*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0a0a0b;
  --surface: #131316;
  --elevated: #1c1c21;
  --border: rgba(255,255,255,.06);
  --text: #e8e8ea;
  --muted: #8a8a94;
  --dim: #5a5a64;
  --accent: #e2c044;
  --accent-fg: #111;
  --green: #3ddc84;
  --red: #e84057;
  --pink: #d946a8;
  --r: 12px;
  --r-lg: 16px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

html { scroll-behavior: smooth; }
body {
  font-family: "Geist", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  font-size: 15px;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
b, strong { font-weight: 600; }

/* --- Layout --- */
.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* --- Nav --- */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; padding: 14px 0; transition: background .3s, border .3s; }
.nav.scrolled { background: rgba(10,10,11,.9); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); }
.nav-inner { max-width: 1080px; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; }
.logo { font-size: 18px; font-weight: 800; letter-spacing: -0.04em; color: var(--text); }
.logo::first-letter { color: var(--accent); }
.nav-links { display: none; margin-left: auto; gap: 28px; font-size: 13px; color: var(--muted); font-weight: 500; }
.nav-links a { transition: color .2s; }
.nav-links a:hover { color: var(--text); }
@media(min-width:768px) { .nav-links { display: flex; } }
.nav-cta { margin-left: 28px; font-size: 13px; font-weight: 600; background: var(--accent); color: var(--accent-fg); padding: 7px 16px; border-radius: 8px; display: none; transition: transform .15s var(--ease); }
.nav-cta:hover { transform: translateY(-1px); }
@media(min-width:768px) { .nav-cta { display: inline-block; } }
.nav-burger { display: flex; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; margin-left: auto; }
.nav-burger span { width: 18px; height: 1.5px; background: var(--text); border-radius: 1px; transition: .25s var(--ease); }
.nav-burger.active span:first-child { transform: translateY(6.5px) rotate(45deg); }
.nav-burger.active span:last-child { transform: translateY(-6.5px) rotate(-45deg); }
@media(min-width:768px) { .nav-burger { display: none; } }
.mobile-menu { display: none; flex-direction: column; padding: 16px 24px 24px; background: rgba(10,10,11,.97); backdrop-filter: blur(12px); }
.mobile-menu.open { display: flex; }
.mobile-menu a { padding: 14px 0; font-size: 15px; color: var(--muted); border-bottom: 1px solid var(--border); }
.mobile-cta { color: var(--accent) !important; font-weight: 600; border: none !important; margin-top: 8px; }
@media(min-width:768px) { .mobile-menu { display: none !important; } }

/* --- Hero --- */
.hero { min-height: 100dvh; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 120px 24px 80px; max-width: 1080px; margin: 0 auto; gap: 48px; }

.hero-tag { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: .08em; color: var(--accent); margin-bottom: 16px; font-family: "Geist Mono", monospace; }
.hero-h1 { font-size: clamp(36px, 6vw, 56px); font-weight: 800; line-height: 1.05; letter-spacing: -0.035em; margin-bottom: 16px; }
.hero-p { font-size: 16px; color: var(--muted); line-height: 1.6; max-width: 440px; margin-bottom: 28px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 20px; }
.hero-content { display: flex; flex-direction: column; align-items: center; }
.hero-p { text-align: center; margin-left: auto; margin-right: auto; }
.hero-actions { justify-content: center; }
.hero-footnote { text-align: center; }

.cta-primary { display: inline-flex; align-items: center; height: 44px; padding: 0 22px; background: var(--accent); color: var(--accent-fg); font-size: 14px; font-weight: 600; border-radius: 8px; border: none; cursor: pointer; transition: transform .15s var(--ease), opacity .15s; }
.cta-primary:hover { transform: translateY(-1px); opacity: .9; }
.cta-primary:active { transform: scale(.98); }
.cta-secondary { display: inline-flex; align-items: center; height: 44px; padding: 0 22px; background: var(--elevated); color: var(--muted); font-size: 14px; font-weight: 500; border-radius: 8px; transition: color .2s; }
.cta-secondary:hover { color: var(--text); }

/* --- Device --- */
.hero-visual { display: flex; justify-content: center; }
.device { width: 260px; height: 520px; background: var(--surface); border-radius: 32px; border: 1.5px solid rgba(255,255,255,.08); box-shadow: 0 32px 80px -20px rgba(0,0,0,.6); overflow: hidden; position: relative; }
.device-screen { position: absolute; inset: 6px; border-radius: 26px; overflow: hidden; background: var(--bg); display: flex; flex-direction: column; }

.d-bar { display: flex; justify-content: space-between; padding: 8px 14px 4px; font-size: 9px; color: var(--dim); font-family: "Geist Mono", monospace; }
.d-nav { display: flex; align-items: center; gap: 10px; padding: 8px 14px; border-bottom: 1px solid var(--border); }
.d-back { font-size: 16px; color: var(--muted); }
.d-contact { display: flex; align-items: center; gap: 8px; }
.d-av { width: 28px; height: 28px; border-radius: 8px; background: #6b5ce7; display: flex; align-items: center; justify-content: center; font-size: 11px; font-weight: 700; color: #fff; }
.d-contact b { font-size: 12px; display: block; }
.d-contact span { font-size: 9px; color: var(--dim); }

.d-chat { flex: 1; padding: 12px; display: flex; flex-direction: column; gap: 8px; overflow: hidden; }
.d-msg { max-width: 80%; }
.d-msg--in { align-self: flex-start; }
.d-msg--out { align-self: flex-end; }
.d-msg p { font-size: 11px; line-height: 1.45; padding: 8px 11px; border-radius: 12px; }
.d-msg--in p { background: var(--elevated); border-bottom-left-radius: 4px; color: var(--text); }
.d-msg--out p { background: rgba(226,192,68,.1); color: var(--accent); border-bottom-right-radius: 4px; }

.d-fix { align-self: flex-end; max-width: 85%; background: var(--elevated); border-left: 2px solid var(--pink); border-radius: 4px 10px 10px 4px; padding: 8px 10px; }
.d-fix-head { font-size: 9px; font-weight: 700; color: var(--pink); text-transform: uppercase; letter-spacing: .05em; margin-bottom: 4px; display: flex; align-items: center; gap: 5px; }
.d-fix-dot { width: 5px; height: 5px; border-radius: 50%; background: var(--pink); }
.d-fix p { font-size: 11px; margin-bottom: 3px; }
.d-fix s { color: var(--muted); }
.d-fix b { color: var(--green); }
.d-fix-note { font-size: 9px; color: var(--dim); line-height: 1.4; display: block; }

.d-input { display: flex; align-items: center; gap: 8px; padding: 10px 14px; border-top: 1px solid var(--border); }
.d-input span { flex: 1; font-size: 11px; color: var(--dim); background: var(--elevated); padding: 6px 10px; border-radius: 14px; }
.d-send { width: 24px; height: 24px; background: var(--accent); border-radius: 50%; flex-shrink: 0; }

/* --- Logos --- */
.logos { border-bottom: 1px solid var(--border); padding: 20px 0; }
.logos-inner { max-width: 1080px; margin: 0 auto; padding: 0 24px; display: flex; justify-content: center; flex-wrap: wrap; gap: 28px; }
.logos-inner span { font-size: 12px; font-weight: 600; color: var(--dim); opacity: .5; letter-spacing: .02em; }

/* --- Pain --- */
.pain { padding: 80px 0; text-align: center; }
.pain-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; max-width: 640px; margin: 0 auto; text-align: left; }
@media(max-width:640px) { .pain-row { grid-template-columns: 1fr; } }
.pain-block { padding: 28px; border-radius: var(--r-lg); }
.pain-block h3 { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; margin-bottom: 14px; }
.pain-block ul { display: flex; flex-direction: column; gap: 10px; }
.pain-block li { font-size: 14px; line-height: 1.5; color: var(--muted); }
.pain-block--bad { background: rgba(232,64,87,.03); border: 1px solid rgba(232,64,87,.08); }
.pain-block--bad h3 { color: var(--red); }
.pain-block--good { background: rgba(61,220,132,.03); border: 1px solid rgba(61,220,132,.08); }
.pain-block--good h3 { color: var(--green); }
.pain-block--good li { color: var(--text); }

/* --- Section headers --- */
.section-header { margin-bottom: 32px; text-align: center; }
.section-header h2 { font-size: clamp(22px, 3vw, 28px); font-weight: 700; letter-spacing: -0.025em; margin-bottom: 6px; }
.section-header p { font-size: 15px; color: var(--muted); }

/* --- Compare --- */
.compare { padding: 80px 0; background: var(--surface); text-align: center; }
.compare-grid { display: flex; flex-direction: column; max-width: 640px; margin: 0 auto; text-align: left; }
.compare-item { display: grid; grid-template-columns: 100px 1fr 1fr; padding: 14px 0; border-bottom: 1px solid var(--border); font-size: 13px; }
.compare-item:last-child { border: none; }
.compare-label { font-weight: 600; color: var(--text); font-size: 12px; }
.compare-them { color: var(--dim); }
.compare-us { color: var(--text); font-weight: 500; }
@media(max-width:640px) {
  .compare-item { grid-template-columns: 1fr; gap: 4px; padding: 16px 0; }
  .compare-label { font-size: 10px; text-transform: uppercase; letter-spacing: .04em; color: var(--accent); }
}

/* --- Persona --- */
.persona { padding: 80px 0; text-align: center; }
.persona-list { display: flex; flex-direction: column; gap: 0; max-width: 560px; margin: 0 auto; text-align: left; }
.persona-row { display: flex; align-items: flex-start; gap: 16px; padding: 20px 0; border-bottom: 1px solid var(--border); }
.persona-row:last-child { border: none; }
.persona-num { font-size: 12px; font-weight: 700; color: var(--accent); font-family: "Geist Mono", monospace; padding-top: 2px; flex-shrink: 0; }
.persona-row strong { font-size: 15px; display: block; margin-bottom: 2px; }
.persona-row p { font-size: 13px; color: var(--muted); line-height: 1.5; }

/* --- How --- */
.how { padding: 80px 0; background: var(--surface); text-align: center; }
.how-list { display: flex; flex-direction: column; gap: 0; max-width: 560px; margin: 0 auto; text-align: left; }
.how-item { display: flex; align-items: flex-start; gap: 16px; padding: 20px 0; border-bottom: 1px solid var(--border); }
.how-item:last-child { border: none; }
.how-num { font-size: 12px; font-weight: 700; color: var(--accent); font-family: "Geist Mono", monospace; padding-top: 2px; flex-shrink: 0; }
.how-item strong { font-size: 15px; display: block; margin-bottom: 2px; }
.how-item p { font-size: 13px; color: var(--muted); line-height: 1.5; }

/* --- Features --- */
.features { padding: 80px 0; text-align: center; }
.feat-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 12px; max-width: 720px; margin: 0 auto; text-align: left; }
@media(max-width:768px) { .feat-grid { grid-template-columns: 1fr; } }
.feat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-lg); padding: 24px; transition: transform .2s var(--ease); }
.feat:hover { transform: translateY(-2px); }
.feat--large { grid-row: span 2; display: flex; flex-direction: column; justify-content: center; }
.feat strong { font-size: 14px; display: block; margin-bottom: 4px; }
.feat p { font-size: 13px; color: var(--muted); line-height: 1.5; }
.feat-demo { margin-top: 16px; font-size: 13px; font-family: "Geist Mono", monospace; padding: 10px 14px; background: var(--bg); border-radius: 8px; border: 1px solid var(--border); display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.feat-wrong { color: var(--red); text-decoration: line-through; text-decoration-color: rgba(232,64,87,.4); }
.feat-arrow { color: var(--dim); }
.feat-right { color: var(--green); font-weight: 600; }

/* --- Early --- */
.early { padding: 80px 0; background: var(--surface); text-align: center; }
.early-inner { max-width: 560px; margin: 0 auto; }
.early-inner h2 { font-size: clamp(20px, 2.5vw, 24px); font-weight: 700; letter-spacing: -0.02em; margin-bottom: 24px; }
.early-list { display: flex; flex-direction: column; gap: 12px; margin-bottom: 28px; align-items: center; }
.early-item { display: flex; align-items: center; gap: 12px; font-size: 14px; }
.early-item span { font-size: 11px; font-weight: 700; color: var(--accent); font-family: "Geist Mono", monospace; width: 24px; }

/* --- FAQ --- */
.faq { padding: 80px 0; text-align: center; }
.faq-list { max-width: 560px; margin: 0 auto; text-align: left; }
.faq-list details { border-bottom: 1px solid var(--border); }
.faq-list summary { padding: 16px 0; font-size: 14px; font-weight: 600; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; transition: color .2s; }
.faq-list summary:hover { color: var(--accent); }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; font-size: 16px; color: var(--dim); font-weight: 400; transition: transform .2s var(--ease); }
.faq-list details[open] summary::after { transform: rotate(45deg); }
.faq-list p { padding: 0 0 16px; font-size: 13px; color: var(--muted); line-height: 1.6; }

/* --- Waitlist --- */
.waitlist { padding: 80px 0; background: var(--surface); text-align: center; }
.waitlist-split { display: grid; grid-template-columns: 1fr; gap: 32px; max-width: 480px; margin: 0 auto; }
.waitlist-left h2 { font-size: clamp(24px, 3vw, 32px); font-weight: 800; letter-spacing: -0.03em; margin-bottom: 16px; }
.waitlist-left ul { display: flex; flex-direction: column; gap: 8px; align-items: center; }
.waitlist-left li { font-size: 14px; color: var(--muted); padding-left: 16px; position: relative; }
.waitlist-left li::before { content: ""; position: absolute; left: 0; top: 8px; width: 6px; height: 6px; border-radius: 50%; background: var(--green); }

.waitlist-right form { display: flex; flex-direction: column; gap: 10px; }
.waitlist-right input { width: 100%; background: var(--elevated); border: 1px solid var(--border); border-radius: 10px; padding: 13px 16px; font: 500 14px "Geist", sans-serif; color: var(--text); outline: none; transition: border-color .2s, box-shadow .2s; }
.waitlist-right input::placeholder { color: var(--dim); }
.waitlist-right input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(226,192,68,.1); }
.waitlist-right button { width: 100%; height: 44px; background: var(--accent); color: var(--accent-fg); font: 600 14px "Geist", sans-serif; border: none; border-radius: 10px; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: transform .15s var(--ease); }
.waitlist-right button:hover { transform: translateY(-1px); }
.waitlist-right button:active { transform: scale(.98); }
.waitlist-right button:disabled { opacity: .6; cursor: not-allowed; transform: none; }
.form-note { font-size: 11px; color: var(--dim); }
.form-error { font-size: 12px; color: var(--red); }
.waitlist-success { padding: 24px; background: var(--elevated); border-radius: var(--r-lg); }
.waitlist-success strong { display: block; margin-bottom: 4px; }
.waitlist-success p { font-size: 13px; color: var(--muted); }

/* --- Footer --- */
.footer { padding: 24px 0; border-top: 1px solid var(--border); text-align: center; }
.footer-row { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.footer-links { display: flex; gap: 20px; font-size: 12px; color: var(--dim); }
.footer-links a:hover { color: var(--muted); }
.footer-copy { font-size: 11px; color: var(--dim); opacity: .5; }

/* --- Animations --- */
.fade-up { opacity: 0; transform: translateY(14px); transition: opacity .5s var(--ease), transform .5s var(--ease); }
.fade-up.visible { opacity: 1; transform: none; }
.spinner { animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* --- Mobile --- */
@media(max-width:640px) {
  .hero { padding: 100px 20px 60px; }
  .hero-actions { flex-direction: column; }
  .cta-primary, .cta-secondary { width: 100%; justify-content: center; }
  .device { width: 220px; height: 440px; }
}