/* ==========================================================================
   Zulu — product page (/apps/zulu). Matches the iOS app: pure black,
   #4A9EFF blue, bold white type, green only as a results accent.
   Self-contained; replaces the old amber styles.css for this page.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
  --bg: #000000;
  --surface: #141416;
  --surface-2: #1C1C1F;
  --line: #28282D;
  --blue: #4A9EFF;
  --blue-dim: rgba(74,158,255,0.12);
  --blue-glow: rgba(74,158,255,0.35);
  --green: #34D17F;
  --text: #FFFFFF;
  --text2: #97979E;
  --text3: #5C5C63;

  --sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max: 1120px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg); color: var(--text); font-family: var(--sans);
  font-size: 17px; line-height: 1.6; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
}
a { color: var(--blue); text-decoration: none; }
a:hover { opacity: 0.85; }
img { display: block; max-width: 100%; }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; border-radius: 4px; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.label { font-size: 13px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--blue); }

/* buttons — blue fill, black text, soft glow (like the app) */
.btn { display: inline-flex; align-items: center; gap: 9px; font-family: var(--sans); font-weight: 700; font-size: 16px; padding: 14px 24px; border-radius: 14px; border: 1px solid transparent; cursor: pointer; transition: transform .12s ease, box-shadow .15s ease, background .15s ease; }
.btn:hover { transform: translateY(-1px); opacity: 1; }
.btn-primary { background: var(--blue); color: #00060F; box-shadow: 0 10px 34px -8px var(--blue-glow); }
.btn-primary:hover { box-shadow: 0 16px 44px -8px var(--blue-glow); }
.btn-ghost { background: var(--surface); color: var(--text); border-color: var(--line); }
.btn-ghost:hover { background: var(--surface-2); }

/* nav */
.nav { position: sticky; top: 0; z-index: 50; background: rgba(0,0,0,0.72); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); }
.nav-in { max-width: var(--max); margin: 0 auto; padding: 15px 24px; display: flex; align-items: center; justify-content: space-between; }
.wordmark { color: var(--text); font-weight: 800; font-size: 19px; letter-spacing: 0.32em; }
.wordmark:hover { opacity: 1; }
.nav-links { display: flex; gap: 26px; align-items: center; }
.nav-links a { color: var(--text2); font-size: 15px; font-weight: 500; }
.nav-links a:hover { color: var(--text); opacity: 1; }
.nav-cta { background: var(--blue); color: #00060F !important; padding: 9px 17px; border-radius: 11px; font-weight: 700; font-size: 14px; }

/* hero */
.hero { padding: 76px 0 56px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; }
.hero .label { display: block; margin-bottom: 22px; }
.hero h1 { font-size: clamp(42px, 6.5vw, 72px); font-weight: 800; line-height: 1.0; letter-spacing: -0.03em; margin-bottom: 22px; }
.hero h1 .b { color: var(--blue); }
.hero-sub { font-size: 19px; color: var(--text2); max-width: 34ch; margin-bottom: 30px; }
.hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-note { margin-top: 18px; font-size: 13px; color: var(--text3); }

/* device frame */
.device-stage { display: flex; justify-content: center; }
.device { width: 286px; max-width: 78vw; border-radius: 42px; padding: 8px; background: #0A0A0C; border: 1px solid var(--line); box-shadow: 0 40px 90px -30px var(--blue-glow), 0 20px 50px -20px rgba(0,0,0,0.8); }
.device img { width: 100%; border-radius: 34px; display: block; }

/* stat strip */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 18px; overflow: hidden; margin-top: 8px; }
.stat { background: var(--bg); padding: 26px 20px; text-align: center; }
.stat b { display: block; font-size: 30px; font-weight: 800; letter-spacing: -0.02em; }
.stat span { font-size: 13px; color: var(--text2); }

/* section frame */
.section { padding: 60px 0; }
.section-head { text-align: center; margin-bottom: 44px; }
.section-head .label { display: block; margin-bottom: 12px; }
.section-head h2 { font-size: clamp(30px, 4vw, 46px); font-weight: 800; letter-spacing: -0.025em; line-height: 1.05; }
.section-head p { font-size: 18px; color: var(--text2); max-width: 60ch; margin: 14px auto 0; }

/* showcase — alternating screenshot + copy */
.showcase { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; padding: 36px 0; }
.showcase.flip .showcase-media { order: 2; }
.showcase-media { display: flex; justify-content: center; }
.showcase-copy .label { display: block; margin-bottom: 14px; }
.showcase-copy h3 { font-size: clamp(26px, 3vw, 36px); font-weight: 800; letter-spacing: -0.02em; line-height: 1.08; margin-bottom: 14px; }
.showcase-copy p { font-size: 17px; color: var(--text2); margin-bottom: 14px; max-width: 42ch; }
.showcase-copy .pt { display: flex; gap: 10px; align-items: flex-start; font-size: 15px; color: var(--text); margin-bottom: 8px; }
.showcase-copy .pt b { color: var(--blue); }

/* compact feature cards */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.fcard { background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 26px; }
.fcard .ico { width: 42px; height: 42px; border-radius: 11px; background: var(--blue-dim); color: var(--blue); display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.fcard .ico svg { width: 21px; height: 21px; }
.fcard h3 { font-size: 18px; font-weight: 700; letter-spacing: -0.01em; margin-bottom: 7px; }
.fcard p { font-size: 14px; color: var(--text2); line-height: 1.6; }

/* pricing */
.pricing { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; max-width: 960px; margin: 0 auto; }
.price { background: var(--surface); border: 1px solid var(--line); border-radius: 20px; padding: 32px 28px; position: relative; }
.price.feat { border-color: var(--blue); box-shadow: 0 0 0 1px var(--blue), 0 24px 60px -24px var(--blue-glow); }
.price .ptier { font-size: 13px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--blue); margin-bottom: 14px; }
.price .pamt { font-size: 46px; font-weight: 800; letter-spacing: -0.03em; line-height: 1; }
.price .pamt span { font-size: 15px; font-weight: 500; color: var(--text2); letter-spacing: 0; }
.price .psub { font-size: 13px; color: var(--text3); margin: 8px 0 22px; }
.price ul { list-style: none; margin-bottom: 24px; }
.price li { padding: 9px 0; border-bottom: 1px solid var(--line); font-size: 14px; display: flex; gap: 10px; align-items: center; }
.price li:last-child { border-bottom: none; }
.price li::before { content: "✓"; color: var(--blue); font-weight: 800; }
.price li.off { color: var(--text3); }
.price li.off::before { content: "—"; color: var(--text3); }
.pbadge { position: absolute; top: -11px; left: 28px; background: var(--blue); color: #00060F; font-size: 11px; font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase; padding: 5px 12px; border-radius: 999px; }

/* faq */
.faq { max-width: 800px; margin: 0 auto; }
.faq details { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; margin-bottom: 12px; }
.faq details[open] { border-color: var(--blue); }
.faq summary { padding: 19px 22px; font-weight: 600; font-size: 16px; cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 16px; align-items: center; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--blue); font-size: 22px; font-weight: 400; }
.faq details[open] summary::after { content: "–"; }
.faq .a { padding: 0 22px 20px; color: var(--text2); font-size: 15px; line-height: 1.7; }

/* cta */
.cta { text-align: center; background: radial-gradient(120% 140% at 50% 0%, rgba(74,158,255,0.14), transparent 60%), var(--surface); border: 1px solid var(--line); border-radius: 24px; padding: 64px 32px; }
.cta h2 { font-size: clamp(30px, 4vw, 46px); font-weight: 800; letter-spacing: -0.025em; margin-bottom: 14px; }
.cta p { color: var(--text2); font-size: 17px; max-width: 46ch; margin: 0 auto 28px; }
.cta-ctas { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* footer */
.footer { border-top: 1px solid var(--line); margin-top: 80px; padding: 48px 0 56px; }
.footer-in { display: flex; justify-content: space-between; gap: 36px; flex-wrap: wrap; }
.footer-brand .wordmark { font-size: 17px; }
.footer-brand p { color: var(--text2); font-size: 14px; margin-top: 12px; max-width: 30ch; }
.footer-links { display: flex; gap: 48px; flex-wrap: wrap; }
.footer-col h4 { font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text3); margin-bottom: 12px; }
.footer-col a { display: block; color: var(--text2); font-size: 14px; margin-bottom: 9px; }
.footer-col a:hover { color: var(--text); opacity: 1; }
.footer-bottom { margin-top: 36px; padding-top: 22px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 13px; color: var(--text3); }
.footer-bottom a { color: var(--text3); }

@media (max-width: 880px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; text-align: center; }
  .hero-sub { margin-left: auto; margin-right: auto; }
  .hero-ctas { justify-content: center; }
  .hero .label { margin-left: auto; margin-right: auto; }
  .showcase { grid-template-columns: 1fr; gap: 32px; }
  .showcase.flip .showcase-media { order: 0; }
  .showcase-copy { text-align: center; }
  .showcase-copy p, .showcase-copy .pt { max-width: none; }
  .showcase-copy .pt { justify-content: center; }
  .feature-grid { grid-template-columns: 1fr; }
  .pricing { grid-template-columns: 1fr; max-width: 420px; }
}
@media (max-width: 520px) {
  .wrap { padding: 0 20px; }
  .hero-ctas { flex-direction: column; }
  .hero-ctas .btn { justify-content: center; }
  .stats { grid-template-columns: 1fr; }
  .nav-links { display: none; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }