:root {
  --bg: #0b0f1a;
  --bg-soft: #111827;
  --card: #151c2c;
  --card-hover: #1a2338;
  --border: #263047;
  --text: #e7ecf5;
  --text-dim: #93a0b8;
  --accent: #6366f1;
  --accent-2: #0ea5e9;
  --green: #34d399;
  --red: #f87171;
  --blue: #38bdf8;
  --radius: 16px;
  --shadow: 0 20px 50px -20px rgba(0, 0, 0, .6);
}

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

html { color-scheme: dark; }

body {
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(99, 102, 241, .18), transparent 60%),
    radial-gradient(900px 500px at 5% 10%, rgba(14, 165, 233, .12), transparent 60%),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.55;
}

.container { width: min(1040px, 92vw); margin-inline: auto; }

/* ===== Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: blur(12px);
  background: rgba(11, 15, 26, .75);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); }
.brand-logo { width: 34px; height: 34px; }
.brand-name { font-weight: 800; font-size: 1.15rem; letter-spacing: -.02em; }
.brand-name em { font-style: normal; background: linear-gradient(90deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }

.header-actions { display: flex; align-items: center; gap: 14px; }
.lang-switch { display: flex; border: 1px solid var(--border); border-radius: 999px; overflow: hidden; }
.lang-switch button {
  background: transparent; border: 0; color: var(--text-dim);
  font: inherit; font-size: .8rem; font-weight: 600;
  padding: 6px 14px; cursor: pointer; transition: .2s;
}
.lang-switch button.active { background: linear-gradient(90deg, var(--accent), var(--accent-2)); color: #fff; }
.gh-link { color: var(--text-dim); display: flex; transition: .2s; }
.gh-link:hover { color: var(--text); }

/* ===== Hero ===== */
.hero { text-align: center; padding: 56px 0 34px; }
.hero h1 {
  font-size: clamp(1.8rem, 4.2vw, 3rem);
  font-weight: 800; letter-spacing: -.03em; line-height: 1.15;
  background: linear-gradient(180deg, #fff, #b6c2dd);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { margin-top: 14px; color: var(--text-dim); font-size: 1.05rem; max-width: 620px; margin-inline: auto; }

/* ===== Stepper ===== */
.stepper {
  list-style: none; display: flex; justify-content: center; gap: 8px;
  margin: 10px 0 28px; flex-wrap: wrap;
}
.step { display: flex; align-items: center; gap: 8px; padding: 6px 14px; border-radius: 999px; border: 1px solid transparent; color: var(--text-dim); font-size: .85rem; }
.step-dot {
  width: 24px; height: 24px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--card); border: 1px solid var(--border);
  font-size: .75rem; font-weight: 700;
}
.step.active { color: var(--text); border-color: var(--border); background: var(--card); }
.step.active .step-dot { background: linear-gradient(135deg, var(--accent), var(--accent-2)); border: 0; color: #fff; }
.step.done .step-dot { background: var(--green); border: 0; color: #06281c; }

/* ===== Panels ===== */
.panel { padding-bottom: 40px; }
.hidden { display: none !important; }

/* ===== Style cards ===== */
.style-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 18px; }
.style-card {
  text-align: left; cursor: pointer;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px 22px; color: var(--text);
  display: flex; flex-direction: column; gap: 10px;
  font: inherit; transition: transform .18s, border-color .18s, background .18s;
  box-shadow: var(--shadow);
}
.style-card:hover, .style-card:focus-visible {
  transform: translateY(-4px);
  border-color: var(--accent);
  background: var(--card-hover);
  outline: none;
}
.style-icon { width: 44px; height: 44px; border-radius: 12px; display: flex; align-items: center; justify-content: center; background: rgba(99, 102, 241, .14); color: var(--accent-2); }
.style-icon svg { width: 24px; height: 24px; }
.style-title { font-weight: 700; font-size: 1.12rem; }
.style-desc { color: var(--text-dim); font-size: .92rem; flex: 1; }
.style-tag { align-self: flex-start; font-size: .72rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; padding: 4px 10px; border-radius: 999px; }
.tag-green { background: rgba(52, 211, 153, .14); color: var(--green); }
.tag-red { background: rgba(248, 113, 113, .14); color: var(--red); }
.tag-blue { background: rgba(56, 189, 248, .14); color: var(--blue); }

/* ===== Form ===== */
#licenseForm { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 18px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: .85rem; font-weight: 600; color: var(--text-dim); }
.field input[type="text"], .field input[type="email"], .field input[type="number"],
.field input[type="url"], .field select {
  background: var(--bg-soft); border: 1px solid var(--border); border-radius: 10px;
  color: var(--text); font: inherit; padding: 11px 14px; transition: border-color .2s;
}
.field select { cursor: pointer; appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--text-dim) 50%), linear-gradient(135deg, var(--text-dim) 50%, transparent 50%); background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%; background-size: 5px 5px; background-repeat: no-repeat; }
.field input:focus, .field select:focus { outline: none; border-color: var(--accent); }

.questions { margin-top: 22px; display: flex; flex-direction: column; gap: 12px; }
.q-toggle {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  background: var(--bg-soft); border: 1px solid var(--border); border-radius: 12px;
  padding: 14px 16px;
}
.q-toggle .q-text { font-size: .95rem; }
.q-toggle .q-hint { display: block; font-size: .8rem; color: var(--text-dim); margin-top: 2px; }

.switch { position: relative; flex-shrink: 0; width: 46px; height: 26px; }
.switch input { opacity: 0; width: 100%; height: 100%; position: absolute; cursor: pointer; z-index: 1; }
.switch .track {
  position: absolute; inset: 0; border-radius: 999px;
  background: var(--border); transition: .2s;
}
.switch .track::after {
  content: ""; position: absolute; top: 3px; left: 3px;
  width: 20px; height: 20px; border-radius: 50%; background: #fff; transition: .2s;
}
.switch input:checked + .track { background: linear-gradient(90deg, var(--accent), var(--accent-2)); }
.switch input:checked + .track::after { transform: translateX(20px); }

.q-group-title { margin-top: 10px; font-size: .78rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--text-dim); }
.q-number input {
  width: 90px; text-align: center;
  background: var(--card); border: 1px solid var(--border); border-radius: 10px;
  color: var(--text); font: inherit; padding: 8px 10px;
}
.q-number input:focus { outline: none; border-color: var(--accent); }
.q-toggle.q-hidden { display: none; }

.form-nav { display: flex; justify-content: space-between; gap: 12px; margin-top: 26px; flex-wrap: wrap; }

/* ===== Buttons ===== */
.btn {
  font: inherit; font-weight: 600; cursor: pointer;
  border-radius: 10px; padding: 11px 22px; border: 1px solid transparent;
  display: inline-flex; align-items: center; gap: 8px; transition: .2s;
}
.btn-primary { background: linear-gradient(90deg, var(--accent), var(--accent-2)); color: #fff; }
.btn-primary:hover { filter: brightness(1.12); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--text-dim); border-color: var(--border); }
.btn-ghost:hover { color: var(--text); border-color: var(--text-dim); }
.btn-small { background: var(--bg-soft); color: var(--text); border-color: var(--border); padding: 7px 14px; font-size: .82rem; }
.btn-small:hover { border-color: var(--accent); }

/* ===== Result ===== */
.result-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 18px; flex-wrap: wrap; margin-bottom: 16px; }
.result-head h2 { font-size: 1.4rem; letter-spacing: -.02em; }
.result-sub { color: var(--text-dim); font-size: .9rem; margin-top: 4px; }
.result-tabs { display: flex; border: 1px solid var(--border); border-radius: 999px; overflow: hidden; }
.tab { background: transparent; border: 0; color: var(--text-dim); font: inherit; font-size: .85rem; font-weight: 600; padding: 8px 18px; cursor: pointer; }
.tab.active { background: linear-gradient(90deg, var(--accent), var(--accent-2)); color: #fff; }

.license-box { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.license-toolbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px; border-bottom: 1px solid var(--border); background: var(--bg-soft);
}
.file-chip { font-family: "JetBrains Mono", monospace; font-size: .78rem; color: var(--text-dim); background: var(--card); border: 1px solid var(--border); padding: 4px 10px; border-radius: 6px; }
.toolbar-actions { display: flex; gap: 8px; }
#licenseText {
  font-family: "JetBrains Mono", monospace;
  font-size: .82rem; line-height: 1.7;
  padding: 22px; margin: 0;
  white-space: pre-wrap; word-break: break-word;
  max-height: 480px; overflow: auto;
  color: #c9d4e8;
}

.disclaimer { margin-top: 18px; font-size: .78rem; color: var(--text-dim); text-align: center; }

/* ===== Footer ===== */
.site-footer { margin-top: auto; border-top: 1px solid var(--border); padding: 18px 0; font-size: .82rem; color: var(--text-dim); text-align: center; }

/* ===== Toast ===== */
.toast {
  position: fixed; bottom: 26px; left: 50%;
  transform: translate(-50%, 80px);
  background: var(--card); border: 1px solid var(--green); color: var(--text);
  border-radius: 12px; padding: 12px 22px; font-size: .9rem; font-weight: 600;
  opacity: 0; transition: .3s; pointer-events: none; box-shadow: var(--shadow);
}
.toast.show { transform: translate(-50%, 0); opacity: 1; }

@media (max-width: 560px) {
  .hero { padding: 36px 0 24px; }
  #licenseForm { padding: 20px 16px; }
  .step-label { display: none; }
}