  --color-bg:             #0B0C10;
  --color-surface:        #111318;
  --color-surface-2:      #181A20;
  --color-surface-offset: #1E2028;
  --color-border:         #2A2D38;
  --color-border-subtle:  #1F2230;
  --color-text:           #E8E6E1;
  --color-text-muted:     #9A9890;
  --color-text-faint:     #5C5A55;
  --color-primary:        #C9A961;
  --color-primary-hover:  #B8963F;
  --color-primary-dim:    rgba(201,169,97,0.12);
  --color-success:        #5EBD72;
  --color-success-dim:    rgba(94,189,114,0.12);
  --color-error:          #E05D5D;
  --color-error-dim:      rgba(224,93,93,0.12);

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.5);
}

/* === LIGHT MODE === */
[data-theme="light"] {
  --color-bg:             #F5F4F0;
  --color-surface:        #FFFFFF;
  --color-surface-2:      #F9F8F5;
  --color-surface-offset: #EFEEE9;
  --color-border:         #D4D1CA;
  --color-border-subtle:  #E5E3DD;
  --color-text:           #1A1814;
  --color-text-muted:     #6B6860;
  --color-text-faint:     #A5A39C;
  --color-primary:        #8B6F2E;
  --color-primary-hover:  #745A1E;
  --color-primary-dim:    rgba(139,111,46,0.1);
  --color-success:        #2E7D3E;
  --color-success-dim:    rgba(46,125,62,0.1);
  --color-error:          #B33B3B;
  --color-error-dim:      rgba(179,59,59,0.1);

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.12);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --color-bg:             #F5F4F0;
    --color-surface:        #FFFFFF;
    --color-surface-2:      #F9F8F5;
    --color-surface-offset: #EFEEE9;
    --color-border:         #D4D1CA;
    --color-border-subtle:  #E5E3DD;
    --color-text:           #1A1814;
    --color-text-muted:     #6B6860;
    --color-text-faint:     #A5A39C;
    --color-primary:        #8B6F2E;
    --color-primary-hover:  #745A1E;
    --color-primary-dim:    rgba(139,111,46,0.1);
    --color-success:        #2E7D3E;
    --color-success-dim:    rgba(46,125,62,0.1);
    --color-error:          #B33B3B;
    --color-error-dim:      rgba(179,59,59,0.1);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 12px 32px rgba(0,0,0,0.12);
  }
}

/* === GLOBAL === */
body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
}

/* === NAVIGATION === */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: oklch(from var(--color-bg) l c h / 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border-subtle);
  padding: var(--space-4) 0;
  transition: box-shadow 0.3s var(--ease-out);
}
.nav.scrolled {
  box-shadow: var(--shadow-sm);
}
.nav-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
}
.nav-logo svg {
  width: 36px;
  height: 36px;
}
.nav-logo-text {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  letter-spacing: 0.02em;
  color: var(--color-primary);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
}
.nav-links a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 500;
  transition: color var(--transition-interactive);
}
.nav-links a:hover {
  color: var(--color-primary);
}
.theme-toggle {
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  transition: color var(--transition-interactive), background var(--transition-interactive);
}
.theme-toggle:hover {
  color: var(--color-primary);
  background: var(--color-primary-dim);
}

/* Mobile nav */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  transition: transform 0.3s var(--ease-out), opacity 0.3s var(--ease-out);
}
@media (max-width: 768px) {
  .nav-hamburger { display: flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-6);
    gap: var(--space-6);
  }
  .nav-links.open { display: flex; }
}

/* === HERO SECTION === */
.hero {
  min-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: var(--space-16) var(--space-6);
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse 60% 50% at 50% 0%, var(--color-primary-dim) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 80% 80%, rgba(94,189,114,0.04) 0%, transparent 60%);
  pointer-events: none;
}
.hero-content {
  position: relative;
  text-align: center;
  max-width: 800px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-8);
}
.hero-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-success);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.hero h1 {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 400;
  color: var(--color-text);
  margin-bottom: var(--space-6);
  letter-spacing: -0.01em;
}
.hero h1 span {
  color: var(--color-primary);
}
.hero-subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 560px;
  margin: 0 auto var(--space-10);
  line-height: 1.7;
}
.hero-stats {
  display: flex;
  justify-content: center;
  gap: var(--space-12);
  flex-wrap: wrap;
}
.hero-stat {
  text-align: center;
}
.hero-stat-value {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-primary);
  font-variant-numeric: tabular-nums lining-nums;
}
.hero-stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: var(--space-1);
}

/* === SECTIONS === */
.section {
  padding: clamp(var(--space-16), 8vw, var(--space-32)) var(--space-6);
}
.section-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
}
.section-header {
  margin-bottom: var(--space-12);
}
.section-label {
  font-size: var(--text-xs);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
  margin-bottom: var(--space-3);
}
.section-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 400;
  margin-bottom: var(--space-4);
}
.section-desc {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 600px;
  line-height: 1.7;
}

/* Divider */
.section-divider {
  max-width: var(--content-wide);
  margin: 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border), transparent);
}

/* === KPI CARDS === */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-6);
}
.kpi-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-6) var(--space-5);
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}
.kpi-card:hover {
  border-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}
.kpi-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-3);
}
.kpi-value {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-variant-numeric: tabular-nums lining-nums;
  color: var(--color-text);
}
.kpi-delta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  margin-top: var(--space-2);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}
.kpi-delta.positive { color: var(--color-success); }
.kpi-delta.negative { color: var(--color-error); }

/* === STRATEGY / ABOUT SECTION === */
.strategy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-8);
}
.strategy-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
}
.strategy-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--color-primary-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  color: var(--color-primary);
}
.strategy-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  margin-bottom: var(--space-3);
  font-weight: 400;
}
.strategy-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* === CHART SECTION === */
.chart-container {
  background: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
}
.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
  gap: var(--space-4);
}
.chart-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 400;
}
.chart-legend {
  display: flex;
  gap: var(--space-6);
}
.chart-legend-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}
.chart-legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}
.chart-wrap {
  position: relative;
  height: 320px;
}
@media (max-width: 640px) {
  .chart-wrap { height: 240px; }
}
.charts-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}
@media (max-width: 768px) {
  .charts-row { grid-template-columns: 1fr; }
}

/* === QUARTERLY TABLE === */
.table-container {
  background: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.table-header {
  padding: var(--space-6) var(--space-6) var(--space-4);
}
.table-header h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 400;
}
.data-table {
  width: 100%;
}
.data-table thead {
  background: var(--color-surface-offset);
}
.data-table th {
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
  text-align: left;
  white-space: nowrap;
}
.data-table td {
  padding: var(--space-4) var(--space-6);
  font-size: var(--text-sm);
  font-variant-numeric: tabular-nums lining-nums;
  border-top: 1px solid var(--color-border-subtle);
}
.data-table tr:hover td {
  background: var(--color-primary-dim);
}
.data-table .text-right {
  text-align: right;
}
.data-table .text-success { color: var(--color-success); }
.data-table .text-error { color: var(--color-error); }
.data-table .text-muted { color: var(--color-text-muted); }
.data-table .font-medium { font-weight: 500; }

/* Table responsive */
.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* === FUND INFO / TERMS === */
.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
}
.info-item {
  display: flex;
  justify-content: space-between;
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--color-border-subtle);
}
.info-item:last-child { border-bottom: none; }
.info-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.info-value {
  font-size: var(--text-sm);
  font-weight: 500;
  text-align: right;
}

/* === DISCLAIMER === */
.disclaimer {
  margin-top: var(--space-12);
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
}
.disclaimer p {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  line-height: 1.7;
}

/* === FOOTER === */
.footer {
  padding: var(--space-12) var(--space-6) var(--space-8);
  border-top: 1px solid var(--color-border-subtle);
}
.footer-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}
.footer-text {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.footer-right {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* === SCROLL ANIMATIONS === */
.fade-in { opacity: 1; }

@supports (animation-timeline: scroll()) {
  .fade-in {
    opacity: 0;
    animation: revealFade linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 80%;
  }
}

@keyframes revealFade {
  to { opacity: 1; }
}

/* === UTILITIES === */
.gold { color: var(--color-primary); }
.muted { color: var(--color-text-muted); }