/* ============================================
   Arrowhead Advisory Group - Global Styles
   Navy + White Premium / Venture Studio
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ---- Reset ---- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* ---- Custom Properties ---- */
:root {
  --color-navy: #0F1D2F;
  --color-navy-mid: #162540;
  --color-navy-light: #1E3050;

  --color-bg: #FFFFFF;
  --color-bg-elevated: #F6F7FA;
  --color-bg-card: #FFFFFF;
  --color-bg-card-hover: #F8F9FC;
  --color-surface: #F0F2F6;

  --color-text: #0F1D2F;
  --color-text-secondary: #4A5568;
  --color-text-muted: #8A94A6;

  --color-gold: #C9A84C;
  --color-gold-dim: rgba(201, 168, 76, 0.12);
  --color-gold-hover: #B89530;

  --color-accent: #7C3AED;
  --color-accent-dim: rgba(124, 58, 237, 0.08);

  --color-border: rgba(15, 29, 47, 0.08);
  --color-border-hover: rgba(15, 29, 47, 0.16);

  --color-success: #34D399;
  --color-danger: #F87171;

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --size-xs: 0.75rem;     /* 12px */
  --size-sm: 0.875rem;    /* 14px */
  --size-base: 1rem;      /* 16px */
  --size-md: 1.125rem;    /* 18px */
  --size-lg: 1.375rem;    /* 22px */
  --size-xl: 1.75rem;     /* 28px */
  --size-2xl: 2.5rem;     /* 40px */
  --size-3xl: 3.25rem;    /* 52px */

  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1.25rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 5rem;
  --space-3xl: 7rem;

  --max-width: 1140px;
  --radius: 8px;
  --radius-lg: 12px;
}

/* ---- Base ---- */
html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  font-size: var(--size-base);
  line-height: 1.7;
  color: var(--color-text-secondary);
  background: var(--color-bg);
}

::selection {
  background: var(--color-gold);
  color: var(--color-bg);
}

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

a {
  color: var(--color-gold);
  text-decoration: none;
  transition: color 0.2s;
}
a:hover { color: var(--color-gold-hover); }

/* ---- Typography ---- */
h1, h2, h3, h4 {
  font-family: var(--font);
  color: var(--color-text);
  line-height: 1.15;
  letter-spacing: -0.03em;
  font-weight: 800;
}

h1 { font-size: var(--size-3xl); }
h2 { font-size: var(--size-2xl); margin-bottom: var(--space-md); }
h3 { font-size: var(--size-lg); font-weight: 700; margin-bottom: var(--space-sm); letter-spacing: -0.02em; }

p { margin-bottom: var(--space-md); }
p:last-child { margin-bottom: 0; }

/* ---- Layout ---- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

section {
  padding: var(--space-2xl) 0;
}

.section-alt {
  background: var(--color-bg-elevated);
}

/* Cards on light background */
.card {
  border: 1px solid var(--color-border);
}

.portfolio-card {
  border: 1px solid var(--color-border);
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

/* ---- Label ---- */
.label {
  display: inline-block;
  font-size: var(--size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-gold);
  margin-bottom: var(--space-sm);
}

.label--tag {
  background: var(--color-gold-dim);
  padding: 4px 12px;
  border-radius: 100px;
}

/* ---- Navigation ---- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 29, 47, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  color: var(--color-text);
}

.nav__logo-text {
  font-weight: 800;
  font-size: var(--size-sm);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #FFFFFF;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  list-style: none;
}

.nav__links a {
  font-size: var(--size-xs);
  font-weight: 500;
  color: rgba(255,255,255,0.55);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  transition: color 0.2s;
}

.nav__links a:hover,
.nav__links a.active {
  color: #FFFFFF;
}

.nav__cta {
  font-size: var(--size-xs) !important;
  font-weight: 700 !important;
  color: var(--color-gold) !important;
  border: 1px solid var(--color-gold);
  padding: 6px 16px;
  border-radius: 4px;
  transition: all 0.2s !important;
}

.nav__cta:hover {
  background: var(--color-gold) !important;
  color: var(--color-bg) !important;
}

.nav__mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
}

.nav__mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  margin: 5px 0;
  transition: all 0.3s;
}

/* ---- Navy Sections ---- */
.section-navy {
  background: var(--color-navy);
  color: #FFFFFF;
}

.section-navy h1,
.section-navy h2,
.section-navy h3,
.section-navy .hero__stat-value,
.section-navy .stat-row__value {
  color: #FFFFFF;
}

.section-navy p,
.section-navy .hero__sub {
  color: rgba(255,255,255,0.65);
}

.section-navy .hero__stat-label,
.section-navy .stat-row__label {
  color: rgba(255,255,255,0.4);
}

.section-navy .label {
  color: var(--color-gold);
}

.section-navy .card,
.section-navy .portfolio-card {
  background: rgba(255,255,255,0.05);
  border-color: rgba(255,255,255,0.08);
}

.section-navy .card:hover,
.section-navy .portfolio-card:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(201,168,76,0.3);
}

.section-navy .card h3,
.section-navy .portfolio-card h3 {
  color: #FFFFFF;
}

.section-navy .card p,
.section-navy .portfolio-card p {
  color: rgba(255,255,255,0.6);
}

.section-navy .btn--outline {
  color: #FFFFFF;
  border-color: rgba(255,255,255,0.2);
}

.section-navy .btn--outline:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

.section-navy .flywheel__step {
  background: rgba(255,255,255,0.04);
}

.section-navy .flywheel__step h3 { color: #FFFFFF; }
.section-navy .flywheel__step p { color: rgba(255,255,255,0.5); }
.section-navy .flywheel__num { color: rgba(201,168,76,0.2); }

.section-navy .cta-banner {
  background: rgba(255,255,255,0.05);
  border-color: rgba(255,255,255,0.1);
}

.section-navy .cta-banner h3 { color: #FFFFFF; }
.section-navy .cta-banner p { color: rgba(255,255,255,0.6); }

/* ---- Hero ---- */
.hero {
  padding: var(--space-3xl) 0 var(--space-2xl);
  position: relative;
  overflow: hidden;
  background: var(--color-navy);
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(201,168,76,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.hero__content {
  max-width: 700px;
  position: relative;
  z-index: 1;
}

.hero h1 {
  margin-bottom: var(--space-md);
  color: #FFFFFF;
}

.hero .label { color: var(--color-gold); }

.hero__sub {
  font-size: var(--size-md);
  color: rgba(255,255,255,0.65);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
  max-width: 560px;
}

.hero__stats {
  display: flex;
  gap: var(--space-xl);
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255,255,255,0.1);
}

.hero__stat-value {
  font-size: var(--size-2xl);
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: -0.03em;
  line-height: 1;
}

.hero__stat-label {
  font-size: var(--size-xs);
  color: rgba(255,255,255,0.4);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 4px;
}

/* ---- Buttons ---- */
.btn {
  display: inline-block;
  font-family: var(--font);
  font-size: var(--size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 14px 28px;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  border-radius: 4px;
}

.btn--gold {
  background: var(--color-gold);
  color: var(--color-bg);
}
.btn--gold:hover {
  background: var(--color-gold-hover);
  color: var(--color-bg);
}

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-hover);
}
.btn--outline:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

.btn--ghost {
  background: transparent;
  color: var(--color-gold);
  padding: 14px 0;
}
.btn--ghost:hover { color: var(--color-gold-hover); }
.btn--ghost::after { content: ' \2192'; }

.btn-group {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* ---- Grid ---- */
.grid {
  display: grid;
  gap: var(--space-md);
}
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

/* ---- Cards ---- */
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: border-color 0.2s, background 0.2s;
}
.card:hover {
  border-color: var(--color-border-hover);
  background: var(--color-bg-card-hover);
}

.card__label {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-gold);
  background: var(--color-gold-dim);
  padding: 3px 10px;
  border-radius: 100px;
  margin-bottom: var(--space-sm);
}

.card h3 { color: var(--color-text); }
.card p { font-size: var(--size-sm); }

.card__link {
  display: inline-block;
  margin-top: var(--space-md);
  font-size: var(--size-xs);
  font-weight: 600;
  color: var(--color-gold);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.card__link::after { content: ' \2192'; }

/* ---- Portfolio Card (larger) ---- */
.portfolio-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: border-color 0.25s, box-shadow 0.25s;
}
.portfolio-card:hover {
  border-color: rgba(201, 168, 76, 0.3);
  box-shadow: 0 0 40px rgba(201, 168, 76, 0.05);
}

.portfolio-card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: var(--size-sm);
  color: #fff;
  margin-bottom: var(--space-md);
}

.portfolio-card h3 {
  font-size: var(--size-xl);
  margin-bottom: var(--space-xs);
}

.portfolio-card__category {
  font-size: var(--size-xs);
  font-weight: 600;
  color: var(--color-gold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-md);
}

.portfolio-card p {
  font-size: var(--size-sm);
  line-height: 1.7;
}

/* ---- Team ---- */
.team-card {
  text-align: center;
}

.team-card__photo {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  margin: 0 auto var(--space-md);
  border: 2px solid var(--color-border);
}

.team-card__photo--placeholder {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: var(--color-bg-card);
  border: 2px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
  font-weight: 800;
  font-size: var(--size-xl);
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}

.team-card h3 {
  font-size: var(--size-md);
  margin-bottom: 2px;
}

.team-card__title {
  font-size: var(--size-xs);
  font-weight: 600;
  color: var(--color-gold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-sm);
}

.team-card p {
  font-size: var(--size-sm);
  max-width: 400px;
  margin: 0 auto;
}

.team-card__social {
  margin-top: var(--space-sm);
}

.team-card__social a {
  font-size: var(--size-xs);
  color: var(--color-text-muted);
  transition: color 0.2s;
}
.team-card__social a:hover { color: var(--color-gold); }

/* ---- Advisor Card ---- */
.advisor-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  display: flex;
  gap: var(--space-md);
  align-items: start;
}

.advisor-card__photo {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.advisor-card__photo--placeholder {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-weight: 700;
  font-size: var(--size-sm);
  color: var(--color-text-muted);
}

.advisor-card h3 { font-size: var(--size-base); margin-bottom: 2px; }
.advisor-card__role { font-size: var(--size-xs); color: var(--color-gold); margin-bottom: var(--space-xs); }
.advisor-card p { font-size: var(--size-sm); }

/* ---- Flywheel ---- */
.flywheel {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  margin-top: var(--space-lg);
}

.flywheel__step {
  background: var(--color-bg-card);
  padding: var(--space-lg);
  text-align: center;
  position: relative;
}

.flywheel__step:first-child { border-radius: var(--radius-lg) 0 0 var(--radius-lg); }
.flywheel__step:last-child { border-radius: 0 var(--radius-lg) var(--radius-lg) 0; }

.flywheel__num {
  font-size: var(--size-3xl);
  font-weight: 800;
  color: var(--color-gold-dim);
  line-height: 1;
  margin-bottom: var(--space-xs);
}

.flywheel__step h3 {
  font-size: var(--size-sm);
  margin-bottom: var(--space-xs);
}

.flywheel__step p {
  font-size: var(--size-xs);
  color: var(--color-text-muted);
}

/* ---- Stat Row ---- */
.stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.stat-row__item { text-align: center; }

.stat-row__value {
  font-size: var(--size-2xl);
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.03em;
  line-height: 1;
}

.stat-row__label {
  font-size: var(--size-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 4px;
}

/* ---- Section Header ---- */
.section-header {
  margin-bottom: var(--space-xl);
}

.section-header--center {
  text-align: center;
}

.section-header p {
  max-width: 560px;
}

.section-header--center p {
  margin-left: auto;
  margin-right: auto;
}

/* ---- CTA Banner ---- */
.cta-banner {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

.cta-banner h3 {
  font-size: var(--size-lg);
  margin-bottom: var(--space-xs);
}

.cta-banner p {
  font-size: var(--size-sm);
  margin-bottom: 0;
}

/* ---- Forms ---- */
.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  font-size: var(--size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font);
  font-size: var(--size-sm);
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color 0.2s;
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--color-gold);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238A8F9E' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.form-success {
  display: none;
  padding: var(--space-lg);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-align: center;
}
.form-success.visible { display: block; }
.form-success p { color: var(--color-text); font-weight: 500; }

/* ---- Footer ---- */
.footer {
  background: var(--color-navy);
  padding: var(--space-xl) 0;
  color: rgba(255,255,255,0.5);
}

.footer__inner {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: var(--space-lg);
}

.footer__brand {
  max-width: 360px;
}

.footer__brand-name {
  font-weight: 800;
  font-size: var(--size-sm);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #FFFFFF;
  margin-bottom: var(--space-sm);
}

.footer__brand p {
  font-size: var(--size-xs);
  color: rgba(255,255,255,0.4);
  line-height: 1.6;
}

.footer__links-group h4 {
  font-size: var(--size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #FFFFFF;
  margin-bottom: var(--space-sm);
}

.footer__links {
  list-style: none;
}

.footer__links li { margin-bottom: var(--space-xs); }

.footer__links a {
  font-size: var(--size-xs);
  color: rgba(255,255,255,0.4);
  text-decoration: none;
  transition: color 0.2s;
}
.footer__links a:hover { color: var(--color-gold); }

.footer__bottom {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer__copy {
  font-size: var(--size-xs);
  color: rgba(255,255,255,0.3);
}

.footer__legal {
  display: flex;
  gap: var(--space-md);
}

.footer__legal a {
  font-size: var(--size-xs);
  color: rgba(255,255,255,0.3);
}
.footer__legal a:hover { color: var(--color-gold); }

/* ---- Page Header ---- */
.page-header {
  padding: var(--space-2xl) 0 var(--space-xl);
  background: var(--color-navy);
}

.page-header h1 { margin-bottom: var(--space-sm); color: #FFFFFF; }
.page-header p { max-width: 560px; font-size: var(--size-md); color: rgba(255,255,255,0.6); }
.page-header .label { color: var(--color-gold); }

/* ---- Ecosystem Orb ---- */
.orb-container {
  position: relative;
  width: 100%;
  max-width: 420px;
  aspect-ratio: 1;
  margin: 0 auto;
}

.orb-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100px;
  height: 100px;
  background: var(--color-navy-light);
  border: 2px solid var(--color-gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  box-shadow: 0 0 40px rgba(201,168,76,0.15);
}

.orb-center__text {
  font-weight: 800;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-gold);
  text-align: center;
  line-height: 1.3;
}

.orb-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 1px solid rgba(201,168,76,0.08);
}

.orb-ring--1 { width: 180px; height: 180px; }
.orb-ring--2 { width: 280px; height: 280px; }
.orb-ring--3 { width: 380px; height: 380px; animation: orbPulse 4s ease-in-out infinite; }

@keyframes orbPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.orb-node {
  position: absolute;
  background: var(--color-navy-mid);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius);
  padding: 10px 16px;
  text-align: center;
  z-index: 2;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.orb-node:hover {
  border-color: var(--color-gold);
  box-shadow: 0 0 20px rgba(201,168,76,0.15);
}

.orb-node__name {
  font-weight: 800;
  font-size: var(--size-xs);
  color: #FFFFFF;
  line-height: 1;
}

.orb-node__type {
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 3px;
}

.orb-node--0030 { top: 5%; left: 50%; transform: translateX(-50%); }
.orb-node--0030 .orb-node__type { color: var(--color-gold); }

.orb-node--penumbra { bottom: 15%; left: 2%; }
.orb-node--penumbra .orb-node__type { color: #7C3AED; }

.orb-node--echelon { bottom: 15%; right: 2%; }
.orb-node--echelon .orb-node__type { color: #34D399; }

/* Connector lines via SVG */
.orb-connectors {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.orb-connector {
  stroke: rgba(255,255,255,0.1);
  stroke-width: 1;
  fill: none;
}

.orb-dot {
  r: 3;
  fill: var(--color-gold);
}

.orb-dot--0030 { fill: #C9A84C; }
.orb-dot--penumbra { fill: #7C3AED; }
.orb-dot--echelon { fill: #34D399; }

@keyframes dotMove {
  0% { offset-distance: 0%; opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { offset-distance: 100%; opacity: 0; }
}

/* ---- Two Column Layout ---- */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
  h1 { font-size: var(--size-2xl); }
  h2 { font-size: var(--size-xl); }

  section { padding: var(--space-xl) 0; }

  .grid--2, .grid--3, .grid--4 {
    grid-template-columns: 1fr;
  }

  .two-col { grid-template-columns: 1fr; }

  .flywheel { grid-template-columns: 1fr 1fr; }
  .flywheel__step:first-child { border-radius: var(--radius-lg) 0 0 0; }
  .flywheel__step:last-child { border-radius: 0 0 var(--radius-lg) 0; }

  .stat-row { grid-template-columns: repeat(2, 1fr); }

  .hero__inner { grid-template-columns: 1fr; }
  .orb-container { max-width: 300px; margin-top: var(--space-lg); }
  .hero__stats { flex-wrap: wrap; gap: var(--space-lg); }

  .cta-banner {
    flex-direction: column;
    text-align: center;
  }

  .footer__inner {
    flex-direction: column;
    gap: var(--space-xl);
  }

  .footer__bottom {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }

  .nav__links {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 29, 47, 0.98);
    backdrop-filter: blur(16px);
    flex-direction: column;
    padding: var(--space-xl) var(--space-md);
    gap: var(--space-lg);
    overflow-y: auto;
  }

  .nav__links.open { display: flex; }
  .nav__links a { font-size: var(--size-base); }
  .nav__mobile-toggle { display: block; }
}

@media (max-width: 480px) {
  :root {
    --size-3xl: 2.25rem;
    --size-2xl: 1.75rem;
  }

  .container { padding: 0 var(--space-sm); }
  .flywheel { grid-template-columns: 1fr; }
  .flywheel__step { border-radius: 0 !important; }
  .flywheel__step:first-child { border-radius: var(--radius-lg) var(--radius-lg) 0 0 !important; }
  .flywheel__step:last-child { border-radius: 0 0 var(--radius-lg) var(--radius-lg) !important; }
  .stat-row { grid-template-columns: 1fr 1fr; }
}