/*
Theme Name: Zeta AI
Theme URI: https://zeta-chat.com/
Author: Zeta AI Studio
Description: Zeta AI — premium landing theme for AI girlfriend chat experiences.
Version: 1.4.2
License: GNU General Public License v2 or later
Text Domain: zeta-ai
*/

:root {
  --ink: #07060d;
  --ink-2: #0d0b17;
  --ink-3: #141024;
  --line: rgba(255, 255, 255, .09);
  --text: #ece9f5;
  --muted: #a49fbd;
  --pink: #ff3d8b;
  --violet: #8b5cff;
  --cyan: #23e0ff;
  --gold: #ffd479;
  --grad: linear-gradient(120deg, #ff3d8b 0%, #8b5cff 48%, #23e0ff 100%);
  --grad-soft: linear-gradient(120deg, rgba(255, 61, 139, .18), rgba(139, 92, 255, .16), rgba(35, 224, 255, .14));
  --radius: 22px;
  --shadow: 0 30px 80px -30px rgba(139, 92, 255, .55);
  --wrap: 1200px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font-family: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.72;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

h1, h2 {
  font-family: "Sora", system-ui, sans-serif;
  line-height: 1.06;
  letter-spacing: -.03em;
  margin: 0 0 18px;
  font-weight: 700;
}

h1 { font-size: clamp(2.5rem, 6.4vw, 5rem); }
h2 { font-size: clamp(1.85rem, 3.6vw, 3rem); }

p { margin: 0 0 18px; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 22px; }
.section { position: relative; padding: clamp(70px, 9vw, 130px) 0; }
.section--tight { padding: clamp(52px, 6vw, 90px) 0; }
.center { text-align: center; }
.lead { font-size: clamp(1.02rem, 1.45vw, 1.22rem); color: var(--muted); max-width: 720px; }
.center .lead { margin-left: auto; margin-right: auto; }

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

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: .74rem;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .035);
  padding: 8px 16px;
  border-radius: 999px;
  margin-bottom: 22px;
  backdrop-filter: blur(10px);
}
.eyebrow::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--pink);
  box-shadow: 0 0 14px 3px rgba(255, 61, 139, .9);
  animation: pulse 2.4s infinite;
}
@keyframes pulse { 50% { opacity: .35; transform: scale(.7); } }

/* ---------- aurora background ---------- */
.aurora { position: fixed; inset: 0; z-index: -2; overflow: hidden; pointer-events: none; }
.aurora i {
  position: absolute;
  width: 60vw; height: 60vw;
  border-radius: 50%;
  filter: blur(110px);
  opacity: .5;
  animation: drift 26s ease-in-out infinite alternate;
}
.aurora i:nth-child(1) { background: #ff3d8b; top: -18vw; left: -12vw; }
.aurora i:nth-child(2) { background: #8b5cff; top: 24vw; right: -18vw; animation-duration: 32s; }
.aurora i:nth-child(3) { background: #23e0ff; bottom: -22vw; left: 18vw; animation-duration: 38s; opacity: .32; }
@keyframes drift { to { transform: translate3d(6vw, -8vw, 0) scale(1.18); } }

.grid-lines {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 74px 74px;
  mask-image: radial-gradient(circle at 50% 20%, #000 10%, transparent 78%);
  opacity: .5;
}

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 60;
  backdrop-filter: blur(18px);
  background: rgba(7, 6, 13, .62);
  border-bottom: 1px solid var(--line);
  transition: background .3s;
}
.site-header.is-stuck { background: rgba(7, 6, 13, .92); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 74px; gap: 18px; }
.brand { display: flex; align-items: center; gap: 11px; font-family: "Sora", sans-serif; font-weight: 700; font-size: 1.18rem; letter-spacing: -.02em; }
.brand-mark {
  width: 36px; height: 36px; border-radius: 11px;
  background: var(--grad);
  display: grid; place-items: center;
  font-size: 1.05rem; color: #0b0716;
  box-shadow: 0 10px 26px -8px rgba(255, 61, 139, .8);
}
.nav-menu { display: flex; align-items: center; gap: 26px; list-style: none; margin: 0; padding: 0; font-size: .93rem; color: var(--muted); font-weight: 600; }
.nav-menu a { transition: color .2s; }
.nav-menu a:hover { color: #fff; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font-family: "Sora", sans-serif;
  font-weight: 700; font-size: .95rem;
  padding: 15px 30px;
  border: 0; border-radius: 999px;
  cursor: pointer;
  position: relative;
  transition: transform .25s cubic-bezier(.2, .9, .3, 1.3), box-shadow .25s, filter .25s;
}
.btn--primary {
  background: var(--grad);
  color: #0a0613;
  box-shadow: 0 18px 44px -16px rgba(255, 61, 139, .85);
}
.btn--primary:hover { transform: translateY(-3px) scale(1.03); filter: brightness(1.08); }
.btn--ghost { border: 1px solid var(--line); background: rgba(255, 255, 255, .04); color: var(--text); }
.btn--ghost:hover { transform: translateY(-3px); border-color: rgba(255, 255, 255, .3); }
.btn--sm { padding: 11px 22px; font-size: .87rem; }
.btn--lg { padding: 19px 44px; font-size: 1.06rem; }
.btn--block { width: 100%; }
.btn-row { display: flex; flex-wrap: wrap; gap: 14px; }
.center .btn-row { justify-content: center; }

.nav-toggle { display: none; background: none; border: 1px solid var(--line); color: #fff; border-radius: 12px; padding: 9px 12px; font-size: 1.1rem; }

/* ---------- hero ---------- */
.hero { padding: clamp(64px, 8vw, 110px) 0 clamp(60px, 7vw, 100px); position: relative; }
.hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 54px; align-items: center; }
.hero h1 span { display: block; }
.hero .lead { max-width: 560px; }
.hero-stats { display: flex; flex-wrap: wrap; gap: 32px; margin-top: 38px; }
.hero-stats div strong { display: block; font-family: "Sora", sans-serif; font-size: 1.7rem; letter-spacing: -.03em; }
.hero-stats div span { font-size: .82rem; color: var(--muted); text-transform: uppercase; letter-spacing: .13em; }

.hero-art { position: relative; }
.hero-card {
  position: relative;
  border-radius: 30px;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  transform: perspective(1200px) rotateY(-7deg) rotateX(3deg);
  animation: float 7s ease-in-out infinite alternate;
}
.hero-card img { aspect-ratio: 4 / 5; object-fit: cover; }
.hero-card::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(7, 6, 13, .92), transparent 58%);
}
@keyframes float { to { transform: perspective(1200px) rotateY(-3deg) rotateX(1deg) translateY(-16px); } }

.hero-bubble {
  position: absolute; z-index: 3;
  background: rgba(20, 16, 36, .82);
  border: 1px solid var(--line);
  backdrop-filter: blur(14px);
  padding: 13px 18px;
  border-radius: 18px;
  font-size: .9rem;
  max-width: 250px;
  box-shadow: 0 20px 40px -22px #000;
  animation: float 5.5s ease-in-out infinite alternate;
}
.hero-bubble small { display: block; color: var(--pink); font-weight: 700; letter-spacing: .1em; text-transform: uppercase; font-size: .66rem; margin-bottom: 3px; }
.hero-bubble--1 { top: 12%; left: -34px; }
.hero-bubble--2 { bottom: 16%; right: -26px; animation-delay: 1.4s; }

/* ---------- marquee ---------- */
.marquee { border-block: 1px solid var(--line); background: rgba(255, 255, 255, .02); padding: 16px 0; overflow: hidden; }
.marquee-track { display: flex; gap: 46px; width: max-content; animation: slide 28s linear infinite; }
.marquee-track span { font-family: "Sora", sans-serif; font-weight: 700; font-size: 1rem; color: var(--muted); letter-spacing: .04em; white-space: nowrap; }
.marquee-track span b { color: var(--pink); }
@keyframes slide { to { transform: translateX(-50%); } }

/* ---------- cards ---------- */
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  position: relative;
  background: linear-gradient(160deg, rgba(255, 255, 255, .055), rgba(255, 255, 255, .015));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
  transition: transform .35s cubic-bezier(.2, .9, .3, 1.2), border-color .35s, box-shadow .35s;
  overflow: hidden;
}
.card::before {
  content: ""; position: absolute; inset: 0;
  background: var(--grad-soft);
  opacity: 0; transition: opacity .35s;
}
.card:hover { transform: translateY(-8px); border-color: rgba(255, 255, 255, .26); box-shadow: var(--shadow); }
.card:hover::before { opacity: 1; }
.card > * { position: relative; }
.card h2 { font-size: 1.24rem; margin-bottom: 10px; letter-spacing: -.02em; }
.card p { color: var(--muted); margin: 0; font-size: .97rem; }
.card-ico {
  width: 50px; height: 50px; border-radius: 15px;
  display: grid; place-items: center;
  font-size: 1.35rem;
  background: var(--grad);
  color: #0b0716;
  margin-bottom: 18px;
  box-shadow: 0 12px 28px -12px rgba(139, 92, 255, .9);
}
.card-num { font-family: "Sora", sans-serif; font-size: 2.3rem; letter-spacing: -.04em; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; margin-bottom: 8px; }

/* ---------- companions ---------- */
.girl {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  transition: transform .45s cubic-bezier(.2, .9, .3, 1.2), box-shadow .45s;
}
.girl img { aspect-ratio: 4 / 5; object-fit: cover; transition: transform .8s ease; }
.girl:hover { transform: translateY(-10px); box-shadow: var(--shadow); }
.girl:hover img { transform: scale(1.07); }
.girl-body {
  position: absolute; inset: auto 0 0 0;
  padding: 60px 20px 20px;
  background: linear-gradient(to top, rgba(5, 4, 10, .99) 0%, rgba(5, 4, 10, .94) 45%, rgba(5, 4, 10, .72) 72%, transparent 100%);
}
.girl-body h2 { font-size: 1.2rem; margin-bottom: 4px; text-shadow: 0 2px 12px rgba(0, 0, 0, .8); }
.girl-body p { font-size: .88rem; color: #d8d4e6; margin: 0 0 14px; text-shadow: 0 2px 10px rgba(0, 0, 0, .85); }
.girl-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 14px; }
.girl-tags i {
  font-style: normal; font-size: .7rem; letter-spacing: .1em; text-transform: uppercase;
  padding: 5px 11px; border-radius: 999px;
  border: 1px solid var(--line); background: rgba(255, 255, 255, .07); color: var(--text);
}
.girl-live {
  position: absolute; top: 14px; left: 14px; z-index: 2;
  display: inline-flex; align-items: center; gap: 7px;
  font-size: .68rem; font-weight: 800; letter-spacing: .15em; text-transform: uppercase;
  background: rgba(7, 6, 13, .7); border: 1px solid var(--line);
  padding: 6px 12px; border-radius: 999px; backdrop-filter: blur(8px);
}
.girl-live::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: #34e39b; box-shadow: 0 0 12px 3px rgba(52, 227, 155, .85); animation: pulse 1.8s infinite; }

/* ---------- chat demo ---------- */
.chat-shell {
  border: 1px solid var(--line);
  border-radius: 26px;
  background: rgba(13, 11, 23, .8);
  padding: 22px;
  box-shadow: var(--shadow);
  max-width: 470px;
}
.chat-head { display: flex; align-items: center; gap: 13px; padding-bottom: 16px; border-bottom: 1px solid var(--line); margin-bottom: 18px; }
.chat-head img { width: 46px; height: 46px; border-radius: 50%; object-fit: cover; }
.chat-head strong { font-family: "Sora", sans-serif; font-size: 1rem; display: block; }
.chat-head small { color: #34e39b; font-size: .78rem; }
.bubble { padding: 12px 17px; border-radius: 18px; margin-bottom: 12px; max-width: 82%; font-size: .96rem; }
.bubble--her { background: rgba(255, 255, 255, .07); border: 1px solid var(--line); border-bottom-left-radius: 6px; }
.bubble--you { background: var(--grad); color: #0a0613; margin-left: auto; border-bottom-right-radius: 6px; font-weight: 600; }
.typing { display: inline-flex; gap: 5px; padding: 14px 18px; border-radius: 18px; background: rgba(255, 255, 255, .07); border: 1px solid var(--line); }
.typing i { width: 7px; height: 7px; border-radius: 50%; background: var(--muted); animation: bounce 1.3s infinite; }
.typing i:nth-child(2) { animation-delay: .18s; }
.typing i:nth-child(3) { animation-delay: .36s; }
@keyframes bounce { 0%, 100% { transform: translateY(0); opacity: .45; } 50% { transform: translateY(-6px); opacity: 1; } }

/* ---------- split ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 54px; align-items: center; }
.split-media { border-radius: 26px; overflow: hidden; border: 1px solid var(--line); box-shadow: var(--shadow); }
.split-media img { aspect-ratio: 4 / 5; object-fit: cover; }

.ticks { list-style: none; margin: 24px 0 0; padding: 0; }
.ticks li { position: relative; padding-left: 34px; margin-bottom: 13px; color: var(--muted); }
.ticks li::before {
  content: "✦"; position: absolute; left: 0; top: -1px;
  width: 22px; height: 22px; border-radius: 50%;
  display: grid; place-items: center; font-size: .7rem;
  background: var(--grad); color: #0a0613;
}
.ticks li b { color: var(--text); }

/* ---------- pricing ---------- */
.plan { display: flex; flex-direction: column; }
.plan--hot { border-color: rgba(255, 61, 139, .55); box-shadow: 0 30px 70px -34px rgba(255, 61, 139, .8); }
.plan-badge { position: absolute; top: 18px; right: 18px; font-size: .64rem; font-weight: 800; letter-spacing: .15em; text-transform: uppercase; background: var(--grad); color: #0a0613; padding: 5px 11px; border-radius: 999px; }
.plan-price { font-family: "Sora", sans-serif; font-size: 2.7rem; letter-spacing: -.04em; margin: 6px 0 2px; }
.plan-price sub { font-size: .82rem; color: var(--muted); font-family: inherit; letter-spacing: 0; }
.plan .ticks { margin: 18px 0 26px; }
.plan .ticks li { font-size: .93rem; margin-bottom: 10px; }
.plan .btn { margin-top: auto; }

/* ---------- steps ---------- */
.steps { counter-reset: s; }
.step { display: flex; gap: 20px; align-items: flex-start; }
.step-n {
  flex: 0 0 auto; width: 46px; height: 46px; border-radius: 14px;
  display: grid; place-items: center; font-family: "Sora", sans-serif; font-weight: 700;
  background: rgba(255, 255, 255, .05); border: 1px solid var(--line);
}

/* ---------- quotes ---------- */
.quote { font-size: 1rem; }
.quote p { color: var(--text); font-style: italic; }
.quote-who { display: flex; align-items: center; gap: 12px; margin-top: 16px; }
.quote-who span { width: 38px; height: 38px; border-radius: 50%; background: var(--grad); display: grid; place-items: center; color: #0a0613; font-weight: 700; font-family: "Sora", sans-serif; }
.quote-who small { display: block; color: var(--muted); font-size: .8rem; }
.stars { color: var(--gold); letter-spacing: .18em; font-size: .9rem; margin-bottom: 12px; }

/* ---------- prose / article ---------- */
.prose { max-width: 820px; }
.prose h2 { margin-top: 46px; }
.prose p { color: #cec9e2; }
.prose ol, .prose ul { color: #cec9e2; padding-left: 22px; }
.prose li { margin-bottom: 10px; }
.story { display: grid; grid-template-columns: 1fr 1fr; gap: 46px; }
.story p { color: #cdc8e0; }
.story p:first-of-type::first-letter {
  float: left; font-family: "Sora", sans-serif; font-size: 3.4rem; line-height: .86;
  padding: 6px 12px 0 0; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* ---------- faq ---------- */
.faq { max-width: 860px; margin: 0 auto; }
.faq details {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, .03);
  padding: 18px 22px;
  margin-bottom: 12px;
  transition: border-color .3s, background .3s;
}
.faq details[open] { border-color: rgba(255, 61, 139, .45); background: rgba(255, 61, 139, .05); }
.faq summary {
  cursor: pointer; font-family: "Sora", sans-serif; font-weight: 600; font-size: 1.02rem;
  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: "+"; font-size: 1.5rem; color: var(--pink); line-height: 1; transition: transform .3s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq p { color: var(--muted); margin: 14px 0 0; font-size: .97rem; }

/* ---------- final cta ---------- */
.cta-panel {
  position: relative; overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 34px;
  padding: clamp(40px, 6vw, 80px);
  text-align: center;
  background: radial-gradient(circle at 30% 0%, rgba(255, 61, 139, .35), transparent 60%), radial-gradient(circle at 80% 100%, rgba(35, 224, 255, .28), transparent 58%), rgba(13, 11, 23, .9);
  box-shadow: var(--shadow);
}
.cta-panel .lead { margin: 0 auto 30px; }

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--line); background: rgba(7, 6, 13, .85); padding: 60px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 34px; }
.site-footer p, .site-footer li { color: var(--muted); font-size: .93rem; }
.site-footer strong { font-family: "Sora", sans-serif; display: block; margin-bottom: 14px; font-size: .95rem; color: var(--text); }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: 9px; }
.site-footer a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid var(--line); margin-top: 40px; padding-top: 22px; display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; font-size: .86rem; color: var(--muted); }

.crumbs { font-size: .85rem; color: var(--muted); margin-bottom: 22px; }
.crumbs a:hover { color: #fff; }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s ease, transform .8s cubic-bezier(.2, .9, .3, 1); }
.reveal.in { opacity: 1; transform: none; }

.to-top {
  position: fixed; right: 20px; bottom: 20px; z-index: 70;
  width: 46px; height: 46px; border-radius: 50%;
  border: 1px solid var(--line); background: rgba(13, 11, 23, .9); color: #fff;
  display: grid; place-items: center; cursor: pointer;
  opacity: 0; pointer-events: none; transition: opacity .3s, transform .3s;
}
.to-top.show { opacity: 1; pointer-events: auto; }
.to-top:hover { transform: translateY(-4px); }

.age {
  position: fixed; inset: auto 0 0 0; z-index: 80;
  background: rgba(7, 6, 13, .95); border-top: 1px solid var(--line);
  padding: 14px 0; backdrop-filter: blur(12px);
}
.age .wrap { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; justify-content: space-between; }
.age p { margin: 0; font-size: .88rem; color: var(--muted); }

@media (max-width: 980px) {
  .hero-grid, .split, .story, .footer-grid { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .hero-card { transform: none; }
  .nav-menu {
    position: absolute; top: 74px; left: 0; right: 0;
    flex-direction: column; align-items: flex-start; gap: 4px;
    background: rgba(7, 6, 13, .98); border-bottom: 1px solid var(--line);
    padding: 18px 22px; display: none;
  }
  .nav-menu.open { display: flex; }
  .nav-toggle { display: block; }
  .split-media { order: -1; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .hero-bubble { display: none; }
  .chat-shell { max-width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}