:root {
    --bg: #0f172a;
    --card: #111827;
    --text: #e5e7eb;
    --muted: #9ca3af;
    --accent: #60a5fa;
    --accent-strong: #3b82f6;
    --danger: #ef4444;
    --success: #22c55e;
    --radius: 12px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: "Inter", system-ui, -apple-system, sans-serif;
    background: radial-gradient(circle at 20% 20%, rgba(96,165,250,0.12), transparent 30%),
    radial-gradient(circle at 80% 0%, rgba(52,211,153,0.12), transparent 25%),
    var(--bg);
    color: var(--text);
    min-height: 100vh;
}

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

.page { width: min(1100px, 92%); margin: 0 auto 4rem; padding: 1rem 0; }

.hero {
    padding: 3rem 0 1.5rem;
}

.hero h1 {
    margin: 0.25rem 0;
    font-size: clamp(2.1rem, 4vw, 2.8rem);
    color: #fff;
}

.sub {
    color: var(--muted);
    margin: 0.25rem 0;
    max-width: 720px;
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.8rem;
    color: var(--accent);
    margin: 0;
}

.grid {
    width: min(1100px, 92%);
    margin: 0 auto 3rem;
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
    background: var(--card);
    border: 1px solid rgba(255,255,255,0.05);
    padding: 1.2rem 1.4rem;
    border-radius: var(--radius);
    box-shadow: 0 20px 50px rgba(0,0,0,0.35);
    transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.card:hover {
    transform: translateY(-4px);
    border-color: rgba(96,165,250,0.4);
    box-shadow: 0 24px 60px rgba(0,0,0,0.45);
}

.card h3 {
    margin: 0 0 0.4rem;
    color: #fff;
}

.card p, .card li {
    color: var(--muted);
    line-height: 1.5;
}

.form-card {
    max-width: 520px;
}

.form {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

label {
    font-size: 0.9rem;
    color: var(--muted);
}

input {
    background: #0b1224;
    border: 1px solid rgba(255,255,255,0.08);
    color: #fff;
    padding: 0.75rem 0.9rem;
    border-radius: 10px;
    font-size: 1rem;
}

input:focus {
    outline: 2px solid rgba(96,165,250,0.5);
    border-color: rgba(96,165,250,0.5);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-strong), #2563eb);
    color: #fff;
    border: none;
    padding: 0.8rem 1rem;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 140ms ease, box-shadow 140ms ease, filter 140ms ease;
}

.btn-primary:hover {
    transform: translateY(-1px);
    filter: brightness(1.05);
    box-shadow: 0 12px 30px rgba(59,130,246,0.25);
}

.status {
    margin-top: 0.5rem;
    font-weight: 600;
}

.status.ok { color: var(--success); }
.status.error { color: var(--danger); }
.status.medium { color: #f59e0b; }
.status.weak { color: var(--danger); }
.status.strong { color: var(--success); }
.status.muted { color: var(--muted); }

.hints {
    color: var(--muted);
    padding-left: 1.1rem;
    margin: 0.8rem 0 0;
}

.tips ul {
    padding-left: 1.1rem;
    margin: 0;
}

.small { font-size: 0.9rem; }
.muted { color: var(--muted); }