/* BASU-AI — Public website stylesheet
   Requires: brand.css loaded first
   ─────────────────────────────────────────────────────────────── */

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--basu-gray-light);
  background: var(--basu-midnight);
  min-height: 100vh;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; font: inherit; background: none; border: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}


/* ── Typography ─────────────────────────────────────────────────── */
h1, h2, h3, h4, h5 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.15;
  color: var(--basu-white);
}
h1 { font-size: clamp(2.25rem, 5vw, 3.75rem); font-weight: 800; }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.75rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }
h4 { font-size: 1.1rem; }

.display { font-family: var(--font-display); font-weight: 800; }
.mono    { font-family: var(--font-mono); }

.text-teal   { color: var(--basu-teal); }
.text-gold   { color: var(--basu-gold); }
.text-kairos { color: var(--kairos-primary); }
.text-muted  { color: var(--basu-gray-mid); }

.highlight-teal   { color: var(--basu-teal); }
.highlight-gold   { color: var(--basu-gold); }
.highlight-kairos { color: var(--kairos-primary); }
.highlight-green  { color: var(--kairos-primary); }


/* ── Layout utilities ───────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

@media (max-width: 640px) {
  .container { padding: 0 var(--space-md); }
}

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


/* ── Buttons ────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  transition: all var(--transition-base);
  white-space: nowrap;
  cursor: pointer;
  text-decoration: none;
}

.btn-primary {
  background: var(--kairos-primary);
  color: #000;
  font-weight: 600;
}
.btn-primary:hover {
  background: #4ecb62;
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow-kairos);
}

.btn-gold {
  background: var(--basu-gold);
  color: #000;
  font-weight: 600;
}
.btn-gold:hover {
  background: #daa440;
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow-gold);
}

.btn-ghost {
  border: 1px solid var(--border-default);
  color: var(--basu-gray-light);
  background: transparent;
}
.btn-ghost:hover {
  border-color: rgba(178,190,203,0.35);
  color: var(--basu-white);
  background: rgba(255,255,255,0.04);
  transform: translateY(-1px);
}

.btn-teal {
  border: 1px solid rgba(0,188,212,0.4);
  color: var(--basu-teal);
  background: rgba(0,188,212,0.06);
}
.btn-teal:hover {
  border-color: var(--basu-teal);
  background: rgba(0,188,212,0.12);
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow-teal);
}

.btn-lg {
  padding: 0.9rem 2rem;
  font-size: 1rem;
}


/* ── Badges ─────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.55rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  vertical-align: middle;
  margin-left: 0.4rem;
}

.badge-live {
  background: rgba(63,185,80,0.12);
  color: var(--kairos-primary);
  border: 1px solid rgba(63,185,80,0.3);
}
.badge-live::before {
  content: '';
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--kairos-primary);
  margin-right: 0.35rem;
  animation: pulse-dot 2s ease-in-out infinite;
}

.badge-soon {
  background: rgba(200,149,45,0.1);
  color: var(--basu-gold);
  border: 1px solid rgba(200,149,45,0.25);
}

.badge-roadmap {
  background: rgba(100,114,130,0.15);
  color: var(--basu-gray-mid);
  border: 1px solid rgba(100,114,130,0.25);
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}


/* ── Navigation ─────────────────────────────────────────────────── */
.basu-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background var(--transition-base), box-shadow var(--transition-base);
  padding: 0;
}

.basu-nav.scrolled {
  background: rgba(7,11,21,0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--border-subtle);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  height: 64px;
}

/* Brand */
.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
}

.nav-logo-mark {
  width: 28px;
  height: 28px;
}

.nav-wordmark {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
  color: var(--basu-white);
  line-height: 1;
}
.nav-wordmark .wm-dot { color: var(--basu-gold); margin: 0 0.05em; }
.nav-wordmark .wm-ai  { color: var(--basu-teal); }

/* Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  padding: 0.4rem 0.75rem;
  color: var(--basu-gray-light);
  font-size: 0.9rem;
  font-weight: 400;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
}
.nav-link:hover, .nav-link.active {
  color: var(--basu-white);
  background: rgba(255,255,255,0.05);
}

/* Products dropdown */
.nav-dropdown {
  position: relative;
}

.dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--basu-gray-light);
  font-size: 0.9rem;
  font-weight: 400;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
}
.dropdown-toggle:hover {
  color: var(--basu-white);
  background: rgba(255,255,255,0.05);
}

.dropdown-arrow {
  transition: transform var(--transition-fast);
}
.nav-dropdown.open .dropdown-arrow {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(-4px);
  min-width: 280px;
  background: var(--surface-1);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: 0.5rem;
  box-shadow: var(--shadow-elevated);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}
.nav-dropdown.open .dropdown-menu {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.dropdown-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.65rem 0.75rem;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
}
.dropdown-item:hover {
  background: rgba(255,255,255,0.05);
}
.dropdown-item.coming-soon { opacity: 0.6; }
.dropdown-item.coming-soon:hover { opacity: 0.8; }

.dropdown-item-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-top: 2px;
}
.dropdown-item-circle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  font-size: 0.6rem;
  font-weight: 700;
  font-family: var(--font-mono);
}
.dropdown-item-circle.grant  { background: rgba(155,109,255,0.2); color: var(--grants-primary); }
.dropdown-item-circle.opint  { background: rgba(255,112,67,0.2);  color: var(--opint-primary); }

.dropdown-item-content {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.dropdown-item-name {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--basu-white);
  display: flex;
  align-items: center;
}
.dropdown-item-desc {
  font-size: 0.775rem;
  color: var(--basu-gray-mid);
}

/* Nav actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav-cta {
  padding: 0.45rem 1rem;
  background: rgba(63,185,80,0.1);
  border: 1px solid rgba(63,185,80,0.3);
  color: var(--kairos-primary);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.nav-cta:hover {
  background: rgba(63,185,80,0.18);
  border-color: var(--kairos-primary);
  box-shadow: var(--shadow-glow-kairos);
}

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  width: 32px;
  height: 32px;
  align-items: center;
  justify-content: center;
}
.nav-hamburger span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--basu-gray-light);
  transition: all var(--transition-base);
  transform-origin: center;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }


/* ── Mobile nav overlay ─────────────────────────────────────────── */
.mobile-nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: rgba(7,11,21,0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: var(--space-sm);
  transform: translateX(100%);
  transition: transform var(--transition-base);
  padding: var(--space-xl) var(--space-lg);
}
.mobile-nav-overlay.open {
  transform: translateX(0);
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  width: 100%;
  max-width: 280px;
}

.mobile-nav-link {
  display: block;
  width: 100%;
  text-align: center;
  padding: 0.9rem var(--space-lg);
  font-size: 1.1rem;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--basu-gray-light);
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background var(--transition-fast);
  opacity: 0;
  transform: translateX(20px);
}
.mobile-nav-overlay.open .mobile-nav-link {
  opacity: 1;
  transform: translateX(0);
}
.mobile-nav-overlay.open .mobile-nav-link:nth-child(1) { transition: all var(--transition-base) 50ms; }
.mobile-nav-overlay.open .mobile-nav-link:nth-child(2) { transition: all var(--transition-base) 100ms; }
.mobile-nav-overlay.open .mobile-nav-link:nth-child(3) { transition: all var(--transition-base) 150ms; }
.mobile-nav-overlay.open .mobile-nav-link:nth-child(4) { transition: all var(--transition-base) 200ms; }
.mobile-nav-overlay.open .mobile-nav-link:nth-child(5) { transition: all var(--transition-base) 250ms; }
.mobile-nav-link:hover {
  color: var(--basu-white);
  background: rgba(255,255,255,0.05);
}

.mobile-nav-cta {
  margin-top: var(--space-lg);
  display: inline-flex;
  align-items: center;
  padding: 0.85rem 2rem;
  background: rgba(63,185,80,0.1);
  border: 1px solid rgba(63,185,80,0.35);
  color: var(--kairos-primary);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 500;
  opacity: 0;
  transform: translateY(10px);
  transition: all var(--transition-base) 300ms, background var(--transition-fast), border-color var(--transition-fast);
}
.mobile-nav-overlay.open .mobile-nav-cta {
  opacity: 1;
  transform: translateY(0);
}
.mobile-nav-cta:hover {
  background: rgba(63,185,80,0.18);
  border-color: var(--kairos-primary);
}


/* ── Hero section ───────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 64px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 120% 70% at 50% -10%, rgba(0,100,120,0.18) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 85% 90%, rgba(200,149,45,0.07) 0%, transparent 50%),
    radial-gradient(ellipse 40% 40% at 15% 70%, rgba(63,185,80,0.05) 0%, transparent 50%);
  pointer-events: none;
}

.hero-container {
  position: relative;
  max-width: 820px;
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-lg);
  text-align: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--basu-teal);
  margin-bottom: var(--space-lg);
  padding: 0.35rem 0.85rem;
  border: 1px solid rgba(0,188,212,0.25);
  border-radius: 100px;
  background: rgba(0,188,212,0.06);
}

.hero-headline {
  margin-bottom: var(--space-lg);
  letter-spacing: -0.02em;
}

.hero-headline .highlight-gold  { color: var(--basu-gold); }
.hero-headline .highlight-teal  { color: var(--basu-teal); }
.hero-headline .highlight-green { color: var(--kairos-primary); }

.hero-subhead {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--basu-gray-light);
  max-width: 580px;
  margin: 0 auto var(--space-xl);
  line-height: 1.7;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* Entrance animation */
.hero-container > * {
  opacity: 0;
  transform: translateY(16px);
}
.hero-container.animated > * {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.hero-container.animated > *:nth-child(1) { transition-delay: 0ms; }
.hero-container.animated > *:nth-child(2) { transition-delay: 120ms; }
.hero-container.animated > *:nth-child(3) { transition-delay: 240ms; }
.hero-container.animated > *:nth-child(4) { transition-delay: 360ms; }


/* ── Section headers ────────────────────────────────────────────── */
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-xl);
}

.section-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--basu-teal);
  margin-bottom: var(--space-sm);
}

.section-title {
  margin-bottom: var(--space-md);
}

.section-desc {
  color: var(--basu-gray-mid);
  font-size: 1.05rem;
  line-height: 1.7;
}


/* ── Product cards ──────────────────────────────────────────────── */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

@media (max-width: 900px) {
  .product-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
}

.product-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-lg) var(--space-lg) var(--space-xl);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}
.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-elevated);
}
.product-card.kairos:hover  { border-color: rgba(63,185,80,0.3); box-shadow: var(--shadow-elevated), var(--shadow-glow-kairos); }
.product-card.grants:hover  { border-color: rgba(155,109,255,0.3); box-shadow: var(--shadow-elevated); }
.product-card.opint:hover   { border-color: rgba(255,112,67,0.3); box-shadow: var(--shadow-elevated); }

.product-card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
}
.product-card-icon.kairos { background: rgba(63,185,80,0.1); }
.product-card-icon.grants { background: rgba(155,109,255,0.1); }
.product-card-icon.opint  { background: rgba(255,112,67,0.1); }

.product-card-status {
  margin-bottom: var(--space-sm);
}

.product-card h3 {
  font-size: 1.2rem;
  margin-bottom: var(--space-sm);
}

.product-card p {
  font-size: 0.9rem;
  color: var(--basu-gray-mid);
  line-height: 1.65;
  margin-bottom: var(--space-lg);
}

.product-card-link {
  font-size: 0.875rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: gap var(--transition-fast);
}
.product-card.kairos .product-card-link { color: var(--kairos-primary); }
.product-card.grants .product-card-link { color: var(--grants-primary); }
.product-card.opint  .product-card-link { color: var(--opint-primary); }
.product-card-link:hover { gap: 0.7rem; }


/* ── Philosophy / quote block ───────────────────────────────────── */
.philosophy-block {
  background: var(--surface-1);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--basu-teal);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

@media (max-width: 768px) {
  .philosophy-block { grid-template-columns: 1fr; }
}

.philosophy-quote {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.4rem, 3vw, 2rem);
  color: var(--basu-white);
  line-height: 1.2;
}

.philosophy-text {
  color: var(--basu-gray-mid);
  font-size: 0.975rem;
  line-height: 1.75;
}


/* ── Live status strip ──────────────────────────────────────────── */
.live-strip {
  background: rgba(63,185,80,0.04);
  border: 1px solid rgba(63,185,80,0.15);
  border-radius: var(--radius-lg);
  padding: var(--space-md) var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.live-strip-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--kairos-primary);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.live-strip-label::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--kairos-primary);
  animation: pulse-dot 2s ease-in-out infinite;
}

.live-strip-items {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
  flex: 1;
}

.live-strip-item {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.live-strip-item-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--basu-gray-mid);
}

.live-strip-item-value {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--basu-white);
  font-weight: 500;
  transition: opacity 0.4s ease;
}
.live-strip-item-value.refreshing { opacity: 0.3; }

.regime-badge {
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.regime-bull     { background: rgba(63,185,80,0.15); color: var(--kairos-primary); border: 1px solid rgba(63,185,80,0.3); }
.regime-sideways { background: rgba(200,149,45,0.12); color: var(--basu-gold); border: 1px solid rgba(200,149,45,0.25); }
.regime-crash    { background: rgba(248,81,73,0.12); color: #f85149; border: 1px solid rgba(248,81,73,0.25); }
.regime-unknown  { background: rgba(100,114,130,0.12); color: var(--basu-gray-mid); border: 1px solid rgba(100,114,130,0.2); }


/* ── Feature grid ───────────────────────────────────────────────── */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

@media (max-width: 900px) {
  .feature-grid { grid-template-columns: 1fr; }
}

.feature-card {
  background: var(--surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: border-color var(--transition-base), transform var(--transition-base);
}
.feature-card:hover {
  border-color: var(--border-default);
  transform: translateY(-2px);
}

.feature-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  font-size: 1.25rem;
}

.feature-card h4 {
  margin-bottom: var(--space-sm);
  font-size: 1rem;
}

.feature-card p {
  font-size: 0.875rem;
  color: var(--basu-gray-mid);
  line-height: 1.65;
}


/* ── Process flow ───────────────────────────────────────────────── */
.process-flow {
  display: flex;
  align-items: center;
  gap: 0;
  overflow-x: auto;
  padding: var(--space-lg) 0;
}

.process-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  min-width: 120px;
  flex: 1;
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.process-step.visible {
  opacity: 1;
  transform: translateX(0);
}

.process-step-num {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1.5px solid var(--border-default);
  background: var(--surface-1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--basu-teal);
  position: relative;
  z-index: 1;
}

.process-step-label {
  font-size: 0.75rem;
  font-weight: 500;
  text-align: center;
  color: var(--basu-gray-light);
}

.process-arrow {
  flex-shrink: 0;
  color: var(--basu-gray-mid);
  font-size: 0.75rem;
  padding: 0 0.25rem;
  margin-top: -24px;
}


/* ── Strategy comparison ─────────────────────────────────────────── */
.strategy-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

@media (max-width: 768px) {
  .strategy-grid { grid-template-columns: 1fr; }
}

.strategy-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  position: relative;
}

.strategy-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--basu-gray-mid);
  margin-bottom: var(--space-sm);
}

.strategy-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  margin-bottom: var(--space-xs);
}
.strategy-card.alpha .strategy-name { color: var(--basu-teal); }
.strategy-card.beta  .strategy-name { color: var(--basu-gold); }

.strategy-tagline {
  font-size: 0.875rem;
  color: var(--basu-gray-mid);
  margin-bottom: var(--space-lg);
  font-style: italic;
}

.strategy-desc {
  font-size: 0.9rem;
  color: var(--basu-gray-light);
  line-height: 1.7;
}


/* ── FAQ accordion ──────────────────────────────────────────────── */
.faq-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.faq-item {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}
.faq-item:hover { border-color: var(--border-default); }

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  text-align: left;
  color: var(--basu-white);
  font-size: 0.95rem;
  font-weight: 500;
  gap: var(--space-md);
  background: var(--surface-1);
}
.faq-question:hover { background: var(--surface-2); }

.faq-chevron {
  flex-shrink: 0;
  transition: transform var(--transition-base);
}
.faq-item.open .faq-chevron { transform: rotate(180deg); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
  background: var(--surface-1);
}
.faq-item.open .faq-answer { max-height: 400px; }

.faq-answer-inner {
  padding: 0 var(--space-lg) var(--space-md);
  font-size: 0.9rem;
  color: var(--basu-gray-mid);
  line-height: 1.75;
  border-top: 1px solid var(--border-subtle);
  padding-top: var(--space-md);
}


/* ── Contact form ───────────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: var(--space-xl);
  align-items: start;
}

@media (max-width: 768px) {
  .contact-grid { grid-template-columns: 1fr; }
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.form-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--basu-gray-light);
}

.form-input,
.form-textarea {
  background: var(--surface-1);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 0.75rem var(--space-md);
  color: var(--basu-white);
  font: inherit;
  font-size: 0.925rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  width: 100%;
}
.form-input::placeholder,
.form-textarea::placeholder { color: var(--basu-gray-mid); }
.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: rgba(0,188,212,0.5);
  box-shadow: 0 0 0 3px rgba(0,188,212,0.08);
}
.form-textarea { resize: vertical; min-height: 120px; }

.form-success {
  background: rgba(63,185,80,0.08);
  border: 1px solid rgba(63,185,80,0.25);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  color: var(--kairos-primary);
  font-size: 0.9rem;
  display: none;
}
.form-success.visible { display: block; }

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.contact-info-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}
.contact-info-item .label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--basu-gray-mid);
}
.contact-info-item .value {
  font-size: 0.95rem;
  color: var(--basu-white);
}

.investor-cta {
  background: var(--surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
}
.investor-cta h4 { margin-bottom: var(--space-sm); }
.investor-cta p  { font-size: 0.875rem; color: var(--basu-gray-mid); margin-bottom: var(--space-md); }


/* ── Technology stack ───────────────────────────────────────────── */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--space-md);
}

.tech-item {
  background: var(--surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  text-align: center;
  font-size: 0.825rem;
  color: var(--basu-gray-mid);
  font-family: var(--font-mono);
  transition: border-color var(--transition-fast), color var(--transition-fast);
}
.tech-item:hover {
  border-color: var(--border-default);
  color: var(--basu-gray-light);
}


/* ── Agent badges ───────────────────────────────────────────────── */
.agent-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
}

.agent-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.35rem 0.8rem;
  border: 1px solid rgba(0,188,212,0.2);
  border-radius: 100px;
  color: var(--basu-teal);
  background: rgba(0,188,212,0.05);
}


/* ── CTA band ───────────────────────────────────────────────────── */
.cta-band {
  background: var(--surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl) var(--space-lg);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(63,185,80,0.06) 0%, transparent 60%);
  pointer-events: none;
}
.cta-band h2 { margin-bottom: var(--space-md); }
.cta-band p  { color: var(--basu-gray-mid); margin-bottom: var(--space-xl); max-width: 480px; margin-inline: auto; }
.cta-band .btn-group {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}


/* ── Footer ─────────────────────────────────────────────────────── */
.basu-footer {
  border-top: 1px solid var(--border-subtle);
  background: var(--surface-1);
  padding-top: var(--space-2xl);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: var(--space-xl);
  padding-bottom: var(--space-xl);
}

@media (max-width: 768px) {
  .footer-container { grid-template-columns: 1fr; }
}

.footer-logo-link {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: var(--space-md);
}

.footer-wordmark {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
  color: var(--basu-white);
}
.footer-wordmark .wm-dot { color: var(--basu-gold); }
.footer-wordmark .wm-ai  { color: var(--basu-teal); }

.footer-tagline {
  font-size: 0.85rem;
  color: var(--basu-gray-mid);
  line-height: 1.6;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

@media (max-width: 480px) {
  .footer-links { grid-template-columns: repeat(2, 1fr); }
}

.footer-col h4 {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--basu-gray-mid);
  margin-bottom: var(--space-md);
}

.footer-col a {
  display: block;
  font-size: 0.875rem;
  color: var(--basu-gray-light);
  padding: 0.2rem 0;
  transition: color var(--transition-fast);
}
.footer-col a:hover { color: var(--basu-white); }

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-lg) var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--basu-gray-mid);
}

.footer-disclaimer {
  font-size: 0.75rem !important;
  color: var(--basu-gray-mid);
  opacity: 0.7;
}


/* ── Scroll-reveal utility ──────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 100ms; }
.reveal-delay-2 { transition-delay: 200ms; }
.reveal-delay-3 { transition-delay: 300ms; }


/* ── Dividers ───────────────────────────────────────────────────── */
.divider {
  border: none;
  border-top: 1px solid var(--border-subtle);
  margin: var(--space-xl) 0;
}


/* ── Stat counters ──────────────────────────────────────────────── */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-lg);
}

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

.stat-value {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--basu-white);
  line-height: 1;
  margin-bottom: var(--space-xs);
}
.stat-value .stat-suffix { color: var(--basu-teal); }

.stat-label {
  font-size: 0.8rem;
  color: var(--basu-gray-mid);
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}


/* ── Responsive helpers ──────────────────────────────────────────── */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .nav-cta { display: none; }
}

@media (max-width: 640px) {
  h1 { font-size: 2rem; }
  .hero-container { padding: var(--space-xl) var(--space-md); }
  .hero-cta-group { flex-direction: column; align-items: stretch; }
  .hero-cta-group .btn { justify-content: center; }
}


/* ── Belief cards (vision page) ─────────────────────────────────── */
.belief-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

@media (max-width: 900px) {
  .belief-grid { grid-template-columns: 1fr; max-width: 540px; margin: 0 auto; }
}

.belief-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  position: relative;
  transition: border-color var(--transition-base), transform var(--transition-base);
}
.belief-card:hover {
  border-color: var(--border-default);
  transform: translateY(-3px);
}

.belief-num {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  color: var(--basu-teal);
  margin-bottom: var(--space-md);
  opacity: 0.8;
}

.belief-card h3 {
  font-size: 1.05rem;
  margin-bottom: var(--space-md);
  line-height: 1.35;
}

.belief-card p {
  font-size: 0.875rem;
  color: var(--basu-gray-mid);
  line-height: 1.75;
}


/* ── Roadmap timeline (vision page) ─────────────────────────────── */
.roadmap-timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
  padding-top: var(--space-md);
}

.roadmap-timeline::before {
  content: '';
  position: absolute;
  top: calc(var(--space-md) + 12px);
  left: calc(12.5% - 8px);
  right: calc(12.5% - 8px);
  height: 1px;
  background: linear-gradient(to right,
    var(--kairos-primary) 0%,
    var(--kairos-primary) 25%,
    var(--basu-gold) 25%,
    var(--basu-gold) 50%,
    var(--border-default) 50%,
    var(--border-default) 100%
  );
}

@media (max-width: 768px) {
  .roadmap-timeline {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    padding-top: 0;
  }
  .roadmap-timeline::before { display: none; }
}

.roadmap-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 var(--space-md);
  position: relative;
}

@media (max-width: 768px) {
  .roadmap-item {
    flex-direction: row;
    text-align: left;
    padding: 0;
    gap: var(--space-lg);
    align-items: flex-start;
  }
}

.roadmap-dot {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-bottom: var(--space-lg);
  position: relative;
  z-index: 1;
}

.roadmap-item.live .roadmap-dot {
  background: var(--kairos-primary);
  box-shadow: 0 0 0 4px rgba(63,185,80,0.2);
}
.roadmap-item.soon .roadmap-dot {
  background: var(--basu-gold);
  box-shadow: 0 0 0 4px rgba(200,149,45,0.2);
}
.roadmap-item.roadmap .roadmap-dot {
  background: var(--border-default);
  border: 2px solid var(--border-default);
}
.roadmap-item.horizon .roadmap-dot {
  background: transparent;
  border: 2px dashed var(--border-default);
}

@media (max-width: 768px) {
  .roadmap-dot { margin-bottom: 0; margin-top: 4px; }
}

.roadmap-content { flex: 1; }

.roadmap-year {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--basu-gray-mid);
  margin-bottom: var(--space-xs);
}

.roadmap-status { margin-bottom: var(--space-sm); min-height: 22px; }

.roadmap-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--basu-white);
  margin-bottom: var(--space-sm);
}

.roadmap-desc {
  font-size: 0.825rem;
  color: var(--basu-gray-mid);
  line-height: 1.65;
}


/* ── Founder note (vision page) ─────────────────────────────────── */
.founder-note {
  max-width: 720px;
  margin: 0 auto;
  border-left: 3px solid var(--basu-gold);
  padding-left: var(--space-xl);
}

.founder-note .section-label {
  display: block;
  margin-bottom: var(--space-md);
}

.founder-note blockquote {
  font-size: clamp(0.95rem, 1.5vw, 1.1rem);
  color: var(--basu-gray-light);
  line-height: 1.8;
  font-style: italic;
  margin-bottom: var(--space-md);
}

.founder-attribution {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--basu-gray-mid);
  letter-spacing: 0.04em;
}


/* ── Product detail cards (products page) ───────────────────────── */
.product-detail-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  transition: border-color var(--transition-base);
}
.product-detail-card.kairos { border-top: 2px solid rgba(63,185,80,0.4); }
.product-detail-card.grants { border-top: 2px solid rgba(155,109,255,0.35); }
.product-detail-card.opint  { border-top: 2px solid rgba(255,112,67,0.35); }

.product-detail-header {
  display: flex;
  align-items: flex-start;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.product-detail-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.product-detail-icon.kairos { background: rgba(63,185,80,0.12); }
.product-detail-icon.grants { background: rgba(155,109,255,0.12); }
.product-detail-icon.opint  { background: rgba(255,112,67,0.12); }

.product-detail-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  margin-bottom: 0.15rem;
  line-height: 1.1;
}
.product-detail-card.kairos .product-detail-name { color: var(--kairos-primary); }
.product-detail-card.grants .product-detail-name { color: var(--grants-primary); }
.product-detail-card.opint  .product-detail-name { color: var(--opint-primary); }

.product-detail-tagline {
  font-size: 0.9rem;
  color: var(--basu-gray-mid);
}

.product-detail-body > p {
  color: var(--basu-gray-light);
  line-height: 1.75;
  font-size: 1rem;
}

.product-detail-stats {
  display: flex;
  gap: var(--space-xl);
  flex-wrap: wrap;
  margin: var(--space-xl) 0;
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.product-stat {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.product-stat-value {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 2rem;
  color: var(--basu-white);
  line-height: 1;
}
.product-stat-suffix {
  font-size: 1.1rem;
  color: var(--basu-teal);
}

.product-stat-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--basu-gray-mid);
}

.product-detail-actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-top: var(--space-lg);
}


/* ── Email capture (products page) ──────────────────────────────── */
.email-capture-form {
  display: flex;
  gap: var(--space-sm);
  max-width: 400px;
}
.email-capture-form .form-input { flex: 1; }

@media (max-width: 480px) {
  .email-capture-form { flex-direction: column; }
}


/* ── Contact form row ────────────────────────────────────────────── */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

@media (max-width: 580px) {
  .form-row { grid-template-columns: 1fr; }
}