/* ============================================================
   Cognitivv — Marketing site
   Extends design_system/colors_and_type.css
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg-cream);
  color: var(--fg-1);
  font-family: var(--font-ui);
  font-size: var(--t-body);
  line-height: var(--lh-loose);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --- Layout --- */
.container { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* --- Buttons --- */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-ui); font-weight: 500; font-size: 14px; line-height: 1;
  cursor: pointer; border: none; text-decoration: none; white-space: nowrap;
  transition: background var(--dur-2) var(--ease-out), color var(--dur-2) var(--ease-out),
              transform var(--dur-1) var(--ease-out), box-shadow var(--dur-2) var(--ease-out);
}
.btn:active { transform: scale(0.98); }
.btn-lg { font-size: 15px; padding: 13px 26px; }

.btn-primary {
  background: var(--accent); color: var(--fg-on-dark-1);
  padding: 10px 20px; border-radius: var(--r-pill);
  box-shadow: inset 0 1px 0 rgba(250,246,239,0.3), 0 1px 2px rgba(42,38,34,0.06);
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-primary:active { background: var(--accent-press); }

.btn-secondary {
  background: transparent; color: var(--fg-1);
  padding: 10px 20px; border-radius: var(--r-pill);
  border: 1px solid rgba(42,38,34,0.2);
}
.btn-secondary:hover { background: var(--bg-cream-deep); border-color: var(--line-1); }

.btn-ghost-dark {
  background: transparent; color: var(--fg-on-dark-1);
  padding: 10px 20px; border-radius: var(--r-pill);
  border: 1px solid rgba(250,246,239,0.2);
}
.btn-ghost-dark:hover { background: rgba(250,246,239,0.08); }

/* --- Shared section parts --- */
.sec-eyebrow {
  display: inline-flex; align-items: center; gap: 8px; margin-bottom: 16px;
}
.sec-headline {
  font-family: var(--font-display); font-size: clamp(32px, 3.5vw, 44px);
  line-height: 1.12; letter-spacing: -0.02em; font-weight: 400; color: var(--fg-1);
}
.sec-headline em { font-style: italic; }
.sec-sub {
  font-family: var(--font-ui); font-size: 16px; line-height: 1.65; color: var(--fg-2);
  max-width: 500px;
}
.sec-center { text-align: center; }
.sec-center .sec-sub { margin: 0 auto; }

/* Orange square motif */
.osq { display: inline-block; width: 8px; height: 8px; background: var(--accent); flex-shrink: 0; }
.osq-sm { display: inline-block; width: 6px; height: 6px; background: var(--accent); flex-shrink: 0; }

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: sticky; top: 0; z-index: 100; height: 60px;
  background: rgba(244,237,225,0.88);
  backdrop-filter: blur(12px) saturate(1.1);
  -webkit-backdrop-filter: blur(12px) saturate(1.1);
  border-bottom: 1px solid var(--line-1);
}
.nav-inner {
  display: flex; align-items: center; height: 100%;
  max-width: 1120px; margin: 0 auto; padding: 0 24px;
}
.nav-logo { display: flex; align-items: center; text-decoration: none; margin-right: 36px; }
.nav-logo img { height: 34px; width: auto; display: block; }
.nav-links { display: flex; align-items: center; gap: 2px; flex: 1; }
.nav-link {
  font-family: var(--font-ui); font-size: 14px; font-weight: 450;
  color: var(--fg-2); text-decoration: none; padding: 7px 12px;
  border-radius: var(--r-sm);
  transition: color var(--dur-2), background var(--dur-2);
}
.nav-link:hover { color: var(--fg-1); background: var(--bg-cream-deep); }
.nav-actions { display: flex; align-items: center; gap: 8px; }
.nav-burger {
  display: none; background: none; border: none; cursor: pointer;
  padding: 8px; color: var(--fg-1); margin-left: 8px;
}
.nav-mobile {
  display: none; flex-direction: column; gap: 4px; padding: 12px 16px 16px;
  background: rgba(244,237,225,0.97); border-top: 1px solid var(--line-1);
}
.nav-mobile.open { display: flex; }
.nav-mobile-link {
  font-family: var(--font-ui); font-size: 15px; color: var(--fg-1);
  text-decoration: none; padding: 10px 12px; border-radius: var(--r-sm);
  transition: background var(--dur-2);
}
.nav-mobile-link:hover { background: var(--bg-cream-deep); }
.nav-mobile-ctas { display: flex; flex-direction: column; gap: 8px; margin-top: 8px; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative; background: var(--bg-cream);
  padding: 96px 0 88px; overflow: hidden; min-height: 680px;
}
.hero-waves {
  position: absolute; inset: 0; width: 100%; height: 100%;
  pointer-events: none; z-index: 0;
}
.hero-inner {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 64px; align-items: center;
  max-width: 1120px; margin: 0 auto; padding: 0 24px;
}
.hero-text { max-width: 540px; }
.hero-eyebrow { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 24px; }
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(40px, 4.8vw, 62px);
  line-height: 1.08; letter-spacing: -0.02em; font-weight: 400; color: var(--fg-1);
  margin-bottom: 24px;
}
.hero-headline em { font-style: italic; color: var(--accent); }
.hero-body {
  font-family: var(--font-ui); font-size: 17px; line-height: 1.65;
  color: var(--fg-2); margin-bottom: 36px; max-width: 480px;
}
.hero-ctas { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }

/* --- Hero mockup --- */
.hero-mockup { position: relative; display: flex; flex-direction: column; gap: 14px; align-items: flex-end; }
.mockup-main {
  background: var(--bg-cream-soft); border: 1px solid var(--line-1);
  border-radius: var(--r-xl); padding: 28px; width: 100%; max-width: 400px;
  box-shadow: var(--shadow-md);
}
.mockup-top-row { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.mockup-pill {
  display: inline-flex; align-items: center; gap: 7px;
  background: var(--accent-tint); color: #b94d18;
  font-family: var(--font-ui); font-size: 11px; font-weight: 500;
  letter-spacing: 0.08em; text-transform: uppercase;
  padding: 5px 10px; border-radius: var(--r-pill);
}
.mockup-pill-dot {
  width: 6px; height: 6px; background: var(--accent); border-radius: 50%;
  animation: blink 1.8s ease-in-out infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.35} }
.mockup-course-label { font-family: var(--font-ui); font-size: 12px; color: var(--fg-3); }
.mockup-title {
  font-family: var(--font-display); font-size: 23px; line-height: 1.2; color: var(--fg-1);
  margin-bottom: 5px;
}
.mockup-meta { font-family: var(--font-ui); font-size: 12px; color: var(--fg-3); margin-bottom: 14px; }
.mockup-bar-track {
  height: 4px; background: var(--bg-cream-deep);
  border-radius: var(--r-pill); overflow: hidden; margin-bottom: 18px;
}
.mockup-bar-fill {
  height: 100%; background: var(--accent); border-radius: var(--r-pill);
  width: 0%; transition: width 1.4s var(--ease-out);
}
.mockup-bar-fill.run { width: 72%; }
.mockup-modules { display: flex; flex-direction: column; gap: 7px; margin-bottom: 20px; }
.mockup-mod {
  display: flex; align-items: center; gap: 10px; padding: 9px 12px;
  background: var(--bg-cream); border: 1px solid var(--line-1);
  border-radius: var(--r-sm); font-family: var(--font-ui); font-size: 13px; color: var(--fg-1);
  opacity: 0; transform: translateY(5px);
  transition: opacity var(--dur-3) var(--ease-out), transform var(--dur-3) var(--ease-out);
}
.mockup-mod.show { opacity: 1; transform: none; }
.mockup-mod.pending { color: var(--fg-3); }
.mockup-mod.pending.show { opacity: 0.5; }
.mod-sq { width: 6px; height: 6px; background: var(--accent); flex-shrink: 0; }
.mod-sq.grey { background: var(--fg-4); }
.mockup-btn { width: 100%; justify-content: center; }

/* Floating stat card */
.mockup-float {
  background: var(--bg-cream-soft); border: 1px solid var(--line-1);
  border-radius: var(--r-md); padding: 16px 18px;
  box-shadow: var(--shadow-sm); min-width: 210px; align-self: flex-start;
  margin-right: 20px;
}
.float-num {
  font-family: var(--font-display); font-size: 30px; color: var(--fg-1);
  line-height: 1; margin-bottom: 4px;
}
.float-label { font-family: var(--font-ui); font-size: 12px; color: var(--fg-3); margin-bottom: 10px; }
.float-bar { height: 3px; background: var(--bg-cream-deep); border-radius: var(--r-pill); overflow: hidden; }
.float-bar-fill { height: 100%; width: 78%; background: var(--success); border-radius: var(--r-pill); }
.float-enroll {
  display: flex; align-items: center; gap: 6px; margin-top: 8px;
  font-family: var(--font-ui); font-size: 12px; color: var(--fg-3);
}
.float-dot { width: 6px; height: 6px; background: var(--success); border-radius: 50%; }

/* ============================================================
   TRUST BAR
   ============================================================ */
.trust-bar {
  background: var(--bg-cream-deep); padding: 18px 0;
  border-top: 1px solid var(--line-1); border-bottom: 1px solid var(--line-1);
}
.trust-inner {
  max-width: 1120px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; gap: 28px; flex-wrap: wrap;
}
.trust-label {
  font-family: var(--font-ui); font-size: 11px; font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-3); white-space: nowrap;
}
.trust-divider { width: 1px; height: 16px; background: var(--line-2); flex-shrink: 0; }
.trust-items { display: flex; align-items: center; gap: 32px; flex-wrap: wrap; }
.trust-item { font-family: var(--font-ui); font-size: 13px; font-weight: 500; color: var(--fg-3); }

/* ============================================================
   HOW IT WORKS
   ============================================================ */
.how {
  background: var(--bg-cream-soft); padding: 96px 0;
}
.how-header { text-align: center; margin-bottom: 56px; }
.how-header .sec-headline { margin: 8px auto 14px; }
.how-header .sec-sub { text-align: center; }

.steps {
  display: grid; grid-template-columns: repeat(4,1fr);
  border: 1px solid var(--line-1); border-radius: var(--r-lg); overflow: hidden;
  background: var(--line-1); gap: 1px;
}
.step {
  background: var(--bg-cream-soft); padding: 32px 26px;
  transition: background var(--dur-2);
}
.step:hover { background: var(--bg-cream); }
.step-num {
  font-family: var(--font-display); font-size: 64px; line-height: 1;
  color: var(--line-1); letter-spacing: -0.03em;
  margin-bottom: 20px; user-select: none;
}
.step-icon {
  width: 40px; height: 40px; border-radius: var(--r-sm);
  background: var(--bg-cream-deep); display: flex; align-items: center;
  justify-content: center; margin-bottom: 14px; color: var(--accent);
}
.step-title {
  font-family: var(--font-ui); font-size: 15px; font-weight: 500;
  color: var(--fg-1); margin-bottom: 8px;
}
.step-body { font-family: var(--font-ui); font-size: 13px; line-height: 1.65; color: var(--fg-2); }

/* ============================================================
   WHY SWITCH
   ============================================================ */
.why { background: var(--bg-cream); padding: 96px 0; }
.why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.why-before {
  background: var(--bg-cream-soft); border: 1px solid var(--line-1);
  border-radius: var(--r-lg); padding: 28px 32px; margin-top: 12px;
}
.why-before-lbl {
  font-family: var(--font-ui); font-size: 11px; font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-3); margin-bottom: 18px;
}
.pain-list { list-style: none; display: flex; flex-direction: column; gap: 14px; }
.pain-item { display: flex; align-items: flex-start; gap: 12px; font-family: var(--font-ui); font-size: 14px; line-height: 1.55; color: var(--fg-2); }
.pain-dash { width: 14px; height: 2px; background: var(--fg-4); margin-top: 10px; flex-shrink: 0; }

.benefits { display: flex; flex-direction: column; gap: 12px; margin-top: 12px; }
.benefit {
  display: flex; align-items: flex-start; gap: 14px; padding: 18px 20px;
  background: var(--bg-cream-soft); border: 1px solid var(--line-1);
  border-radius: var(--r-md);
  transition: box-shadow var(--dur-2) var(--ease-out), transform var(--dur-2) var(--ease-out);
}
.benefit:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); }
.benefit-icon {
  width: 36px; height: 36px; border-radius: var(--r-sm); background: var(--accent-tint);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0; color: var(--accent);
}
.benefit-title { font-family: var(--font-ui); font-size: 14px; font-weight: 500; color: var(--fg-1); margin-bottom: 3px; }
.benefit-body { font-family: var(--font-ui); font-size: 13px; line-height: 1.55; color: var(--fg-2); }

/* ============================================================
   USE CASES (orange)
   ============================================================ */
.uses { background: var(--bg-orange); padding: 96px 0; }
.uses-header { text-align: center; margin-bottom: 52px; }
.uses-header .sec-headline { color: var(--fg-on-dark-1); margin: 8px auto 14px; }
.uses-header .sec-sub { color: rgba(250,246,239,0.7); margin: 0 auto; }

.use-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; margin-bottom: 14px; }
.use-card {
  background: rgba(250,246,239,0.1); border: 1px solid rgba(250,246,239,0.14);
  border-radius: var(--r-lg); padding: 28px 26px;
  transition: background var(--dur-2), transform var(--dur-2) var(--ease-out);
}
.use-card:hover { background: rgba(250,246,239,0.16); transform: translateY(-2px); }
.use-card-icon {
  width: 44px; height: 44px; background: rgba(250,246,239,0.14);
  border-radius: var(--r-sm); display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px; color: var(--fg-on-dark-1);
}
.use-card-title { font-family: var(--font-display); font-size: 22px; color: var(--fg-on-dark-1); margin-bottom: 10px; line-height: 1.2; }
.use-card-body, .use-case-body { font-family: var(--font-ui); font-size: 14px; line-height: 1.65; color: rgba(250,246,239,0.72); margin-bottom: 16px; }
.use-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.use-tag {
  font-family: var(--font-ui); font-size: 11px; font-weight: 500;
  letter-spacing: 0.06em; text-transform: uppercase; color: rgba(250,246,239,0.6);
  background: rgba(250,246,239,0.08); border: 1px solid rgba(250,246,239,0.14);
  border-radius: var(--r-pill); padding: 4px 10px;
}

.verticals { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 14px; }
.vert-card {
  background: rgba(26,24,22,0.18); border: 1px solid rgba(250,246,239,0.1);
  border-radius: var(--r-md); padding: 20px 22px;
  display: flex; align-items: flex-start; gap: 14px;
}
.vert-icon {
  width: 40px; height: 40px; background: rgba(250,246,239,0.12);
  border-radius: var(--r-sm); display: flex; align-items: center;
  justify-content: center; flex-shrink: 0; color: var(--fg-on-dark-1);
}
.vert-title { font-family: var(--font-ui); font-size: 14px; font-weight: 500; color: var(--fg-on-dark-1); margin-bottom: 4px; }
.vert-body { font-family: var(--font-ui); font-size: 13px; line-height: 1.55; color: rgba(250,246,239,0.65); }

/* ============================================================
   PRODUCT FEATURES
   ============================================================ */
.features { background: var(--bg-cream-soft); padding: 96px 0; }
.features-top {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 56px; align-items: end; margin-bottom: 52px;
}
.features-headline {
  font-family: var(--font-display); font-size: clamp(34px, 3.5vw, 48px);
  line-height: 1.1; letter-spacing: -0.02em; font-weight: 400; color: var(--fg-1);
}
.features-headline em { font-style: italic; }
.features-sub { font-family: var(--font-ui); font-size: 15px; line-height: 1.65; color: var(--fg-2); }

.feat-grid {
  display: grid; grid-template-columns: repeat(3,1fr);
  border: 1px solid var(--line-1); border-radius: var(--r-lg); overflow: hidden;
  background: var(--line-1); gap: 1px;
}
.feat-tile {
  background: var(--bg-cream-soft); padding: 28px;
  transition: background var(--dur-2);
}
.feat-tile:hover { background: var(--bg-cream); }
.feat-icon {
  width: 36px; height: 36px; border-radius: var(--r-xs); background: var(--bg-cream-deep);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 14px; color: var(--accent);
}
.feat-title { font-family: var(--font-ui); font-size: 14px; font-weight: 500; color: var(--fg-1); margin-bottom: 6px; }
.feat-body { font-family: var(--font-ui); font-size: 13px; line-height: 1.6; color: var(--fg-2); }
.feat-badge {
  display: inline-block; margin-top: 10px;
  font-family: var(--font-ui); font-size: 10px; font-weight: 500;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: #b94d18; background: var(--accent-tint);
  border-radius: var(--r-pill); padding: 3px 8px;
}

/* ============================================================
   FINAL CTA
   ============================================================ */
.cta-section { background: var(--bg-charcoal); padding: 120px 0; text-align: center; }
.cta-headline {
  font-family: var(--font-display); font-size: clamp(38px, 5vw, 62px);
  line-height: 1.08; letter-spacing: -0.02em; font-weight: 400; color: var(--fg-on-dark-1);
  max-width: 640px; margin: 0 auto 20px;
}
.cta-headline em { font-style: italic; color: var(--accent); }
.cta-body {
  font-family: var(--font-ui); font-size: 16px; line-height: 1.65;
  color: var(--fg-on-dark-2); max-width: 460px; margin: 0 auto 40px;
}
.cta-actions { display: flex; align-items: center; justify-content: center; gap: 12px; flex-wrap: wrap; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--bg-charcoal-2); padding: 36px 0;
  border-top: 1px solid var(--line-on-dark-1);
}
.footer-inner {
  max-width: 1120px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap;
}
.footer-logo img { height: 17px; }
.footer-links { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-link {
  font-family: var(--font-ui); font-size: 13px; color: var(--fg-on-dark-3);
  text-decoration: none; transition: color var(--dur-2);
}
.footer-link:hover { color: var(--fg-on-dark-2); }
.footer-copy { font-family: var(--font-ui); font-size: 12px; color: var(--fg-on-dark-3); }

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.reveal {
  opacity: 0; transform: translateY(14px);
  transition: opacity var(--dur-4) var(--ease-out), transform var(--dur-4) var(--ease-out);
}
.reveal.in { opacity: 1; transform: none; }
.stagger > * {
  opacity: 0; transform: translateY(8px);
  transition: opacity var(--dur-4) var(--ease-out), transform var(--dur-4) var(--ease-out);
}
.stagger.in > *:nth-child(1) { opacity:1;transform:none;transition-delay:0ms }
.stagger.in > *:nth-child(2) { opacity:1;transform:none;transition-delay:60ms }
.stagger.in > *:nth-child(3) { opacity:1;transform:none;transition-delay:120ms }
.stagger.in > *:nth-child(4) { opacity:1;transform:none;transition-delay:180ms }
.stagger.in > *:nth-child(5) { opacity:1;transform:none;transition-delay:240ms }
.stagger.in > *:nth-child(6) { opacity:1;transform:none;transition-delay:300ms }
.stagger.in > *:nth-child(7) { opacity:1;transform:none;transition-delay:360ms }
.stagger.in > *:nth-child(8) { opacity:1;transform:none;transition-delay:420ms }
.stagger.in > *:nth-child(9) { opacity:1;transform:none;transition-delay:480ms }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .steps { grid-template-columns: repeat(2,1fr); }
  .use-grid { grid-template-columns: repeat(2,1fr); }
  .feat-grid { grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 768px) {
  .footer-inner { justify-content: center; text-align: center; }
  .footer-links { justify-content: center; }
  .footer-inner > div:last-child { align-items: center !important; }
  .nav-links, .nav-actions { display: none; }
  .nav-burger { display: flex; align-items: center; justify-content: center; margin-left: auto; }
  .hero { padding: 64px 0 72px; min-height: auto; }
  .hero-inner { grid-template-columns: 1fr; gap: 44px; }
  .hero-text { max-width: 100%; }
  .hero-mockup { align-items: stretch; }
  .mockup-main { max-width: 100%; }
  .mockup-float { align-self: stretch; margin-right: 0; }
  .why-grid { grid-template-columns: 1fr; gap: 40px; }
  .use-grid { grid-template-columns: 1fr; }
  .verticals { grid-template-columns: 1fr; }
  .features-top { grid-template-columns: 1fr; gap: 20px; }
  .feat-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .how, .why, .uses, .features { padding: 72px 0; }
  .cta-section { padding: 88px 0; }
}

@media (max-width: 480px) {
  .hero-headline { font-size: 36px; }
  .hero-ctas { flex-direction: column; align-items: stretch; }
  .hero-ctas .btn { justify-content: center; }
  .cta-actions { flex-direction: column; align-items: stretch; }
  .cta-actions .btn { justify-content: center; }
  .trust-items { gap: 16px; }
}