/* ===========================================================
   Composa — landing page styles
   Brand: #BD5AF4 → #FA6B9E on #0B0B10
   =========================================================== */

:root {
  --bg: #0B0B10;
  --bg-alt: #101018;
  --surface: #15151f;
  --surface-2: #1b1b27;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #F3F1F8;
  --text-dim: #A9A6B8;
  --text-faint: #76738a;

  --purple: #BD5AF4;
  --pink: #FA6B9E;
  --grad: linear-gradient(120deg, #BD5AF4 0%, #FA6B9E 100%);
  --grad-soft: linear-gradient(120deg, rgba(189, 90, 244, 0.18), rgba(250, 107, 158, 0.18));

  --radius: 16px;
  --radius-lg: 22px;
  --maxw: 1160px;
  --shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.8);
  --shadow-glow: 0 20px 60px -20px rgba(189, 90, 244, 0.45);

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
ul, ol { margin: 0; padding: 0; list-style: none; }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: 24px;
}
.container--narrow { max-width: 780px; }

.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--purple);
  color: #fff;
  padding: 10px 16px;
  border-radius: 0 0 10px 0;
  z-index: 200;
}
.skip-link:focus { left: 0; }

/* ===================== BUTTONS ===================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  font-weight: 600;
  font-size: 15px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .25s ease, background .25s ease, border-color .25s ease;
  white-space: nowrap;
}
.btn--sm { padding: 9px 18px; font-size: 14px; }
.btn--lg { padding: 15px 28px; font-size: 16px; }
.btn--block { width: 100%; }

.btn--primary {
  background: var(--grad);
  color: #fff;
  box-shadow: var(--shadow-glow);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 26px 70px -18px rgba(250, 107, 158, 0.55);
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border-strong);
  color: var(--text);
}
.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-2px);
}

@media (prefers-reduced-motion: reduce) {
  .btn:hover { transform: none; }
}

/* ===================== NAV ===================== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(11, 11, 16, 0.55);
  border-bottom: 1px solid transparent;
  transition: background .3s ease, border-color .3s ease;
}
.nav.is-scrolled {
  background: rgba(11, 11, 16, 0.82);
  border-bottom-color: var(--border);
}
.nav__inner {
  max-width: var(--maxw);
  margin-inline: auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.logo { display: inline-flex; align-items: center; gap: 9px; font-weight: 800; letter-spacing: -0.02em; }
.logo__mark { flex: none; }
.logo__text { font-size: 18px; }

.nav__links {
  margin-left: auto;
  display: flex;
  gap: 28px;
  font-size: 15px;
  color: var(--text-dim);
}
.nav__links a { transition: color .2s ease; }
.nav__links a:hover { color: var(--text); }

.nav__inner .btn--primary { margin-left: 8px; }
.nav__links + .btn { margin-left: 0; }

@media (max-width: 820px) {
  .nav__links { display: none; }
  .nav__inner .btn--primary { margin-left: auto; }
}

/* ===================== HERO ===================== */
.hero {
  position: relative;
  padding: 72px 0 48px;
  overflow: hidden;
}
.hero__glow {
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 760px;
  background:
    radial-gradient(60% 60% at 25% 20%, rgba(189, 90, 244, 0.30), transparent 70%),
    radial-gradient(55% 55% at 80% 10%, rgba(250, 107, 158, 0.26), transparent 70%);
  filter: blur(20px);
  pointer-events: none;
  z-index: 0;
}
.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--pink);
  margin: 0 0 18px;
  padding: 6px 14px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: var(--grad-soft);
}

.hero__title {
  font-size: clamp(2.4rem, 5.2vw, 4rem);
  line-height: 1.04;
  letter-spacing: -0.03em;
  font-weight: 800;
  margin: 0 0 20px;
}
.hero__sub {
  font-size: clamp(1.02rem, 1.6vw, 1.2rem);
  color: var(--text-dim);
  max-width: 540px;
  margin: 0 0 32px;
}
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 16px; }
.hero__req { font-size: 13.5px; color: var(--text-faint); margin: 0; }

/* App mock window */
.hero__mock { position: relative; }
.appwin {
  position: relative;
  background: linear-gradient(160deg, var(--surface), var(--bg-alt));
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.appwin::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(160deg, rgba(189,90,244,.5), rgba(250,107,158,.2) 40%, transparent 70%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
.appwin__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
}
.dot { width: 11px; height: 11px; border-radius: 50%; }
.dot--red { background: #ff5f57; }
.dot--amber { background: #febc2e; }
.dot--green { background: #28c840; }
.appwin__title { margin-left: 8px; font-size: 13px; color: var(--text-faint); font-weight: 600; }

.appwin__body { padding: 22px; display: grid; gap: 18px; }
.appwin__prompt {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
}
.appwin__label {
  display: block;
  font-size: 11.5px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 6px;
}
.appwin__prompt p { margin: 0; font-size: 15px; color: var(--text); }

.appwin__viz {
  position: relative;
  background: radial-gradient(120% 120% at 50% 120%, rgba(189,90,244,.18), transparent 60%), var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  display: flex;
  justify-content: center;
}
.eq { width: 100%; height: 110px; }
.eq rect { transform-box: fill-box; transform-origin: bottom; }

.sparkle { position: absolute; width: 18px; height: 18px; opacity: .9; }
.sparkle--1 { top: 14px; right: 22px; animation: twinkle 2.6s ease-in-out infinite; }
.sparkle--2 { bottom: 16px; left: 26px; width: 13px; animation: twinkle 2.6s ease-in-out infinite .9s; }
@keyframes twinkle {
  0%, 100% { opacity: .25; transform: scale(.7) rotate(0deg); }
  50% { opacity: 1; transform: scale(1) rotate(20deg); }
}

.appwin__controls { display: flex; flex-wrap: wrap; gap: 9px; }
.chip {
  font-size: 13px;
  padding: 7px 13px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-dim);
}
.chip--on { background: var(--grad-soft); border-color: rgba(250,107,158,.4); color: var(--text); }
.chip--play { margin-left: auto; background: var(--grad); color: #fff; border-color: transparent; font-weight: 600; }

/* trust bar */
.trustbar {
  margin-top: 56px;
  padding: 22px 0 0;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 14px 40px;
  justify-content: space-between;
  font-size: 15px;
  color: var(--text-dim);
}
.trustbar .grad-text { font-weight: 700; }

@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; gap: 40px; }
  .hero { padding-top: 48px; }
  .trustbar { justify-content: flex-start; }
}

/* ===================== SECTIONS ===================== */
.section { padding: 96px 0; position: relative; }
.section--alt { background: var(--bg-alt); border-block: 1px solid var(--border); }

.section__head { max-width: 680px; margin: 0 auto 56px; text-align: center; }
.section__head .eyebrow { margin-bottom: 16px; }
.section__title {
  font-size: clamp(1.9rem, 3.6vw, 2.8rem);
  line-height: 1.1;
  letter-spacing: -0.025em;
  font-weight: 800;
  margin: 0 0 14px;
}
.section__lead { font-size: 1.08rem; color: var(--text-dim); margin: 0; }

/* ===================== CARDS / GRID ===================== */
.grid { display: grid; gap: 22px; }
.grid--features { grid-template-columns: repeat(3, 1fr); }
.grid--pricing { grid-template-columns: repeat(2, 1fr); gap: 26px; max-width: 880px; margin-inline: auto; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: transform .25s ease, border-color .25s ease, background .25s ease;
}
.card--feature:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  background: var(--surface-2);
}
@media (prefers-reduced-motion: reduce) { .card:hover { transform: none; } }

.card--feature .ic {
  width: 48px; height: 48px;
  display: grid; place-items: center;
  border-radius: 14px;
  background: var(--grad-soft);
  border: 1px solid var(--border-strong);
  font-size: 22px;
  margin-bottom: 18px;
}
.card--feature h3 { margin: 0 0 8px; font-size: 1.18rem; letter-spacing: -0.01em; }
.card--feature p { margin: 0; color: var(--text-dim); font-size: 15px; }

.card--accent {
  background: linear-gradient(160deg, rgba(189,90,244,.14), rgba(250,107,158,.10)), var(--surface);
  border-color: rgba(250,107,158,.35);
}

@media (max-width: 900px) {
  .grid--features { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .grid--features { grid-template-columns: 1fr; }
  .section { padding: 68px 0; }
}

/* ===================== STEPS ===================== */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  counter-reset: step;
}
.step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px 28px;
  position: relative;
}
.step__num {
  display: grid; place-items: center;
  width: 44px; height: 44px;
  border-radius: 50%;
  font-weight: 800;
  font-size: 18px;
  color: #fff;
  background: var(--grad);
  box-shadow: var(--shadow-glow);
  margin-bottom: 18px;
}
.step h3 { margin: 0 0 8px; font-size: 1.2rem; }
.step p { margin: 0; color: var(--text-dim); font-size: 15px; }
@media (max-width: 800px) { .steps { grid-template-columns: 1fr; } }

/* ===================== PRICING ===================== */
.card--price {
  display: flex;
  flex-direction: column;
  padding: 32px;
  position: relative;
}
.card--price-pro {
  background: linear-gradient(165deg, rgba(189,90,244,.16), rgba(250,107,158,.10)), var(--surface);
  border-color: rgba(250,107,158,.4);
  box-shadow: var(--shadow-glow);
}
.price__badge {
  position: absolute;
  top: 20px; right: 22px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--grad);
  color: #fff;
}
.price__name { margin: 0 0 6px; font-size: 1.3rem; }
.price__tag { margin: 0 0 6px; font-size: 2.2rem; font-weight: 800; letter-spacing: -0.02em; }
.card--price-pro .price__tag { font-size: 1.5rem; }
.price__desc { margin: 0 0 20px; color: var(--text-dim); font-size: 15px; }
.price__list { display: grid; gap: 11px; margin: 0 0 26px; }
.price__list li {
  position: relative;
  padding-left: 28px;
  font-size: 15px;
  color: var(--text);
}
.price__list li::before {
  content: "";
  position: absolute;
  left: 0; top: 6px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--grad);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='%23000' d='M6.5 10.6 3.9 8l-1 1 3.6 3.6 7-7-1-1z'/%3E%3C/svg%3E") center / 16px no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='%23000' d='M6.5 10.6 3.9 8l-1 1 3.6 3.6 7-7-1-1z'/%3E%3C/svg%3E") center / 16px no-repeat;
}
.card--price .btn { margin-top: auto; }
.price__note { text-align: center; color: var(--text-faint); font-size: 13.5px; margin: 24px 0 0; }

@media (max-width: 700px) { .grid--pricing { grid-template-columns: 1fr; } }

/* ===================== DOWNLOAD CTA ===================== */
.download__inner {
  text-align: center;
  background: linear-gradient(160deg, rgba(189,90,244,.18), rgba(250,107,158,.12)), var(--surface);
  border: 1px solid rgba(250,107,158,.32);
  border-radius: var(--radius-lg);
  padding: 64px 28px;
  box-shadow: var(--shadow-glow);
}
.download__title { font-size: clamp(1.8rem, 4vw, 2.6rem); letter-spacing: -0.025em; margin: 0 0 12px; font-weight: 800; }
.download__sub { color: var(--text-dim); margin: 0 0 28px; font-size: 1.08rem; }
.download .hero__req { margin-top: 16px; }

/* ===================== FAQ ===================== */
.faq { display: grid; gap: 12px; }
.faq__item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 4px 22px;
  transition: border-color .25s ease;
}
.faq__item[open] { border-color: var(--border-strong); }
.faq__item summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 0;
  font-weight: 600;
  font-size: 1.05rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content: "+";
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--pink);
  transition: transform .25s ease;
  line-height: 1;
}
.faq__item[open] summary::after { transform: rotate(45deg); }
.faq__item p { margin: 0 0 18px; color: var(--text-dim); font-size: 15px; }

/* ===================== FOOTER ===================== */
.footer {
  border-top: 1px solid var(--border);
  padding: 56px 0 36px;
  background: var(--bg-alt);
}
.footer__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
}
.footer__tag { margin: 14px 0 0; color: var(--text-dim); font-size: 15px; max-width: 320px; }
.footer__links { display: flex; flex-wrap: wrap; gap: 14px 28px; font-size: 15px; color: var(--text-dim); }
.footer__links a:hover { color: var(--text); }
.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: space-between;
  padding-top: 24px;
  color: var(--text-faint);
  font-size: 13px;
}
.footer__bottom p { margin: 0; }

/* ===================== CSS fallback equalizer animation ===================== */
/* Used only if JS is disabled; app.js takes over otherwise. */
.no-js .eq__bars rect { animation: eqbounce 1.1s ease-in-out infinite alternate; }
@keyframes eqbounce {
  from { transform: scaleY(.3); }
  to { transform: scaleY(1); }
}
@media (prefers-reduced-motion: reduce) {
  .sparkle { animation: none; }
}