/* ════════════════════════════════════════════════════════════
   SALT ROUTE CAPITAL — Design System
   Two Sigma-inspired palette · Multi-page
   ════════════════════════════════════════════════════════════ */

/* ─── VARIABLES ─────────────────────────────────────────────── */
:root {
  /* Dark palette (hero sections, nav, footer) */
  --navy:       #06091A;
  --navy-2:     #0B1024;
  --navy-3:     #131B34;
  --navy-4:     #1C2640;
  --navy-border:#222C50;

  /* Accent — vivid indigo-purple, Two Sigma family */
  --accent:     #6B3FF5;
  --accent-2:   #8B63F8;
  --accent-3:   #5030D8;
  --accent-bg:  rgba(107, 63, 245, 0.1);
  --accent-glow:rgba(107, 63, 245, 0.2);

  /* Light palette (content sections) */
  --white:    #FFFFFF;
  --gray-50:  #F5F6FB;
  --gray-100: #ECEEF8;
  --gray-200: #DADEF0;
  --gray-300: #B8BEDC;
  --gray-500: #717895;
  --gray-700: #383E5A;
  --gray-900: #0D1228;

  /* Text on light bg */
  --t:        #0D1228;
  --t-2:      #3D4568;
  --t-3:      #717895;

  /* Text on dark bg */
  --dt:       #FFFFFF;
  --dt-2:     #A8AECE;
  --dt-3:     #5C6485;

  /* Semantic */
  --green:  #1DAA6A;
  --amber:  #D4921E;

  /* Typography */
  --h:  'Plus Jakarta Sans', system-ui, sans-serif;
  --b:  'Inter', system-ui, -apple-system, sans-serif;
  --m:  'Space Mono', 'Courier New', monospace;

  /* Spacing / layout */
  --nav-h:  68px;
  --wrap:   min(1200px, 100% - clamp(2rem, 6vw, 8rem));
  --wrap-n: min(960px,  100% - clamp(2rem, 6vw, 8rem));
  --pad:    clamp(64px, 9vw, 112px);
  --ease:   cubic-bezier(0.16, 1, 0.3, 1);
  --r:      4px;
  --r-md:   8px;
  --r-lg:   12px;
  --shadow: 0 1px 4px rgba(13,18,40,0.06), 0 6px 24px rgba(13,18,40,0.08);
  --shadow-lg: 0 4px 12px rgba(13,18,40,0.1), 0 20px 60px rgba(13,18,40,0.14);
}

/* ─── RESET ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: var(--b);
  color: var(--t);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; }

/* ─── TYPOGRAPHY BASE ────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: var(--h);
  font-weight: 700;
  line-height: 1.15;
  color: inherit;
}

/* ─── SITE HEADER ────────────────────────────────────────────── */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 200;
  height: var(--nav-h);
  background: var(--navy);
  border-bottom: 1px solid var(--navy-border);
  transition: background 0.3s, border-color 0.3s;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  width: var(--wrap);
  margin: 0 auto;
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  flex-shrink: 0;
}

.logo-svg {
  flex-shrink: 0;
  overflow: visible;
}

.logo-name {
  font-family: var(--h);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--dt);
}


/* Nav links */
.site-nav {
  display: flex;
  align-items: center;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(1.2rem, 2.5vw, 2.2rem);
}

.nav-link {
  font-family: var(--b);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--dt-2);
  transition: color 0.2s;
  white-space: nowrap;
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--dt);
}

.nav-link.is-active {
  position: relative;
}

.nav-link.is-active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}

.nav-link--cta {
  background: var(--accent);
  color: var(--dt) !important;
  padding: 0.45rem 1.1rem;
  border-radius: var(--r);
  font-weight: 600;
  transition: background 0.2s, transform 0.15s;
}

.nav-link--cta:hover {
  background: var(--accent-2);
  transform: translateY(-1px);
}

/* Mobile toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--dt-2);
  transition: all 0.3s var(--ease);
}

.nav-toggle.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); background: var(--dt); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); background: var(--dt); }

/* ─── HERO (HOMEPAGE) ────────────────────────────────────────── */
.home-hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  padding-top: var(--nav-h);
  background: var(--navy);
  overflow: hidden;
}

/* Subtle grid background */
.home-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.022) 1px, transparent 1px);
  background-size: 56px 56px;
  z-index: 0;
}

/* Accent glows */
.home-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 55% at 80% 10%, rgba(107,63,245,0.22) 0%, transparent 60%),
    radial-gradient(ellipse 35% 40% at 10% 90%, rgba(107,63,245,0.08) 0%, transparent 60%);
  z-index: 0;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  width: var(--wrap);
  margin: 0 auto;
  padding: clamp(3rem, 8vw, 7rem) 0 clamp(4rem, 8vw, 7rem);
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--m);
  font-size: 0.65rem;
  letter-spacing: 0.22em;
  color: var(--accent-2);
  margin-bottom: 1.75rem;
}

.hero-label::before {
  content: '●——●';
  color: var(--accent-2);
  letter-spacing: -0.02em;
}

.hero-h1 {
  font-size: clamp(2.4rem, 5.5vw, 5rem);
  font-weight: 800;
  color: var(--dt);
  line-height: 1.1;
  letter-spacing: -0.02em;
  max-width: 820px;
  margin-bottom: 1.5rem;
}

.hero-h1 em {
  font-style: normal;
  color: var(--accent-2);
}

.hero-sub {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  font-weight: 400;
  color: var(--dt-2);
  max-width: 540px;
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 3.5rem;
}

.hero-meta {
  font-family: var(--m);
  font-size: 0.62rem;
  letter-spacing: 0.15em;
  color: var(--dt-3);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.hero-meta-sep { color: var(--navy-4); }

/* Hero bottom chart strip */
.hero-chart-strip {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 120px;
  overflow: hidden;
  border-top: 1px solid var(--navy-border);
}

.hero-chart-strip svg {
  width: 100%;
  height: 100%;
}

.chart-path {
  stroke-dasharray: 3000;
  stroke-dashoffset: 3000;
  animation: draw-path 2.5s ease forwards;
}

.chart-path--2 { animation-delay: 0.4s; }
.chart-path--3 { animation-delay: 0.8s; animation-duration: 3s; }

@keyframes draw-path {
  to { stroke-dashoffset: 0; }
}

/* ─── PAGE HERO (INNER PAGES) ────────────────────────────────── */
.page-hero {
  background: var(--navy);
  padding: calc(var(--nav-h) + clamp(3rem, 7vw, 6rem)) 0 clamp(3rem, 6vw, 5rem);
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.018) 1px, transparent 1px);
  background-size: 56px 56px;
}

.page-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 70% at 90% 0%, rgba(107,63,245,0.18) 0%, transparent 55%);
  pointer-events: none;
}

.page-hero__inner {
  position: relative;
  z-index: 1;
  width: var(--wrap);
  margin: 0 auto;
}

.page-hero__label {
  font-family: var(--m);
  font-size: 0.62rem;
  letter-spacing: 0.25em;
  color: var(--accent-2);
  margin-bottom: 1.25rem;
}

.page-hero__title {
  font-size: clamp(2rem, 4.5vw, 3.8rem);
  font-weight: 800;
  color: var(--dt);
  letter-spacing: -0.02em;
  max-width: 700px;
  margin-bottom: 1rem;
}

.page-hero__title em {
  font-style: normal;
  color: var(--accent-2);
}

.page-hero__sub {
  font-size: clamp(0.95rem, 1.5vw, 1.1rem);
  color: var(--dt-2);
  max-width: 560px;
  line-height: 1.7;
}

/* ─── BUTTONS ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--b);
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--r);
  padding: 0.7rem 1.6rem;
  transition: background 0.2s, border-color 0.2s, color 0.2s, transform 0.15s, box-shadow 0.2s;
  white-space: nowrap;
  border: 2px solid transparent;
  cursor: pointer;
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: none; }

.btn--primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.btn--primary:hover {
  background: var(--accent-2);
  border-color: var(--accent-2);
  box-shadow: 0 4px 20px rgba(107,63,245,0.35);
}

.btn--ghost {
  background: transparent;
  color: var(--dt);
  border-color: var(--navy-border);
}

.btn--ghost:hover {
  border-color: var(--dt-2);
}

.btn--ghost-light {
  background: transparent;
  color: var(--t);
  border-color: var(--gray-200);
}

.btn--ghost-light:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn--sm {
  font-size: 0.8rem;
  padding: 0.5rem 1.1rem;
}

.btn-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--b);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  transition: gap 0.2s;
}

.btn-arrow:hover { gap: 0.7rem; }
.btn-arrow::after { content: '→'; }

/* ─── SECTION LAYOUTS ────────────────────────────────────────── */
.sec {
  padding: var(--pad) 0;
}

.sec--white   { background: var(--white); }
.sec--gray    { background: var(--gray-50); }
.sec--dark    { background: var(--navy-2); color: var(--dt); }
.sec--navy    { background: var(--navy); color: var(--dt); }

.sec__inner {
  width: var(--wrap);
  margin: 0 auto;
}

.sec__inner--narrow {
  width: var(--wrap-n);
  margin: 0 auto;
}

.sec__label {
  font-family: var(--m);
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  color: var(--accent);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.sec--dark .sec__label,
.sec--navy .sec__label {
  color: var(--accent-2);
}

.sec__title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--gray-900);
  margin-bottom: 1rem;
}

.sec--dark .sec__title,
.sec--navy .sec__title { color: var(--dt); }

.sec__sub {
  font-size: clamp(0.95rem, 1.5vw, 1.1rem);
  color: var(--t-2);
  max-width: 580px;
  line-height: 1.7;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.sec--dark .sec__sub,
.sec--navy .sec__sub { color: var(--dt-2); }

.sec__header {
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

/* Two-column section header layout */
.sec__header--split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

/* ─── STATS BAND ─────────────────────────────────────────────── */
.stats-band {
  background: var(--navy-3);
  border-top: 1px solid var(--navy-border);
  border-bottom: 1px solid var(--navy-border);
  padding: clamp(2.5rem, 4vw, 3.5rem) 0;
}

.stats-band__inner {
  width: var(--wrap);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--navy-border);
}

.stat-cell {
  background: var(--navy-3);
  padding: clamp(1.5rem, 2.5vw, 2.5rem) clamp(1.5rem, 2.5vw, 2rem);
}

.stat-cell__val {
  font-family: var(--h);
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 800;
  color: var(--accent-2);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-cell__label {
  font-family: var(--m);
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  color: var(--dt-3);
  line-height: 1.5;
}

/* ─── FEATURE CARDS (Homepage → Inner pages) ─────────────────── */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.feature-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--r-md);
  padding: 2rem 2rem 1.75rem;
  transition: box-shadow 0.3s, border-color 0.3s, transform 0.3s var(--ease);
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  box-shadow: var(--shadow);
  border-color: var(--accent);
  transform: translateY(-3px);
}

.feature-card__icon {
  width: 44px;
  height: 44px;
  background: var(--accent-bg);
  border-radius: var(--r);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-family: var(--m);
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.05em;
}

.feature-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 0.75rem;
}

.feature-card__body {
  font-size: 0.875rem;
  color: var(--t-2);
  line-height: 1.7;
  flex: 1;
  margin-bottom: 1.5rem;
}

.feature-card__link {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  transition: gap 0.2s;
}

.feature-card__link:hover { gap: 0.6rem; }
.feature-card__link::after { content: '→'; }

/* ─── INSTRUMENT CARDS (Markets) ─────────────────────────────── */
.instruments-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.instrument-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--r-md);
  padding: 2rem;
  transition: box-shadow 0.3s, border-color 0.3s;
}

.instrument-card:hover {
  box-shadow: var(--shadow);
  border-color: var(--gray-300);
}

.instrument-card__tag {
  font-family: var(--m);
  font-size: 0.58rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.instrument-card__name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 0.5rem;
}

.instrument-card__exch {
  font-family: var(--m);
  font-size: 0.65rem;
  color: var(--t-3);
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--gray-100);
}

.instrument-card__desc {
  font-size: 0.875rem;
  color: var(--t-2);
  line-height: 1.7;
}

/* ─── APPROACH PAGE ──────────────────────────────────────────── */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--gray-200);
  border: 1px solid var(--gray-200);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.pillar {
  background: var(--white);
  padding: clamp(2rem, 3.5vw, 3rem);
  transition: background 0.25s;
}

.pillar:hover { background: var(--gray-50); }

.pillar__num {
  font-family: var(--m);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.pillar__title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 0.85rem;
}

.pillar__body {
  font-size: 0.875rem;
  color: var(--t-2);
  line-height: 1.75;
}

/* Signal/exit ladder visual */
.ladder {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--navy-border);
  border-radius: var(--r-md);
  overflow: hidden;
}

.ladder__step {
  background: var(--navy-3);
  padding: 2rem;
  text-align: center;
}

.ladder__level {
  font-family: var(--m);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  color: var(--dt-3);
  margin-bottom: 0.5rem;
}

.ladder__val {
  font-family: var(--h);
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 800;
  color: var(--accent-2);
  margin-bottom: 0.4rem;
}

.ladder__label {
  font-size: 0.8rem;
  color: var(--dt-2);
}

/* ─── MARKETS PAGE ───────────────────────────────────────────── */
.markets-table {
  border: 1px solid var(--gray-200);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.markets-table__head {
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr 1fr;
  background: var(--gray-50);
  padding: 0.85rem 1.5rem;
  font-family: var(--m);
  font-size: 0.58rem;
  letter-spacing: 0.18em;
  color: var(--t-3);
  border-bottom: 1px solid var(--gray-200);
}

.markets-table__row {
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr 1fr;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--gray-100);
  align-items: center;
  transition: background 0.2s;
}

.markets-table__row:last-child { border-bottom: none; }
.markets-table__row:hover { background: var(--gray-50); }

.markets-table__name { font-size: 0.95rem; font-weight: 600; color: var(--gray-900); }
.markets-table__exch { font-family: var(--m); font-size: 0.65rem; letter-spacing: 0.1em; color: var(--t-3); }
.markets-table__profile { font-size: 0.82rem; color: var(--t-2); }

.markets-table__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--m);
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  padding: 0.3rem 0.7rem;
  border-radius: 99px;
  background: var(--accent-bg);
  color: var(--accent);
}

/* ─── TECHNOLOGY PAGE ────────────────────────────────────────── */
.tech-stack {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--gray-200);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.tech-item {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 0;
  border-bottom: 1px solid var(--gray-100);
  transition: background 0.2s;
}

.tech-item:last-child { border-bottom: none; }
.tech-item:hover { background: var(--gray-50); }

.tech-item__label {
  padding: 1.75rem 1.5rem;
  background: var(--gray-50);
  border-right: 1px solid var(--gray-200);
  font-family: var(--m);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  color: var(--accent);
  display: flex;
  align-items: flex-start;
}

.tech-item:hover .tech-item__label { background: var(--gray-100); }

.tech-item__body {
  padding: 1.75rem 2rem;
  font-size: 0.875rem;
  color: var(--t-2);
  line-height: 1.75;
}

/* Metrics grid */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: 1px solid var(--gray-200);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.metric {
  padding: clamp(1.5rem, 2.5vw, 2.5rem) 1.5rem;
  border-right: 1px solid var(--gray-200);
  text-align: center;
}

.metric:last-child { border-right: none; }

.metric__val {
  font-family: var(--h);
  font-size: clamp(1.6rem, 2.8vw, 2.5rem);
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 0.6rem;
}

.metric__label {
  font-family: var(--m);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  color: var(--t-3);
  line-height: 1.6;
}

/* ─── PHILOSOPHY PAGE ────────────────────────────────────────── */
.blockquote-section {
  border-left: 3px solid var(--accent);
  padding-left: clamp(2rem, 4vw, 3.5rem);
  margin-bottom: clamp(3.5rem, 6vw, 5.5rem);
}

.blockquote-section p {
  font-size: clamp(1.3rem, 2.5vw, 2rem);
  font-family: var(--h);
  font-weight: 300;
  color: var(--gray-900);
  line-height: 1.5;
  margin-bottom: 0.7em;
}

.blockquote-section p:last-child { margin-bottom: 0; }

.blockquote-section em {
  font-style: normal;
  color: var(--accent);
  font-weight: 600;
}

.principles-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border: 1px solid var(--gray-200);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--gray-200);
}

.principle {
  background: var(--white);
  padding: clamp(2rem, 3vw, 2.5rem);
  display: flex;
  gap: 1.25rem;
  border-bottom: 1px solid var(--gray-200);
  transition: background 0.2s;
}

.principle:last-child,
.principle:nth-last-child(2):nth-child(odd) { border-bottom: none; }
.principle:hover { background: var(--gray-50); }

.principle__num {
  font-family: var(--m);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  color: var(--accent);
  flex-shrink: 0;
  padding-top: 0.3rem;
}

.principle h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 0.6rem;
}

.principle p {
  font-size: 0.85rem;
  color: var(--t-2);
  line-height: 1.72;
}

/* ─── DESERT ZONES ───────────────────────────────────────────── */
.zones-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.zone-card {
  background: var(--navy-3);
  border: 1px solid var(--navy-border);
  border-radius: var(--r-md);
  padding: 1.75rem;
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s, background 0.3s;
}

.zone-card:hover { background: var(--navy-4); }

.zone-card::before {
  content: attr(data-zone);
  position: absolute;
  bottom: -0.15em;
  right: 0.5rem;
  font-family: var(--h);
  font-size: 6rem;
  font-weight: 800;
  color: rgba(255,255,255,0.03);
  line-height: 1;
  letter-spacing: -0.04em;
  pointer-events: none;
}

.zone-card__roman {
  font-family: var(--m);
  font-size: 0.58rem;
  letter-spacing: 0.2em;
  color: var(--dt-3);
  margin-bottom: 0.75rem;
}

.zone-card__name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--dt);
  margin-bottom: 0.5rem;
}

.zone-card__desc {
  font-size: 0.8rem;
  color: var(--dt-2);
  line-height: 1.65;
  margin-bottom: 1rem;
}

.zone-card__badge {
  font-family: var(--m);
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  padding: 0.28rem 0.65rem;
  border-radius: 99px;
  display: inline-block;
}

.badge--optimal  { background: rgba(29,170,106,0.12); color: #2DB87A; }
.badge--standard { background: rgba(107,63,245,0.12); color: var(--accent-2); }
.badge--caution  { background: rgba(212,146,30,0.12); color: #D4921E; }
.badge--alert    { background: rgba(220,120,40,0.12); color: #DC7828; }
.badge--danger   { background: rgba(200,60,50,0.12);  color: #C83C32; }
.badge--halt     { background: rgba(220,40,40,0.18);  color: #E04040; }

.zone-card--halt { border-color: rgba(224,64,64,0.2); }
.zone-card--halt:hover { background: rgba(224,64,64,0.06); }

/* ─── CONTACT PAGE ───────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.contact-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--r-lg);
  padding: 2.5rem;
}

.contact-card__label {
  font-family: var(--m);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.contact-card__title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 0.75rem;
}

.contact-card__body {
  font-size: 0.88rem;
  color: var(--t-2);
  line-height: 1.72;
  margin-bottom: 1.5rem;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-info-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.contact-info-item__label {
  font-family: var(--m);
  font-size: 0.58rem;
  letter-spacing: 0.15em;
  color: var(--t-3);
  min-width: 70px;
  padding-top: 0.1rem;
}

.contact-info-item__val {
  font-size: 0.875rem;
  color: var(--t);
  line-height: 1.5;
}

/* ─── FOOTER ─────────────────────────────────────────────────── */
.site-footer {
  background: var(--navy);
  border-top: 1px solid var(--navy-border);
  padding: clamp(3.5rem, 6vw, 5.5rem) 0 0;
}

.footer-inner {
  width: var(--wrap);
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: clamp(2rem, 4vw, 4rem);
  padding-bottom: clamp(3rem, 5vw, 4.5rem);
  border-bottom: 1px solid var(--navy-border);
  margin-bottom: 1.75rem;
}

.footer-brand__mark {
  font-family: var(--m);
  font-size: 0.72rem;
  color: var(--accent-2);
  margin-bottom: 0.4rem;
}

.footer-brand__name {
  font-family: var(--h);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--dt);
  letter-spacing: 0.06em;
  margin-bottom: 1rem;
}

.footer-brand__desc {
  font-size: 0.82rem;
  color: var(--dt-3);
  line-height: 1.7;
}

.footer-col__title {
  font-family: var(--m);
  font-size: 0.58rem;
  letter-spacing: 0.2em;
  color: var(--dt-3);
  margin-bottom: 1.25rem;
}

.footer-col a {
  display: block;
  font-size: 0.82rem;
  color: var(--dt-2);
  margin-bottom: 0.7rem;
  transition: color 0.2s;
}

.footer-col a:hover { color: var(--dt); }

.footer-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 0;
  font-family: var(--m);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  color: var(--dt-3);
}

.footer-bar__mark { color: var(--navy-4); letter-spacing: -0.02em; }

/* ─── REVEAL ANIMATIONS ──────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal.is-on {
  opacity: 1;
  transform: none;
}

/* ─── RESPONSIVE ─────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2.5rem; }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .metric:nth-child(2) { border-right: none; }
  .metric:nth-child(1),
  .metric:nth-child(2) { border-bottom: 1px solid var(--gray-200); }
}

@media (max-width: 900px) {
  .nav-links, .site-nav { display: none; }
  .nav-toggle { display: flex; }

  .nav-links.is-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    inset: var(--nav-h) 0 auto 0;
    background: var(--navy-2);
    border-bottom: 1px solid var(--navy-border);
    padding: 1.5rem var(--wrap);
    gap: 0;
    z-index: 300;
  }

  .nav-links.is-open .nav-link {
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--navy-border);
    font-size: 0.92rem;
  }

  .nav-links.is-open .nav-link--cta {
    margin-top: 1rem;
    text-align: center;
    justify-content: center;
    border-radius: var(--r);
    border-bottom: none;
  }

  .site-nav.is-open { display: flex; }

  .feature-grid { grid-template-columns: 1fr 1fr; }
  .pillars-grid { grid-template-columns: 1fr; }
  .zones-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .stats-band__inner { grid-template-columns: repeat(2, 1fr); }
  .sec__header--split { grid-template-columns: 1fr; gap: 1.5rem; }
  .instruments-grid { grid-template-columns: 1fr; }
  .ladder { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .feature-grid { grid-template-columns: 1fr; }
  .zones-grid { grid-template-columns: 1fr; }
  .principles-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; align-items: center; }
  .footer-grid { grid-template-columns: 1fr; }
  .metrics-grid { grid-template-columns: 1fr 1fr; }
  .tech-item { grid-template-columns: 1fr; }
  .tech-item__label { border-right: none; border-bottom: 1px solid var(--gray-200); }
  .markets-table__head,
  .markets-table__row { grid-template-columns: 1fr 1fr; }
  .markets-table__profile { display: none; }
  .markets-table__badge { display: none; }
}

/* ════════════════════════════════════════════════════════════
   HERO REDESIGN — Centered · Canvas · Stats Strip
   ════════════════════════════════════════════════════════════ */

/* ─── HERO CANVAS ────────────────────────────────────────────── */
.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  display: block;
}

/* ─── HERO CENTER (Two Sigma-inspired centered layout) ───────── */
.hero-center {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  padding: clamp(3rem, 8vw, 6rem) clamp(1.5rem, 6vw, 4rem) clamp(2rem, 4vw, 3rem);
}

/* Center-mode overrides for existing hero typography */
.hero-center .hero-label {
  justify-content: center;
  margin-bottom: 1.5rem;
}

.hero-center .hero-h1 {
  font-size: clamp(3rem, 7.5vw, 6.5rem);
  max-width: none;
  margin-bottom: 1.5rem;
}

.hero-center .hero-sub {
  max-width: 580px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 2.5rem;
  font-size: clamp(1rem, 1.8vw, 1.15rem);
}

.hero-center .hero-actions {
  justify-content: center;
  margin-bottom: 0;
}

/* ─── HOSTILE TERRAIN TAG ────────────────────────────────────── */
.terrain-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.6rem 1.1rem 0.6rem 0.85rem;
  background: rgba(107, 63, 245, 0.08);
  border: 1px solid rgba(107, 63, 245, 0.28);
  border-radius: 3px;
  font-family: var(--m);
  font-size: 0.62rem;
  letter-spacing: 0.26em;
  color: var(--accent-2);
  margin-bottom: 1.6rem;
  animation: tag-pulse 3.5s ease-in-out infinite;
}

@keyframes tag-pulse {
  0%, 100% { box-shadow: none; border-color: rgba(107,63,245,0.28); }
  50%       { box-shadow: 0 0 16px rgba(107,63,245,0.14); border-color: rgba(107,63,245,0.45); }
}

/* ─── HERO STATS STRIP ───────────────────────────────────────── */
.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0;
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
  padding-top: clamp(1.5rem, 3vw, 2rem);
  border-top: 1px solid rgba(34, 44, 80, 0.8);
  width: 100%;
}

.hero-stat {
  padding: 0 clamp(1.2rem, 3vw, 2.5rem);
  text-align: center;
}

.hero-stat__val {
  font-family: var(--h);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 800;
  color: var(--accent-2);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 0.4rem;
}

.hero-stat__label {
  font-family: var(--m);
  font-size: 0.52rem;
  letter-spacing: 0.16em;
  color: var(--dt-3);
  line-height: 1.5;
}

.hero-stat__div {
  width: 1px;
  height: 2.5rem;
  background: var(--navy-border);
  flex-shrink: 0;
}

/* ─── HERO CHART STRIP ───────────────────────────────────────── */
.hero-chart-strip {
  position: relative;
  z-index: 2;
  width: 100%;
  height: 130px;
  overflow: hidden;
  border-top: 1px solid var(--navy-border);
  flex-shrink: 0;
}

.hero-chart-strip svg {
  width: 100%;
  height: 100%;
}

/* ─── HERO RESPONSIVE ────────────────────────────────────────── */
@media (max-width: 640px) {
  .terrain-tag { font-size: 0.55rem; letter-spacing: 0.18em; }
  .hero-stat__div { display: none; }
  .hero-stats { gap: 1.5rem; }
  .hero-stat { padding: 0; }
  .hero-center .hero-actions { flex-direction: column; align-items: center; }
}

/* ─── CONTACT FORM ───────────────────────────────────────────── */
.contact-info-item__val--link {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}
.contact-info-item__val--link:hover { color: var(--accent-2); }

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  margin-top: 0.5rem;
}

.contact-form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.1rem;
}

.contact-form__field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.contact-form__label {
  font-family: var(--m);
  font-size: 0.52rem;
  letter-spacing: 0.2em;
  color: var(--t-3);
}

.contact-form__input {
  font-family: var(--b);
  font-size: 0.88rem;
  color: var(--t);
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--r);
  padding: 0.65rem 0.9rem;
  width: 100%;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
}

.contact-form__input::placeholder { color: var(--gray-300); }

.contact-form__input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(107,63,245,0.1);
}

.contact-form__select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23717895' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.9rem center;
  padding-right: 2.5rem;
}

.contact-form__textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.6;
}

.contact-form__submit {
  align-self: flex-start;
  margin-top: 0.25rem;
}

@media (max-width: 640px) {
  .contact-form__row { grid-template-columns: 1fr; }
  .contact-form__submit { width: 100%; justify-content: center; }
}

.contact-form__status {
  font-family: var(--b);
  font-size: 0.85rem;
  margin-top: 0.75rem;
  padding: 0.65rem 1rem;
  border-radius: var(--r);
  display: none;
}

.contact-form__status.is-success {
  display: block;
  background: rgba(29, 170, 106, 0.1);
  color: var(--green);
  border: 1px solid rgba(29, 170, 106, 0.25);
}

.contact-form__status.is-error {
  display: block;
  background: rgba(212, 57, 30, 0.08);
  color: #C0392B;
  border: 1px solid rgba(212, 57, 30, 0.2);
}

.contact-form__submit[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

/* ─── FOOTER BRAND MARK OVERRIDE ─────────────────────────────── */
.footer-brand__mark {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

/* ─── LIGHT MODE (L1) ────────────────────────────────────────── */
[data-theme="light"] {
  --navy:        #FFFFFF;
  --navy-2:      #F8F9FC;
  --navy-3:      #F0F2FA;
  --navy-4:      #E8ECFA;
  --navy-border: #DDE0F0;
  --dt:          #0D1228;
  --dt-2:        #3D4568;
  --dt-3:        #717895;
  --shadow:      0 1px 4px rgba(13,18,40,0.08), 0 6px 24px rgba(13,18,40,0.1);
  --shadow-lg:   0 4px 12px rgba(13,18,40,0.12), 0 20px 60px rgba(13,18,40,0.16);
}

/* Light mode: grid overlay on hero sections becomes dark lines */
[data-theme="light"] .page-hero::before,
[data-theme="light"] .home-hero::before {
  background-image:
    linear-gradient(rgba(13,18,40,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(13,18,40,0.04) 1px, transparent 1px);
}

/* Light mode: transition for smooth switching */
.site-header,
.site-footer,
.page-hero,
.home-hero,
.stats-band,
.sec--navy,
.sec--dark {
  transition: background 0.3s, border-color 0.3s, color 0.3s;
}

/* ─── THEME TOGGLE BUTTON ────────────────────────────────────── */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  background: var(--navy-3);
  border: 1px solid var(--navy-border);
  border-radius: var(--r);
  color: var(--dt-2);
  transition: background 0.2s, color 0.2s, border-color 0.2s;
  margin-right: 0.5rem;
  flex-shrink: 0;
}

.theme-toggle:hover {
  background: var(--navy-4);
  color: var(--dt);
}

/* Show moon in dark, sun in light */
.theme-toggle__icon { display: none; }
.theme-toggle__icon--moon { display: block; }
[data-theme="light"] .theme-toggle__icon--moon { display: none; }
[data-theme="light"] .theme-toggle__icon--sun  { display: block; }

/* ─── COOKIE CONSENT BANNER ──────────────────────────────────── */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  background: var(--navy-3);
  border-top: 1px solid var(--navy-border);
  padding: 1rem 0;
  transform: translateY(100%);
  transition: transform 0.4s var(--ease);
}

.cookie-banner.is-visible {
  transform: translateY(0);
}

.cookie-banner__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  width: var(--wrap);
  margin: 0 auto;
}

.cookie-banner__text {
  font-family: var(--b);
  font-size: 0.82rem;
  color: var(--dt-2);
  line-height: 1.5;
}

.cookie-banner__text a {
  color: var(--accent-2);
  text-decoration: underline;
}

.cookie-banner__actions {
  display: flex;
  gap: 0.75rem;
  flex-shrink: 0;
}

.cookie-banner__btn {
  font-family: var(--b);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.45rem 1.2rem;
  border-radius: var(--r);
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
  white-space: nowrap;
}

.cookie-banner__btn--accept {
  background: var(--accent);
  color: #FFFFFF;
}

.cookie-banner__btn--accept:hover {
  background: var(--accent-2);
  transform: translateY(-1px);
}

.cookie-banner__btn--decline {
  background: transparent;
  color: var(--dt-3);
  border: 1px solid var(--navy-border);
}

.cookie-banner__btn--decline:hover {
  background: var(--navy-4);
  color: var(--dt-2);
}

@media (max-width: 640px) {
  .cookie-banner__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  .cookie-banner__actions {
    width: 100%;
  }
  .cookie-banner__btn {
    flex: 1;
    text-align: center;
  }
}