/* Folio marketing site — black & white, JetBrains Mono throughout. */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:ital,wght@0,100..800;1,100..800&display=swap');

:root {
  --black: #0b0b0c;
  --white: #ffffff;
  --gray-100: #f4f4f5;
  --gray-200: #e4e4e7;
  --gray-400: #a1a1aa;
  --gray-600: #52525b;
  --border: #1a1a1a;
  --radius: 14px;
  --radius-sm: 8px;
  --max: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  background: var(--white);
  color: var(--black);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

a { color: inherit; }

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

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

/* Nav */

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-200);
}

.nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.nav-mark {
  width: 26px;
  height: 26px;
  border-radius: 22%;
  overflow: hidden;
  flex-shrink: 0;
  display: block;
}

.nav-mark img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 13px;
}

.nav-links a {
  text-decoration: none;
  color: var(--gray-600);
  transition: color 0.15s ease;
}

.nav-links a:hover { color: var(--black); }

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--black);
  color: var(--white) !important;
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
  text-decoration: none;
  letter-spacing: 0.01em;
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: 10px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  letter-spacing: 0.01em;
}

.btn-primary {
  background: var(--black);
  color: var(--white);
}

.btn-secondary {
  background: transparent;
  color: var(--black);
  border-color: var(--gray-200);
}

.btn-secondary:hover { border-color: var(--black); }

/* Hero */

.hero {
  padding: 88px 0 64px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(34px, 6vw, 60px);
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin: 22px 0 20px;
  font-weight: 700;
}

.hero p.sub {
  max-width: 560px;
  margin: 0 auto 32px;
  font-size: 15px;
  color: var(--gray-600);
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 64px;
  flex-wrap: wrap;
}

.hero-visual {
  display: flex;
  justify-content: center;
}

/* Placeholder image blocks */

.placeholder {
  position: relative;
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-400);
}

.placeholder .ph-pattern {
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(135deg, var(--gray-200) 0, var(--gray-200) 1px, transparent 1px, transparent 14px);
  opacity: 0.6;
}

.placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
}

.placeholder .ph-label {
  position: relative;
  z-index: 1;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--white);
  border: 1px solid var(--gray-200);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 8px;
}

.phone-frame {
  width: 300px;
  height: 610px;
  border-radius: 42px;
  border: 10px solid var(--black);
  background: var(--black);
  padding: 4px;
}

.phone-frame .placeholder {
  width: 100%;
  height: 100%;
  border-radius: 32px;
  border: none;
}

/* Sections */

section { padding: 72px 0; }

.section-head {
  text-align: center;
  max-width: 560px;
  margin: 0 auto 48px;
}

.section-head h2 {
  font-size: clamp(26px, 4vw, 36px);
  letter-spacing: -0.02em;
  margin: 0 0 14px;
  font-weight: 700;
}

.section-head p {
  color: var(--gray-600);
  font-size: 14px;
  margin: 0;
}

/* Feature grid */

.features { border-top: 1px solid var(--gray-200); background: var(--gray-100); }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--gray-200);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  overflow: hidden;
}

.feature-card {
  background: var(--white);
  padding: 28px 24px;
}

.feature-icon {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  border: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.feature-icon svg { width: 17px; height: 17px; }

.feature-card h3 {
  font-size: 14px;
  font-weight: 600;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: 12.5px;
  color: var(--gray-600);
  margin: 0;
}

/* Showcase */

.showcase-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.showcase-item .placeholder {
  aspect-ratio: 9 / 16;
  border-radius: 18px;
}

.showcase-item span {
  display: block;
  text-align: center;
  margin-top: 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--gray-600);
}

/* Privacy callout */

.callout {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 48px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}

.callout h2 {
  font-size: 24px;
  letter-spacing: -0.02em;
  margin: 0 0 14px;
}

.callout p { color: var(--gray-600); font-size: 13.5px; margin: 0 0 22px; }

.check-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }

.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: var(--black);
}

.check-list svg { flex-shrink: 0; margin-top: 2px; width: 15px; height: 15px; }

/* Final CTA */

.cta-final {
  text-align: center;
  border-top: 1px solid var(--gray-200);
}

.cta-final h2 {
  font-size: clamp(26px, 4vw, 36px);
  letter-spacing: -0.02em;
  margin: 0 0 14px;
}

.cta-final p { color: var(--gray-600); font-size: 14px; margin: 0 0 28px; }

/* Support strip */

.support {
  border-top: 1px solid var(--gray-200);
  background: var(--gray-100);
  text-align: center;
  padding: 56px 0;
}

.support h2 {
  font-size: 22px;
  letter-spacing: -0.02em;
  margin: 0 0 10px;
}

.support p {
  color: var(--gray-600);
  font-size: 13.5px;
  max-width: 440px;
  margin: 0 auto 24px;
}

.btn-coffee {
  background: var(--black);
  color: var(--white);
}

.btn-coffee svg { width: 15px; height: 15px; }

/* Footer */

footer {
  border-top: 1px solid var(--gray-200);
  padding: 40px 0;
}

.footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-links {
  display: flex;
  gap: 24px;
  font-size: 12.5px;
  color: var(--gray-600);
}

.footer-links a { text-decoration: none; }
.footer-links a:hover { color: var(--black); }

.footer-meta { font-size: 12px; color: var(--gray-400); }

/* Policy page */

.policy-header {
  padding: 64px 0 40px;
  border-bottom: 1px solid var(--gray-200);
}

.policy-header h1 {
  font-size: clamp(30px, 5vw, 44px);
  letter-spacing: -0.03em;
  margin: 18px 0 10px;
}

.policy-header .updated { font-size: 12.5px; color: var(--gray-600); }

.policy-body {
  padding: 56px 0 96px;
  max-width: 760px;
  margin: 0 auto;
}

.policy-body h2 {
  font-size: 18px;
  letter-spacing: -0.01em;
  margin: 44px 0 14px;
  padding-top: 4px;
}

.policy-body h2:first-child { margin-top: 0; }

.policy-body p {
  font-size: 14px;
  color: var(--gray-600);
  margin: 0 0 14px;
}

.policy-body ul {
  margin: 0 0 14px;
  padding-left: 20px;
  font-size: 14px;
  color: var(--gray-600);
}

.policy-body li { margin-bottom: 8px; }

.policy-body strong { color: var(--black); }

.notice-box {
  border: 1px solid var(--gray-200);
  background: var(--gray-100);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  font-size: 12.5px;
  color: var(--gray-600);
  margin-bottom: 8px;
}

.notice-box strong { color: var(--black); }

/* Responsive */

@media (max-width: 860px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .showcase-grid { grid-template-columns: repeat(2, 1fr); }
  .callout { grid-template-columns: 1fr; padding: 32px; }
  .nav-links { display: none; }
}

@media (max-width: 520px) {
  .feature-grid { grid-template-columns: 1fr; }
  .showcase-grid { grid-template-columns: repeat(2, 1fr); }
  .phone-frame { width: 240px; height: 490px; }
}