:root {
  color-scheme: dark;
  --bg: #090d18;
  --panel: rgba(18, 25, 43, .82);
  --panel-2: #151d31;
  --line: rgba(160, 177, 219, .13);
  --text: #f1f5ff;
  --muted: #8d9ab6;
  --blue: #7590ff;
  --purple: #a17aff;
  --cyan: #66d9ef;
  --radius: 22px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 24px;
}

body {
  margin: 0;
  min-height: 100vh;
  padding: 0 16px calc(105px + env(safe-area-inset-bottom));
  overflow-x: hidden;
  background:
    radial-gradient(ellipse at 50% -15%, rgba(72, 94, 185, .18), transparent 55%),
    var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}

button, input, textarea { font: inherit; }
button, a, label { -webkit-tap-highlight-color: transparent; }
button { color: inherit; }
button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}

.ambient {
  position: fixed;
  z-index: -1;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  filter: blur(95px);
  opacity: .18;
  pointer-events: none;
}
.ambient-one { top: 100px; left: -180px; background: #526bff; }
.ambient-two { top: 650px; right: -200px; background: #974dff; }

.app {
  width: 100%;
  max-width: 520px;
  margin: 0 auto;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 0 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: inherit;
  text-decoration: none;
}
.brand-icon, .section-icon, .build-button-icon, .upload-icon {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
}
.brand-icon {
  width: 43px;
  height: 43px;
  border-radius: 15px;
  color: white;
  background: linear-gradient(135deg, #7892ff, #7657e8);
  box-shadow: 0 8px 28px rgba(102, 111, 255, .24);
}
.brand-icon svg { width: 22px; height: 22px; }
.brand-copy { display: grid; gap: 3px; }
.brand-copy strong { font-size: 15px; letter-spacing: -.5px; }
.brand-copy small { color: #8292bd; font-size: 9px; font-weight: 800; letter-spacing: 2px; }

.icon-button {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255,255,255,.035);
  cursor: pointer;
}
.icon-button svg { width: 19px; height: 19px; color: #b7c3e2; }
.icon-button:active { transform: scale(.95); }

.hero { padding: 25px 0 28px; }
.hero-label, .eyebrow {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #9aa9cf;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 1.7px;
}
.live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #69e4b1;
  box-shadow: 0 0 0 4px rgba(105,228,177,.1);
}
.hero h1 {
  margin: 17px 0 12px;
  font-size: clamp(35px, 9vw, 48px);
  line-height: 1.12;
  letter-spacing: -2.2px;
  font-weight: 800;
}
.hero h1 span {
  color: transparent;
  background: linear-gradient(100deg, #94a8ff, #b39aff 60%, #72dcf0);
  background-clip: text;
  -webkit-background-clip: text;
}
.hero > p {
  max-width: 370px;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.8;
}

.hero-preview {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 225px;
  margin-top: 22px;
  overflow: hidden;
  border: 1px solid rgba(155, 170, 255, .13);
  border-radius: 25px;
  background:
    radial-gradient(ellipse at 50% 90%, rgba(87, 106, 255, .15), transparent 60%),
    linear-gradient(140deg, rgba(23, 31, 54, .9), rgba(13, 19, 34, .8));
}
.preview-glow {
  position: absolute;
  width: 130px;
  height: 130px;
  border-radius: 50%;
  background: #687aff;
  filter: blur(80px);
  opacity: .35;
}
.phone {
  position: relative;
  z-index: 1;
  width: 120px;
  height: 183px;
  padding: 7px;
  border: 2px solid #56617f;
  border-radius: 23px;
  background: #080d18;
  box-shadow: 0 16px 40px rgba(0,0,0,.35), 0 0 0 5px rgba(255,255,255,.025);
  transform: rotate(-5deg);
}
.phone-top { height: 10px; display:flex; justify-content:center; gap:4px; align-items:center; }
.phone-top span:first-child { width: 25px; height: 4px; border-radius: 5px; background:#333e5b; }
.phone-top span:last-child { width: 4px; height: 4px; border-radius:50%; background:#333e5b; }
.phone-screen {
  height: calc(100% - 10px);
  padding: 13px 9px;
  border-radius: 14px;
  background: linear-gradient(160deg, #17213b, #0e1425);
}
.mock-logo {
  display:grid;
  place-items:center;
  width:30px;
  height:30px;
  margin:0 auto 12px;
  color:#a9baff;
  border-radius:10px;
  background:rgba(112,139,255,.17);
}
.mock-logo svg { width:16px; }
.mock-line { width:60%; height:5px; margin:7px auto; border-radius:10px; background:#34415e; }
.mock-line.wide { width:80%; background:#6979a5; }
.mock-card {
  display:flex;
  align-items:center;
  gap:5px;
  margin-top:14px;
  padding:8px 5px;
  border:1px solid rgba(144,163,255,.15);
  border-radius:9px;
  background:rgba(124,145,255,.08);
}
.mock-card > svg:first-child { width:15px; color:#9eafff; }
.mock-card > svg:last-child { width:12px; color:#6fe2b1; }
.mock-card div { display:grid; gap:3px; flex:1; }
.mock-card b { font-size:7px; }
.mock-card small { color:#8190b1; font-size:6px; }
.mock-bars { display:flex; gap:5px; margin-top:12px; }
.mock-bars span { flex:1; height:15px; border-radius:4px; background:#27324d; }
.float-chip {
  position:absolute;
  z-index:2;
  top:57px;
  left:calc(50% + 48px);
  display:flex;
  align-items:center;
  gap:6px;
  padding:9px 11px;
  border:1px solid rgba(160,177,219,.16);
  border-radius:12px;
  background:rgba(21,29,49,.9);
  box-shadow:0 8px 25px rgba(0,0,0,.2);
  font-size:10px;
  font-weight:700;
}
.float-chip svg { width:13px; color:#b7a0ff; }
.float-chip.second { top:auto; bottom:40px; left:auto; right:calc(50% + 45px); }
.float-chip.second svg { color:#69e4b1; }

.section-heading {
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin: 7px 0 16px;
}
.section-heading h2 { margin:5px 0 0; font-size:22px; letter-spacing:-.8px; }
.eyebrow { font-size:9px; color:#7788b1; }
.version-chip {
  display:flex;
  align-items:center;
  gap:7px;
  padding:8px 10px;
  border:1px solid rgba(105,228,177,.13);
  border-radius:10px;
  background:rgba(105,228,177,.05);
  color:#a0e8ca;
  font-size:9px;
  font-weight:800;
  letter-spacing:1px;
}
.version-chip .live-dot { width:5px; height:5px; }

.build-form { display:grid; gap:15px; }
.panel {
  min-width:0;
  padding:19px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:linear-gradient(145deg, rgba(20,28,47,.9), rgba(14,20,35,.91));
  box-shadow:0 13px 35px rgba(0,0,0,.11);
}
.panel-heading {
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:22px;
}
.section-icon {
  width:42px;
  height:42px;
  border:1px solid rgba(136,157,255,.13);
  border-radius:14px;
  background:rgba(112,137,255,.1);
  color:#9eafff;
}
.section-icon svg { width:19px; height:19px; }
.panel-heading h3 { margin:0; font-size:14px; letter-spacing:-.25px; }
.panel-heading p { margin:5px 0 0; color:var(--muted); font-size:11px; line-height:1.5; }

.field { min-width:0; margin-top:18px; }
.field:first-of-type { margin-top:0; }
.field > label:not(.upload-box) {
  display:block;
  margin-bottom:9px;
  color:#c5cee4;
  font-size:11px;
  font-weight:700;
}
.optional { margin-left:5px; color:#7e8ba8; font-size:9px; font-weight:600; }
.input-wrap {
  display:flex;
  align-items:center;
  gap:10px;
  min-width:0;
  height:48px;
  padding:0 13px;
  border:1px solid rgba(155,170,210,.13);
  border-radius:13px;
  background:rgba(6,10,20,.4);
  transition:border-color .2s, box-shadow .2s;
}
.input-wrap:focus-within {
  border-color:rgba(126,150,255,.65);
  box-shadow:0 0 0 3px rgba(115,139,255,.08);
}
.input-wrap > svg { width:16px; height:16px; flex:0 0 auto; color:#7485b0; }
.input-wrap input {
  width:100%;
  min-width:0;
  height:100%;
  padding:0;
  border:0;
  outline:0;
  background:transparent;
  color:var(--text);
  font-size:12px;
}
.input-wrap input:focus-visible { outline:none; }
input::placeholder, textarea::placeholder { color:#5e6a86; }
.field-hint { display:block; margin-top:7px; color:#6f7c99; font-size:10px; }

.segmented {
  display:flex;
  gap:5px;
  padding:4px;
  border:1px solid rgba(155,170,210,.1);
  border-radius:13px;
  background:rgba(5,9,18,.45);
}
.seg-btn {
  display:flex;
  align-items:center;
  justify-content:center;
  gap:6px;
  flex:1;
  min-width:0;
  min-height:39px;
  padding:8px 5px;
  border:1px solid transparent;
  border-radius:10px;
  background:transparent;
  color:#8491ae;
  font-size:10px;
  font-weight:700;
  cursor:pointer;
  transition:all .2s ease;
}
.seg-btn svg { width:14px; height:14px; }
.seg-btn.active {
  border-color:rgba(143,159,255,.16);
  background:linear-gradient(135deg, rgba(104,126,255,.22), rgba(134,100,245,.13));
  color:#dce3ff;
}
.seg-btn:active { transform:scale(.98); }

.upload-box {
  display:flex;
  align-items:center;
  gap:11px;
  min-height:66px;
  padding:11px;
  border:1px dashed rgba(142,159,205,.25);
  border-radius:14px;
  background:rgba(7,11,21,.25);
  cursor:pointer;
  transition:border-color .2s, background .2s;
}
.upload-box:hover { border-color:rgba(129,151,255,.55); background:rgba(111,132,255,.045); }
.upload-icon { width:39px; height:39px; border-radius:12px; background:rgba(112,137,255,.1); color:#9bafff; }
.upload-icon svg { width:18px; }
.upload-copy { display:grid; gap:5px; flex:1; min-width:0; }
.upload-copy b { font-size:11px; }
.upload-copy small { overflow:hidden; color:#7e8ba8; font-size:10px; text-overflow:ellipsis; white-space:nowrap; }
.upload-box > svg { width:15px; color:#7383a6; }
.file-input { position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; clip-path:inset(50%); }

.choice-grid { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:8px; }
.choice {
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:center;
  min-width:0;
  gap:7px;
  padding:12px 4px 11px;
  border:1px solid rgba(151,166,205,.13);
  border-radius:14px;
  background:rgba(5,9,18,.26);
  text-align:center;
  cursor:pointer;
  transition:all .2s ease;
}
.choice input { position:absolute; opacity:0; pointer-events:none; }
.choice-icon { display:grid; place-items:center; width:34px; height:34px; border-radius:11px; background:#1b243a; color:#8595c0; }
.choice-icon svg { width:17px; height:17px; }
.choice b { font-size:10px; }
.choice small { color:#7784a1; font-size:9px; }
.choice.selected { border-color:rgba(132,151,255,.55); background:rgba(102,126,255,.09); }
.choice.selected .choice-icon { background:rgba(120,142,255,.19); color:#b8c5ff; }
.choice:focus-within { outline:2px solid var(--blue); outline-offset:2px; }

.native-file {
  display:block;
  width:100%;
  padding:10px;
  border:1px solid var(--line);
  border-radius:12px;
  background:rgba(5,9,18,.4);
  color:#9ca9c4;
  font-size:11px;
}
.native-file::file-selector-button {
  margin-right:10px;
  padding:8px 10px;
  border:0;
  border-radius:8px;
  background:#273453;
  color:#e0e7ff;
  font-size:10px;
  cursor:pointer;
}
textarea {
  display:block;
  width:100%;
  resize:vertical;
  padding:12px;
  border:1px solid var(--line);
  border-radius:12px;
  background:rgba(5,9,18,.4);
  color:var(--text);
  font-size:12px;
  line-height:1.6;
}
.two-col { display:grid; grid-template-columns:1fr 1fr; gap:10px; }
.two-col .field { margin-top:0; }

.notice {
  display:flex;
  align-items:flex-start;
  gap:10px;
  margin-top:19px;
  padding:12px;
  border:1px solid rgba(115,146,255,.12);
  border-radius:12px;
  background:rgba(104,126,255,.055);
}
.notice > svg { flex:0 0 auto; width:16px; color:#8ea5ff; }
.notice p { margin:0; color:#9ca9c4; font-size:10px; line-height:1.7; }

.build-button {
  display:flex;
  align-items:center;
  gap:13px;
  width:100%;
  min-height:73px;
  padding:13px 15px;
  border:1px solid rgba(192,201,255,.23);
  border-radius:18px;
  background:linear-gradient(110deg, #657fff, #795ce8 72%, #8b64e8);
  box-shadow:0 12px 28px rgba(92,95,231,.22);
  text-align:left;
  cursor:pointer;
  transition:transform .2s, box-shadow .2s, opacity .2s;
}
.build-button:hover { box-shadow:0 15px 35px rgba(92,95,231,.3); }
.build-button:active { transform:scale(.99); }
.build-button:disabled { opacity:.55; cursor:wait; }
.build-button-icon {
  width:42px;
  height:42px;
  border:1px solid rgba(255,255,255,.2);
  border-radius:13px;
  background:rgba(255,255,255,.13);
}
.build-button-icon svg { width:20px; }
.build-button > span:nth-child(2) { display:grid; gap:5px; flex:1; }
.build-button b { font-size:13px; }
.build-button small { color:rgba(255,255,255,.75); font-size:10px; }
.build-arrow { width:18px; }

.progress-panel, .result-panel { margin-top:17px; }
.progress-panel .panel-heading { margin-bottom:16px; }
.progress-track { height:7px; overflow:hidden; border-radius:10px; background:#222c43; }
.progress-track span {
  display:block;
  width:0;
  height:100%;
  border-radius:10px;
  background:linear-gradient(90deg,#758fff,#a17aff);
  transition:width .35s ease;
}
.progress-meta { display:flex; justify-content:space-between; margin-top:9px; color:#8b99b8; font-size:10px; }
.log-box {
  max-height:190px;
  overflow:auto;
  margin:14px 0 0;
  padding:12px;
  border:1px solid var(--line);
  border-radius:12px;
  background:#070b14;
  color:#a9b9d8;
  font:11px/1.65 ui-monospace, monospace;
  white-space:pre-wrap;
  overflow-wrap:anywhere;
}
.result-panel { text-align:center; }
.result-icon {
  display:grid;
  place-items:center;
  width:55px;
  height:55px;
  margin:0 auto 14px;
  border:1px solid rgba(105,228,177,.2);
  border-radius:18px;
  background:rgba(105,228,177,.08);
  color:#78e5b8;
}
.result-icon svg { width:27px; height:27px; }
.result-panel h3 { margin:0 0 8px; font-size:17px; }
.result-panel p { color:var(--muted); font-size:12px; line-height:1.7; }
.download-button, .primary-button {
  display:flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  width:100%;
  min-height:45px;
  margin-top:16px;
  border:0;
  border-radius:12px;
  background:linear-gradient(110deg,#667fff,#8563e9);
  color:white;
  font-size:12px;
  font-weight:700;
  text-decoration:none;
  cursor:pointer;
}
.download-button svg { width:17px; }

.footer { padding:28px 0 12px; text-align:center; }
.footer-mark { display:inline-grid; place-items:center; width:34px; height:34px; border:1px solid var(--line); border-radius:12px; color:#9caaff; }
.footer-mark svg { width:17px; }
.footer p { margin:10px 0 5px; color:#9aa6c1; font-size:10px; }
.footer p b { color:#d5ddf2; letter-spacing:1.5px; }
.footer > small { color:#596783; font-size:10px; }

.bottom-nav {
  position:fixed;
  z-index:20;
  right:0;
  bottom:0;
  left:0;
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:5px;
  width:100%;
  max-width:520px;
  margin:0 auto;
  padding:10px 15px calc(10px + env(safe-area-inset-bottom));
  border:1px solid rgba(153,171,220,.12);
  border-bottom:0;
  border-radius:21px 21px 0 0;
  background:rgba(12,17,30,.92);
  box-shadow:0 -10px 35px rgba(0,0,0,.22);
  backdrop-filter:blur(22px);
  -webkit-backdrop-filter:blur(22px);
}
.nav-item {
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:6px;
  min-width:0;
  min-height:52px;
  padding:5px;
  border:1px solid transparent;
  border-radius:13px;
  background:transparent;
  color:#687693;
  text-decoration:none;
  cursor:pointer;
  transition:all .2s ease;
}
.nav-item svg { width:19px; height:19px; }
.nav-item span { font-size:10px; font-weight:700; }
.nav-item.active { border-color:rgba(124,145,255,.13); background:rgba(115,137,255,.11); color:#aabaff; }
.nav-item:active { transform:scale(.96); }

.modal-backdrop {
  position:fixed;
  z-index:40;
  inset:0;
  display:grid;
  place-items:center;
  padding:20px;
  background:rgba(2,4,10,.75);
  backdrop-filter:blur(10px);
}
.modal {
  position:relative;
  width:100%;
  max-width:390px;
  padding:25px;
  border:1px solid var(--line);
  border-radius:23px;
  background:#131b2e;
  box-shadow:0 25px 80px rgba(0,0,0,.4);
}
.modal-close {
  position:absolute;
  top:14px;
  right:14px;
  display:grid;
  place-items:center;
  width:34px;
  height:34px;
  border:1px solid var(--line);
  border-radius:10px;
  background:transparent;
  color:#9ca9c4;
  cursor:pointer;
}
.modal-close svg { width:16px; }
.modal h3 { margin:18px 0 10px; font-size:19px; }
.modal p { color:#9ca9c4; font-size:12px; line-height:1.8; }

.toast {
  position:fixed;
  z-index:60;
  right:16px;
  bottom:calc(92px + env(safe-area-inset-bottom));
  left:16px;
  width:max-content;
  max-width:calc(100% - 32px);
  margin:0 auto;
  padding:12px 16px;
  border:1px solid rgba(156,174,230,.2);
  border-radius:13px;
  background:#1c2740;
  box-shadow:0 12px 35px rgba(0,0,0,.35);
  color:#e6ecff;
  font-size:11px;
  line-height:1.5;
  opacity:0;
  pointer-events:none;
  transform:translateY(8px);
  transition:opacity .2s, transform .2s;
}
.toast.show { opacity:1; transform:translateY(0); }

.hidden { display:none !important; }

@media (max-width:380px) {
  body { padding-right:11px; padding-left:11px; }
  .panel { padding:15px; }
  .choice-grid { gap:5px; }
  .choice { padding-right:2px; padding-left:2px; }
  .choice b { font-size:9px; }
  .choice small { font-size:8px; }
  .seg-btn { font-size:9px; gap:4px; }
  .hero-preview { height:205px; }
}

@media (prefers-reduced-motion:reduce) {
  *, *::before, *::after {
    scroll-behavior:auto !important;
    animation:none !important;
    transition:none !important;
  }
}