:root {
  --bg: #0a0b1a;
  --bg-2: #11132a;
  --card: rgba(255, 255, 255, 0.04);
  --card-border: rgba(255, 255, 255, 0.09);
  --text: #f3f5ff;
  --muted: #9aa0c0;
  --accent: #6c8cff;
  --accent-2: #b16cff;
  --green: #34d27b;
  --radius: 20px;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  --font: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, Inter, system-ui, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(1100px 600px at 80% -10%, rgba(108, 140, 255, 0.22), transparent 60%),
    radial-gradient(900px 500px at 0% 10%, rgba(177, 108, 255, 0.18), transparent 55%),
    var(--bg);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
}

.container { width: min(1120px, 92vw); margin: 0 auto; }

/* ---------- Header ---------- */
header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(10, 11, 26, 0.6);
  border-bottom: 1px solid var(--card-border);
}
.nav { display: flex; align-items: center; justify-content: space-between; padding: 16px 0; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; letter-spacing: -0.02em; }
.brand .logo {
  width: 34px; height: 34px; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid; place-items: center; font-size: 18px;
}
.nav-links { display: flex; align-items: center; gap: 22px; }
.nav-links a { color: var(--muted); text-decoration: none; font-size: 15px; transition: color .2s; }
.nav-links a:hover { color: var(--text); }
.lang-switch {
  display: inline-flex; border: 1px solid var(--card-border); border-radius: 999px; overflow: hidden;
}
.lang-switch button {
  background: transparent; color: var(--muted); border: 0; padding: 6px 14px; cursor: pointer;
  font-weight: 600; font-size: 13px; transition: all .2s; font-family: var(--font);
}
.lang-switch button.active { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; }
@media (max-width: 640px) { .nav-links .hide-mobile { display: none; } }

/* ---------- Hero ---------- */
.hero { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; padding: 70px 0 40px; }
@media (max-width: 900px) { .hero { grid-template-columns: 1fr; text-align: center; padding: 44px 0 20px; } }
.badge {
  display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--accent);
  background: rgba(108, 140, 255, 0.12); border: 1px solid rgba(108, 140, 255, 0.3);
  padding: 6px 14px; border-radius: 999px; margin-bottom: 22px;
}
.badge::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 10px var(--green); }
h1 {
  font-size: clamp(32px, 5vw, 52px); line-height: 1.05; letter-spacing: -0.03em; font-weight: 800;
  margin-bottom: 18px;
  background: linear-gradient(180deg, #fff, #c8cdf0);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.subtitle { font-size: clamp(16px, 2vw, 19px); color: var(--muted); max-width: 540px; margin-bottom: 30px; }
@media (max-width: 900px) { .subtitle { margin-inline: auto; } }

.btn {
  display: inline-flex; align-items: center; gap: 10px; cursor: pointer;
  font-family: var(--font); font-weight: 700; font-size: 17px;
  border: 0; border-radius: 14px; padding: 16px 30px; text-decoration: none; color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 12px 30px rgba(108, 140, 255, 0.35); transition: transform .15s, box-shadow .2s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 16px 40px rgba(108, 140, 255, 0.5); }
.btn:active { transform: translateY(0); }
.btn.secondary { background: var(--card); border: 1px solid var(--card-border); box-shadow: none; }
.btn-large { font-size: 19px; padding: 18px 38px; }
.cta-hint { display: block; margin-top: 12px; font-size: 13px; color: var(--muted); }

.secure-note {
  margin-top: 26px; display: inline-flex; align-items: flex-start; gap: 10px;
  font-size: 14px; color: var(--muted); max-width: 480px;
}
.secure-note svg { flex: none; margin-top: 2px; }
@media (max-width: 900px) { .secure-note { margin-inline: auto; text-align: left; } }

/* ---------- iPhone mockup ---------- */
.phone-wrap { display: grid; place-items: center; }
.phone {
  position: relative; width: 280px; height: 580px; border-radius: 46px;
  background: #050610; border: 11px solid #1c1f3a;
  box-shadow: var(--shadow), inset 0 0 0 2px rgba(255,255,255,.04);
  overflow: hidden;
}
.phone::before { /* notch */
  content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 120px; height: 26px; background: #1c1f3a; border-radius: 0 0 16px 16px; z-index: 20;
}
.screen { position: absolute; inset: 0; background: linear-gradient(180deg, #1a1c34, #0d0e1f); }

.ios-statusbar { display: flex; justify-content: space-between; padding: 12px 22px 4px; font-size: 12px; color: #fff; font-weight: 600; }

/* generic screen layers stacked, toggled by JS */
.scr { position: absolute; inset: 0; opacity: 0; transition: opacity .5s; padding-top: 34px; }
.scr.active { opacity: 1; }

.app-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px 14px; padding: 24px 22px; }
.app-icon { aspect-ratio: 1; border-radius: 14px; background: linear-gradient(135deg, #2a2d52, #3a3f72); }
.app-icon.safari { background: linear-gradient(135deg, #1f8fff, #0a5bd6); display: grid; place-items: center; font-size: 26px; }
.app-icon.settings { background: linear-gradient(135deg, #8a8f9c, #5b6070); display: grid; place-items: center; font-size: 24px; }

/* dialog / sheet */
.sheet {
  position: absolute; left: 12px; right: 12px; bottom: 14px;
  background: rgba(40,42,66,.96); border: 1px solid rgba(255,255,255,.1);
  border-radius: 18px; padding: 16px; text-align: center; backdrop-filter: blur(8px);
}
.sheet .title { font-size: 14px; font-weight: 700; margin-bottom: 6px; }
.sheet .sub { font-size: 11px; color: var(--muted); margin-bottom: 14px; }
.sheet .row { display: flex; gap: 8px; }
.sheet .pill { flex: 1; padding: 10px; border-radius: 10px; font-size: 13px; font-weight: 600; }
.sheet .pill.primary { background: var(--accent); color: #fff; }
.sheet .pill.ghost { background: rgba(255,255,255,.08); color: var(--text); }

/* settings list */
.settings-list { padding: 14px 16px; }
.set-banner {
  background: rgba(108,140,255,.15); border: 1px solid rgba(108,140,255,.35);
  border-radius: 12px; padding: 12px 14px; margin-bottom: 12px; display: flex; align-items: center; gap: 12px;
}
.set-banner .ic { width: 30px; height: 30px; border-radius: 8px; background: linear-gradient(135deg,var(--accent),var(--accent-2)); display:grid; place-items:center; font-size:15px; }
.set-banner .tx { font-size: 12px; }
.set-banner .tx b { display: block; font-size: 13px; }
.set-row { display: flex; align-items: center; justify-content: space-between; padding: 13px 14px; background: rgba(255,255,255,.04); border-radius: 10px; margin-bottom: 8px; font-size: 13px; }
.set-row .chev { color: var(--muted); }

/* install screen */
.install-head { display: flex; align-items: center; justify-content: space-between; padding: 10px 16px; font-size: 14px; }
.install-head .install-btn { color: var(--accent); font-weight: 700; }
.profile-card { margin: 16px; padding: 16px; background: rgba(255,255,255,.05); border-radius: 14px; text-align: center; }
.profile-card .pic { width: 54px; height: 54px; border-radius: 12px; margin: 0 auto 10px; background: linear-gradient(135deg,var(--accent),var(--accent-2)); display:grid; place-items:center; font-size:26px; }
.profile-card .pname { font-weight: 700; font-size: 15px; }
.profile-card .psign { font-size: 11px; color: var(--green); margin-top: 4px; }

/* result screen (mockup) */
.res-mock { padding: 30px 20px; text-align: center; }
.res-mock .check { width: 64px; height: 64px; border-radius: 50%; background: rgba(52,210,123,.15); border: 2px solid var(--green); display:grid; place-items:center; font-size:30px; margin: 10px auto 16px; }
.res-mock .udid-box { background: rgba(255,255,255,.05); border:1px solid var(--card-border); border-radius:12px; padding:12px; font-family: ui-monospace, monospace; font-size: 10px; word-break: break-all; color: var(--accent); margin-bottom: 10px; }
.res-mock .lbl { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 4px; text-align:left; }
.res-mock .mdl { font-size: 14px; font-weight: 700; text-align:left; }

/* progress dots under phone */
.guide-controls { display: flex; flex-direction: column; align-items: center; gap: 16px; margin-top: 22px; }
.dots { display: flex; gap: 8px; }
.dots span { width: 8px; height: 8px; border-radius: 50%; background: rgba(255,255,255,.2); transition: all .3s; }
.dots span.active { width: 26px; border-radius: 4px; background: linear-gradient(90deg,var(--accent),var(--accent-2)); }
.replay { background: none; border: 0; color: var(--muted); cursor: pointer; font-size: 13px; font-family: var(--font); display:inline-flex; align-items:center; gap:6px; }
.replay:hover { color: var(--text); }

/* ---------- Steps section ---------- */
section { padding: 60px 0; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 44px; }
.section-head h2 { font-size: clamp(26px, 4vw, 38px); letter-spacing: -0.02em; margin-bottom: 12px; }
.section-head p { color: var(--muted); font-size: 17px; }

.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
@media (max-width: 900px) { .steps-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .steps-grid { grid-template-columns: 1fr; } }
.step-card {
  background: var(--card); border: 1px solid var(--card-border); border-radius: var(--radius);
  padding: 24px; position: relative; transition: transform .2s, border-color .2s;
}
.step-card:hover { transform: translateY(-4px); border-color: rgba(108,140,255,.4); }
.step-num {
  width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center;
  font-weight: 800; font-size: 17px; margin-bottom: 16px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff;
}
.step-card h3 { font-size: 17px; margin-bottom: 8px; }
.step-card p { color: var(--muted); font-size: 14px; }

/* ---------- Guide block (animated) on its own ---------- */
.guide-section { background: linear-gradient(180deg, transparent, rgba(108,140,255,.04)); }
.guide-layout { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 50px; align-items: center; }
@media (max-width: 900px) { .guide-layout { grid-template-columns: 1fr; } }
.guide-steps-list { display: flex; flex-direction: column; gap: 10px; }
.gstep {
  display: flex; gap: 16px; padding: 18px; border-radius: 16px; border: 1px solid transparent;
  transition: all .3s; cursor: default;
}
.gstep.active { background: var(--card); border-color: rgba(108,140,255,.4); }
.gstep .gnum {
  flex: none; width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center;
  font-weight: 700; border: 2px solid var(--card-border); color: var(--muted); transition: all .3s;
}
.gstep.active .gnum { background: linear-gradient(135deg,var(--accent),var(--accent-2)); border-color: transparent; color: #fff; }
.gstep .gt { font-weight: 700; font-size: 16px; margin-bottom: 3px; }
.gstep .gd { color: var(--muted); font-size: 14px; }

/* ---------- FAQ ---------- */
.faq-list { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--card); border: 1px solid var(--card-border); border-radius: 16px; overflow: hidden; }
.faq-q { width: 100%; text-align: left; background: none; border: 0; color: var(--text); cursor: pointer;
  font-family: var(--font); font-size: 16px; font-weight: 600; padding: 20px 22px; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.faq-q .ico { transition: transform .25s; color: var(--accent); flex: none; }
.faq-item.open .faq-q .ico { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .3s ease; color: var(--muted); font-size: 15px; padding: 0 22px; }
.faq-item.open .faq-a { max-height: 320px; padding-bottom: 20px; }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--card-border); padding: 40px 0; margin-top: 30px; text-align: center; color: var(--muted); }
footer .brand { justify-content: center; margin-bottom: 14px; }
footer p { font-size: 13px; max-width: 560px; margin: 6px auto 0; }

/* ---------- Warnings ---------- */
.warn-bar {
  display: none; background: rgba(255,180,60,.12); border-bottom: 1px solid rgba(255,180,60,.3);
  color: #ffcf7a; padding: 12px 0; font-size: 14px; text-align: center;
}
.warn-bar.show { display: block; }

/* ---------- Result page ---------- */
.result-wrap { max-width: 560px; margin: 0 auto; padding: 50px 0; }
.result-card { background: var(--card); border: 1px solid var(--card-border); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow); }
.result-icon { width: 72px; height: 72px; border-radius: 50%; background: rgba(52,210,123,.15); border: 2px solid var(--green); display:grid; place-items:center; font-size: 36px; margin: 0 auto 20px; }
.result-card h1 { font-size: 26px; text-align: center; margin-bottom: 6px; }
.result-sub { text-align: center; color: var(--muted); margin-bottom: 26px; font-size: 15px; }
.field { margin-bottom: 14px; }
.field .flabel { font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin-bottom: 6px; }
.field .fvalue { display: flex; align-items: center; gap: 10px; background: rgba(0,0,0,.25); border: 1px solid var(--card-border); border-radius: 12px; padding: 13px 14px; }
.field .fvalue code { font-family: ui-monospace, 'SF Mono', monospace; font-size: 15px; word-break: break-all; flex: 1; color: var(--text); }
.field.highlight .fvalue { border-color: rgba(108,140,255,.5); background: rgba(108,140,255,.08); }
.field.highlight .fvalue code { color: var(--accent); font-weight: 600; }
.copy-btn { flex: none; background: rgba(255,255,255,.08); border: 0; color: var(--text); cursor: pointer; padding: 8px 10px; border-radius: 8px; font-size: 13px; font-family: var(--font); transition: background .2s; }
.copy-btn:hover { background: rgba(255,255,255,.16); }
.copy-btn.ok { background: var(--green); color: #04150b; }
.result-actions { display: flex; flex-direction: column; gap: 12px; margin-top: 24px; }
.remove-note { display: flex; align-items: center; gap: 10px; justify-content: center; margin-top: 22px; font-size: 13px; color: #ffcf7a; }
.back-link { display: block; text-align: center; margin-top: 20px; color: var(--muted); text-decoration: none; font-size: 14px; }
.back-link:hover { color: var(--text); }

/* ---------- Wait overlay ---------- */
.wait-overlay {
  display: none; position: fixed; inset: 0; z-index: 200;
  background: rgba(6, 7, 18, 0.82); backdrop-filter: blur(8px);
  align-items: center; justify-content: center; padding: 22px;
}
.wait-overlay.show { display: flex; }
.wait-card {
  background: var(--bg-2); border: 1px solid var(--card-border); border-radius: 22px;
  padding: 32px 26px; max-width: 420px; width: 100%; text-align: center; box-shadow: var(--shadow);
  animation: fadeUp .35s ease both;
}
.wait-spinner {
  width: 54px; height: 54px; margin: 0 auto 20px; border-radius: 50%;
  border: 4px solid rgba(255,255,255,.12); border-top-color: var(--accent);
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.wait-card h3 { font-size: 21px; margin-bottom: 18px; }
.wait-steps { text-align: left; margin: 0 auto 18px; padding-left: 22px; display: grid; gap: 10px; max-width: 340px; }
.wait-steps li { color: var(--muted); font-size: 14px; line-height: 1.4; }
.wait-steps li::marker { color: var(--accent); font-weight: 700; }
.wait-hint { font-size: 13px; color: var(--accent); margin-bottom: 20px; }
.wait-cancel { background: rgba(255,255,255,.08); border: 0; color: var(--text); cursor: pointer;
  font-family: var(--font); font-size: 14px; padding: 10px 22px; border-radius: 10px; transition: background .2s; }
.wait-cancel:hover { background: rgba(255,255,255,.16); }

.fade-in { animation: fadeUp .5s ease both; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }