:root {
  --bg: #070b16;
  --bg2: #0b1220;
  --panel: rgba(255,255,255,.06);
  --panel2: rgba(255,255,255,.09);
  --text: #eaf0ff;
  --muted: rgba(234,240,255,.70);
  --muted2: rgba(234,240,255,.55);
  --border: rgba(255,255,255,.12);
  --border2: rgba(255,255,255,.18);
  --brand: #7c5cff;
  --brand2: #30d5c8;
  --danger: #ff4d4d;
  --ok: #35d07f;
  --warn: #ffce3a;
  --shadow: 0 16px 50px rgba(0,0,0,.40);
  --shadow2: 0 10px 24px rgba(0,0,0,.30);
  --r-sm: 12px;
  --r-md: 16px;
  --r-lg: 22px;
  --ring: 0 0 0 4px rgba(124,92,255,.22);
  --container: 1100px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }

body {
  margin: 0;
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
  background:
    radial-gradient(1200px 800px at 10% 5%, rgba(124,92,255,.35), transparent 55%),
    radial-gradient(900px 700px at 90% 10%, rgba(48,213,200,.22), transparent 55%),
    radial-gradient(900px 700px at 50% 95%, rgba(124,92,255,.16), transparent 60%),
    linear-gradient(180deg, var(--bg), var(--bg2));
  background-attachment: fixed;
}

a { color: inherit; text-decoration: none; }
a:hover { text-decoration: none; }

.container {
  width: min(var(--container), calc(100% - 32px));
  margin: 0 auto;
  padding: 18px 0 44px;
}

/* Topbar */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(7,11,22,.6);
  position: sticky;
  top: 0;
  z-index: 100;
  border-radius: 0 0 16px 16px;
  padding-left: 16px;
  padding-right: 16px;
}

.brand {
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, var(--brand), var(--brand2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.row {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

/* Typography helpers */
.h1 { font-size: 28px; margin: 0 0 8px; font-weight: 700; letter-spacing: -0.5px; }
.h2 { font-size: 18px; margin: 0 0 10px; font-weight: 600; }
.muted { color: var(--muted); line-height: 1.5; }
.small { color: var(--muted2); font-size: 13px; line-height: 1.4; }

/* Card & layout */
.card {
  background: radial-gradient(1200px 220px at 30% 0%, rgba(124,92,255,.10), transparent 55%),
              linear-gradient(180deg, rgba(255,255,255,.085), rgba(255,255,255,.045));
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--r-md);
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 16px;
  position: relative;
  overflow: hidden;
}

.card.soft {
  background: rgba(0,0,0,.2);
  border: 1px solid rgba(255,255,255,.08);
  box-shadow: none;
}

.section {
  padding: 10px 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.hero {
  padding: 32px 24px;
  border-radius: var(--r-lg);
  border: 1px solid rgba(255,255,255,.12);
  background:
    radial-gradient(900px 220px at 10% 0%, rgba(48,213,200,.10), transparent 60%),
    radial-gradient(900px 220px at 70% 0%, rgba(124,92,255,.14), transparent 60%),
    rgba(255,255,255,.05);
  box-shadow: var(--shadow2);
  margin-bottom: 24px;
  text-align: center;
}

/* Separator */
.sep {
  height: 1px;
  background: rgba(255,255,255,.10);
  margin: 16px 0;
  width: 100%;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
  color: var(--text);
  font-weight: 500;
  font-size: 14px;
  cursor: pointer;
  transition: all .2s ease;
  user-select: none;
  text-align: center;
}

.btn:hover {
  background: rgba(255,255,255,.10);
  border-color: rgba(255,255,255,.25);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,.2);
}

.btn:active { transform: translateY(0px); }

.btn-primary {
  border: none;
  background: linear-gradient(135deg, var(--brand), var(--brand2));
  box-shadow: 0 4px 14px rgba(124,92,255,.3);
  color: white;
  font-weight: 600;
}

.btn-primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 6px 20px rgba(124,92,255,.4);
}

.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--muted);
}
.btn-ghost:hover {
  background: rgba(255,255,255,.05);
  color: var(--text);
  border-color: rgba(255,255,255,.1);
}

/* Forms */
label {
  font-size: 13px;
  color: var(--muted);
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
}

.input, select, textarea {
  display: block;
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(0,0,0,.22);
  color: var(--text);
  outline: none;
  font-family: inherit;
  font-size: 15px;
  transition: all .2s ease;
}

.input::placeholder, textarea::placeholder { color: rgba(234,240,255,.3); }

.input:focus, select:focus, textarea:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(124,92,255,.25);
  background: rgba(0,0,0,.4);
}

.form-row { display: grid; gap: 16px; margin-bottom: 16px; }

@media (min-width: 640px) {
  .form-row.two { grid-template-columns: 1fr 1fr; }
}

.stack { display: flex; flex-direction: column; gap: 12px; }

/* Alerts */
.alert {
  border-radius: 12px;
  padding: 14px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
  font-size: 14px;
  margin-bottom: 16px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.alert.ok {
  border-color: rgba(53,208,127,.35);
  background: rgba(53,208,127,.12);
  color: #a3ffce;
}

.alert.bad {
  border-color: rgba(255,77,77,.35);
  background: rgba(255,77,77,.12);
  color: #ffc2c2;
}

.alert.warn {
  border-color: rgba(255,206,58,.32);
  background: rgba(255,206,58,.10);
  color: #ffeeb0;
}

/* Misc */
.pill {
  padding: 4px 10px;
  border: 1px solid rgba(255,255,255,.2);
  background: rgba(255,255,255,.05);
  border-radius: 99px;
  font-size: 12px;
  color: var(--muted);
  font-weight: 500;
}

pre {
  background: rgba(0,0,0,.3);
  padding: 12px;
  border-radius: 8px;
  overflow-x: auto;
  font-family: monospace;
  font-size: 13px;
  color: #a3ffce;
  border: 1px solid rgba(255,255,255,.08);
  margin: 0;
}