/* =========================================
   STRELOS AI — Landing Page Stylesheet
   Dark-first defense tech aesthetic
   ========================================= */

/* ---- DESIGN TOKENS ---- */
:root,
[data-theme='light'] {
  /* Surfaces — clean white */
  --color-bg: #ffffff;
  --color-surface: #f8f9fb;
  --color-surface-2: #f2f4f7;
  --color-surface-offset: #eef0f5;
  --color-border: #e2e5ed;
  --color-divider: #eaecf2;

  /* Text — near-black, sharp */
  --color-text: #0d1117;
  --color-text-muted: #556075;
  --color-text-faint: #aab0c0;
  --color-text-inverse: #ffffff;

  /* Accent — deep navy blue, precise */
  --color-primary: #1a3fcf;
  --color-primary-hover: #1530a8;
  --color-primary-glow: rgba(26, 63, 207, 0.10);
  --color-primary-subtle: rgba(26, 63, 207, 0.06);

  /* Threat red */
  --color-threat: #d92b2b;
  --color-threat-glow: rgba(217, 43, 43, 0.12);

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(13,17,23,0.07);
  --shadow-md: 0 4px 16px rgba(13,17,23,0.08);
  --shadow-lg: 0 12px 40px rgba(13,17,23,0.10);
  --shadow-glow: 0 0 28px rgba(26, 63, 207, 0.10);

  /* Type */
  --font-display: 'Cabinet Grotesk', 'Helvetica Neue', sans-serif;
  --font-body: 'Satoshi', 'Inter', sans-serif;

  /* Type scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2rem, 1rem + 3.5vw, 4.5rem);

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

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

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

  /* Content widths */
  --content-default: 1120px;
  --content-narrow: 720px;
}

[data-theme='dark'] {
  --color-bg: #0a0c10;
  --color-surface: #0f1218;
  --color-surface-2: #13161e;
  --color-surface-offset: #161a23;
  --color-border: #1e2330;
  --color-divider: #1a1f2b;
  --color-text: #d8dce8;
  --color-text-muted: #6b7490;
  --color-text-faint: #3a3f52;
  --color-text-inverse: #0a0c10;
  --color-primary: #4a6ff5;
  --color-primary-hover: #3a5ce0;
  --color-primary-glow: rgba(74, 111, 245, 0.15);
  --color-primary-subtle: rgba(74, 111, 245, 0.08);
  --color-threat: #ef4444;
  --color-threat-glow: rgba(239, 68, 68, 0.15);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.4);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.5);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.6);
  --shadow-glow: 0 0 32px rgba(74, 111, 245, 0.12);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  hanging-punctuation: first last;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  min-height: 100dvh;
}

img, svg { display: block; max-width: 100%; height: auto; }
ul[role='list'], ol[role='list'] { list-style: none; }
button { cursor: pointer; background: none; border: none; font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { text-wrap: balance; line-height: 1.15; }
p, li { text-wrap: pretty; }

a, button, [role='button'] {
  transition: color var(--transition), background var(--transition), border-color var(--transition), box-shadow var(--transition), opacity var(--transition);
}

::selection { background: var(--color-primary-glow); color: var(--color-text); }
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; border-radius: var(--radius-sm); }

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

/* ---- NAVIGATION ---- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--color-bg) 85%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.nav--scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}
.nav-inner {
  max-width: var(--content-default);
  margin: 0 auto;
  padding: var(--space-5) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-primary);
  flex-shrink: 0;
}
.logo-text {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--color-text);
  text-transform: uppercase;
}
.logo-img {
  height: 156px;
  width: auto;
  display: block;
  object-fit: contain;
}
.footer-logo-img {
  height: 32px;
  width: auto;
  display: block;
  object-fit: contain;
  opacity: 0.85;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.footer-brand-name {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  text-transform: uppercase;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}
.nav-links a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
}
.nav-links a:hover { color: var(--color-text); }
.nav-cta {
  padding: var(--space-2) var(--space-5);
  background: var(--color-primary);
  color: white !important;
  border-radius: var(--radius-md);
  font-weight: 600;
}
.nav-cta:hover { background: var(--color-primary-hover); }
.nav-controls { display: flex; align-items: center; gap: var(--space-3); }
.theme-toggle {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
}
.theme-toggle:hover { color: var(--color-text); background: var(--color-surface-offset); }
.mobile-menu-btn {
  width: 36px; height: 36px;
  display: none; align-items: center; justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
}
.mobile-menu-btn:hover { background: var(--color-surface-offset); }
.mobile-menu {
  display: none;
  flex-direction: column;
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--color-border);
  gap: var(--space-1);
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  padding: var(--space-3) var(--space-2);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text-muted);
  border-radius: var(--radius-md);
}
.mobile-menu a:hover { color: var(--color-text); background: var(--color-surface-offset); }

@media (max-width: 768px) {
  .nav-links { display: none; }
  .mobile-menu-btn { display: flex; }
}

/* ---- HERO ---- */
.hero {
  position: relative;
  overflow: hidden;
  min-height: 90vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--space-12);
  max-width: var(--content-default);
  margin: 0 auto;
  padding: clamp(var(--space-16), 10vw, var(--space-24)) var(--space-6);
}
.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.6;
  mask-image: radial-gradient(ellipse 80% 80% at 70% 50%, black 20%, transparent 80%);
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; }
.hero-product-name {
  font-family: var(--font-display);
  font-size: clamp(3rem, 2rem + 4vw, 6rem);
  font-weight: 900;
  letter-spacing: 0.12em;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-2);
  text-transform: uppercase;
  position: relative;
}
.hero-product-name::after {
  content: '';
  display: block;
  width: 2.5rem;
  height: 3px;
  background: var(--color-primary);
  margin-top: var(--space-3);
  margin-bottom: var(--space-4);
  border-radius: 2px;
  opacity: 0.5;
}
.hero-modules {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
  flex-wrap: wrap;
}
.hero-module {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 1rem + 2vw, 2.6rem);
  font-weight: 900;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  line-height: 1;
}
.hero-module-dot {
  font-size: clamp(1.4rem, 1rem + 1.5vw, 2.2rem);
  color: var(--color-text-faint);
  line-height: 1;
}
.hero-veridis-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
  padding: var(--space-2) var(--space-4);
  background: var(--color-primary-subtle);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-full, 9999px);
}
.hero-veridis-label strong {
  color: var(--color-primary);
  font-weight: 700;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  background: var(--color-primary-subtle);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-full, 9999px);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: var(--space-6);
}
.hero-headline {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 900;
  color: var(--color-text);
  line-height: 1.05;
  margin-bottom: var(--space-6);
  letter-spacing: -0.02em;
}
.hero-sub {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 52ch;
  margin-bottom: var(--space-8);
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
}
.btn {
  display: inline-flex;
  align-items: center;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: var(--color-primary);
  color: white;
  box-shadow: 0 0 20px var(--color-primary-glow);
}
.btn-primary:hover { background: var(--color-primary-hover); box-shadow: 0 0 32px var(--color-primary-glow); }
.btn-ghost {
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  background: transparent;
}
.btn-ghost:hover { border-color: var(--color-text-muted); color: var(--color-text); }

.hero-stats {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  flex-wrap: wrap;
}
.stat { display: flex; flex-direction: column; gap: 2px; }
.stat-value {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 900;
  color: var(--color-primary);
  line-height: 1;
}
.stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  max-width: 15ch;
  line-height: 1.3;
}
.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--color-border);
  flex-shrink: 0;
}

/* Radar Visual */
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1;
  max-width: 480px;
  margin: 0 auto;
}
.radar-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--color-primary);
}
.r1 { width: 80%; height: 80%; opacity: 0.08; }
.r2 { width: 55%; height: 55%; opacity: 0.12; }
.r3 { width: 30%; height: 30%; opacity: 0.2; }
.radar-sweep {
  position: absolute;
  width: 80%;
  height: 80%;
  border-radius: 50%;
  background: conic-gradient(from 0deg, transparent 0%, var(--color-primary) 8%, transparent 10%);
  opacity: 0.35;
  animation: radarSweep 4s linear infinite;
}
@keyframes radarSweep {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.radar-center {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 12px var(--color-primary);
  z-index: 2;
}
.radar-dot {
  position: absolute;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--color-primary);
  z-index: 2;
  animation: blink 2s ease-in-out infinite;
}
.radar-dot.threat {
  background: var(--color-threat);
  box-shadow: 0 0 12px var(--color-threat);
  animation: blinkThreat 1.2s ease-in-out infinite;
}
.d1 { top: 25%; left: 60%; }
.d2 { top: 60%; left: 30%; }
.d3 { top: 35%; left: 38%; width: 9px; height: 9px; }
@keyframes blink {
  0%, 100% { opacity: 1; } 50% { opacity: 0.3; }
}
@keyframes blinkThreat {
  0%, 100% { opacity: 1; box-shadow: 0 0 12px var(--color-threat); }
  50% { opacity: 0.6; box-shadow: 0 0 24px var(--color-threat); }
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: var(--space-16);
  }
  .hero-visual { display: none; }
}
@media (min-width: 901px) and (max-width: 1100px) {
  .hero { gap: var(--space-8); }
  .hero-visual { max-width: 360px; }
}

/* ---- DIFFERENTIATOR STRIP ---- */
.diff-strip {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}
.diff-strip-inner {
  max-width: var(--content-default);
  margin: 0 auto;
  padding: var(--space-5) var(--space-6);
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-8);
}
.diff-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
}
.diff-item svg { color: var(--color-primary); flex-shrink: 0; }

/* ---- SECTIONS ---- */
.section {
  padding: clamp(var(--space-16), 8vw, var(--space-24)) 0;
}
.section--dark { background: var(--color-surface); }
.section--accent {
  background: linear-gradient(135deg, #0e1b3d 0%, #0d1530 50%, #0f2050 100%);
  position: relative;
  overflow: hidden;
}
.section--accent::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 60% at 50% 50%, rgba(26,63,207,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.section-inner {
  max-width: var(--content-default);
  margin: 0 auto;
  padding: 0 var(--space-6);
}
.section-inner--narrow {
  max-width: var(--content-narrow);
}
.section-header {
  margin-bottom: var(--space-12);
  max-width: 56ch;
}
.section-eyebrow {
  display: block;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}
.section-eyebrow--light { color: rgba(147,197,253,0.9); }
.section-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 900;
  color: var(--color-text);
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: var(--space-4);
}
.section--accent .section-title { color: #e2e8f5; }
.section-desc {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 56ch;
  line-height: 1.7;
}
.section--accent .section-desc { color: rgba(148,163,184,0.85); }

/* ---- CAPABILITIES ---- */
.capabilities-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--space-5);
}
@media (max-width: 900px) {
  .capabilities-grid { grid-template-columns: 1fr; }
}
@media (min-width: 901px) {
  .cap-card--featured { grid-column: 1 / -1; display: grid; grid-template-columns: auto 1fr auto; align-items: start; gap: var(--space-6); }
  .cap-card--featured .cap-card-header { flex-direction: column; align-items: flex-start; gap: var(--space-3); }
}

.cap-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color var(--transition), box-shadow var(--transition);
}
.cap-card.visible { opacity: 1; transform: translateY(0); }
.cap-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-glow);
}
.cap-card--featured {
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-surface-offset) 100%);
  border-color: var(--color-border);
}
.cap-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}
.cap-tag {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 900;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  background: var(--color-primary-subtle);
  border: 1px solid var(--color-primary);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm);
  text-transform: uppercase;
}
.cap-icon { color: var(--color-primary); opacity: 0.6; }
.cap-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}
.cap-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-4);
}
.cap-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.cap-list li {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  padding-left: var(--space-4);
  position: relative;
}
.cap-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--color-primary);
}
.integration-note {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-8);
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface-offset);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.integration-note svg { color: var(--color-primary); flex-shrink: 0; }

/* ---- VALIDATION ---- */
.validation-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: var(--space-8);
  align-items: start;
}
@media (max-width: 900px) {
  .validation-layout { grid-template-columns: 1fr; }
}
.validation-card {
  background: var(--color-surface-offset);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  opacity: 0; transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.validation-card.visible { opacity: 1; transform: translateY(0); }
.validation-location {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}
.validation-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}
.validation-card p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-6);
}
.validation-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.vtag {
  font-size: var(--text-xs);
  font-weight: 500;
  padding: var(--space-1) var(--space-3);
  background: var(--color-primary-subtle);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-full, 9999px);
  color: var(--color-primary);
}

.validation-side {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.provenance-block {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-5);
  background: var(--color-surface-offset);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  opacity: 0; transform: translateY(12px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.provenance-block.visible { opacity: 1; transform: translateY(0); }
.provenance-icon {
  flex-shrink: 0;
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-primary-subtle);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-md);
  color: var(--color-primary);
}
.provenance-label {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}
.provenance-block p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ---- USE CASES ---- */
.usecases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
}
@media (max-width: 768px) {
  .usecases-grid { grid-template-columns: 1fr; }
}
.usecase-card {
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  opacity: 0; transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color var(--transition);
}
.usecase-card.visible { opacity: 1; transform: translateY(0); }
.usecase-card:hover { border-color: var(--color-primary); }
.usecase-num {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 900;
  color: var(--color-primary);
  opacity: 0.2;
  line-height: 1;
  margin-bottom: var(--space-4);
}
.usecase-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}
.usecase-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ---- ENGAGEMENT ---- */
.engagement-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
  margin-bottom: var(--space-8);
}
@media (max-width: 768px) {
  .engagement-grid { grid-template-columns: 1fr; }
}
.eng-card {
  padding: var(--space-6);
  background: var(--color-surface-offset);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  opacity: 0; transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color var(--transition);
}
.eng-card.visible { opacity: 1; transform: translateY(0); }
.eng-card:hover { border-color: var(--color-primary); }
.eng-label {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}
.eng-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}
.eng-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}
.contract-strip {
  padding: var(--space-5) var(--space-6);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  gap: var(--space-6);
  flex-wrap: wrap;
}
.contract-strip-label {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  flex-shrink: 0;
}
.contract-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.contract-tags span {
  font-size: var(--text-xs);
  font-weight: 500;
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full, 9999px);
  color: var(--color-text-muted);
}

/* ---- TEAM ---- */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}
@media (max-width: 900px) {
  .team-grid { grid-template-columns: 1fr; }
}
.team-card {
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  opacity: 0; transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.team-card.visible { opacity: 1; transform: translateY(0); }
.team-avatar {
  width: 48px; height: 48px;
  border-radius: var(--radius-md);
  background: var(--color-primary-subtle);
  border: 1px solid var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-4);
}
.team-name {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}
.team-role {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}
.team-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ---- CONTACT ---- */
.section--accent .section-header { max-width: none; text-align: center; margin: 0 auto var(--space-12); }
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
  margin-bottom: var(--space-8);
}
@media (max-width: 768px) {
  .contact-grid { grid-template-columns: 1fr; }
}
.contact-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-6);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-xl);
  opacity: 0; transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color var(--transition), background var(--transition);
}
.contact-card.visible { opacity: 1; transform: translateY(0); }
.contact-card:hover {
  background: rgba(255,255,255,0.07);
  border-color: rgba(147,197,253,0.3);
}
.contact-card-label {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(147,197,253,0.7);
  margin-bottom: var(--space-2);
}
.contact-card-name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 800;
  color: #e2e8f5;
}
.contact-card-detail {
  font-size: var(--text-sm);
  color: rgba(148,163,184,0.7);
}
.contact-card-email {
  font-size: var(--text-sm);
  font-weight: 500;
  color: rgba(147,197,253,0.9);
  margin-top: var(--space-2);
}
.contact-card-phone {
  font-size: var(--text-sm);
  color: rgba(148,163,184,0.7);
}
.contact-footer-note {
  text-align: center;
  font-size: var(--text-xs);
  color: rgba(100,116,139,0.6);
  position: relative;
  z-index: 1;
}

/* ---- FOOTER ---- */
.footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: var(--space-8) 0;
}
.footer-inner {
  max-width: var(--content-default);
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-primary);
}
.footer-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  flex-wrap: wrap;
}
.footer-copy {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* ---- Staggered animation delays ---- */
.cap-card:nth-child(1) { transition-delay: 0ms; }
.cap-card:nth-child(2) { transition-delay: 80ms; }
.cap-card:nth-child(3) { transition-delay: 160ms; }
.usecase-card:nth-child(1) { transition-delay: 0ms; }
.usecase-card:nth-child(2) { transition-delay: 80ms; }
.usecase-card:nth-child(3) { transition-delay: 160ms; }
.usecase-card:nth-child(4) { transition-delay: 240ms; }
.eng-card:nth-child(1) { transition-delay: 0ms; }
.eng-card:nth-child(2) { transition-delay: 80ms; }
.eng-card:nth-child(3) { transition-delay: 160ms; }
.eng-card:nth-child(4) { transition-delay: 240ms; }
.team-card:nth-child(1) { transition-delay: 0ms; }
.team-card:nth-child(2) { transition-delay: 80ms; }
.team-card:nth-child(3) { transition-delay: 160ms; }
.contact-card:nth-child(1) { transition-delay: 0ms; }
.contact-card:nth-child(2) { transition-delay: 80ms; }
.contact-card:nth-child(3) { transition-delay: 160ms; }
.provenance-block:nth-child(2) { transition-delay: 100ms; }

/* ── CONTACT FORM ─────────────────────────────────── */
.contact-form-wrap {
  margin-top: 2.5rem;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 16px;
  padding: 2rem 2.5rem;
}
.contact-form-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--color-text);
}
.contact-form .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}
@media (max-width: 600px) {
  .contact-form .form-row { grid-template-columns: 1fr; }
  .contact-form-wrap { padding: 1.25rem; }
}
.contact-form .form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1rem;
}
.contact-form label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.contact-form input,
.contact-form select,
.contact-form textarea {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 8px;
  padding: 0.65rem 0.9rem;
  font-size: 0.95rem;
  color: var(--color-text);
  font-family: inherit;
  transition: border-color 0.2s;
  outline: none;
  width: 100%;
  box-sizing: border-box;
}
.contact-form input::placeholder,
.contact-form textarea::placeholder { color: var(--color-text-muted); opacity: 0.6; }
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus { border-color: var(--color-accent); }
.contact-form select option { background: #1a1a2e; color: #fff; }
.contact-form textarea { resize: vertical; min-height: 110px; }
.form-submit { margin-top: 0.5rem; width: 100%; justify-content: center; }
.form-note {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin-top: 0.75rem;
  text-align: center;
}
.form-success {
  margin-top: 1rem;
  padding: 0.8rem 1rem;
  background: rgba(34,197,94,0.15);
  border: 1px solid rgba(34,197,94,0.3);
  border-radius: 8px;
  color: #4ade80;
  font-size: 0.9rem;
  text-align: center;
}

/* Team subsections */
.team-subsection-label {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  border-bottom: 1.5px solid var(--color-border);
  padding-bottom: var(--space-2);
  margin-bottom: var(--space-6);
}
.team-grid--leadership {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  margin-bottom: var(--space-4);
}
.team-grid--board {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  max-width: 520px;
}