:root {
    --bg: #10141c;
    --panel: #171d28;
    --line: #26303f;
    --text: #e6edf6;
    --muted: #8b9bb0;
    --accent: #f0b90b;
    --bad: #ef5350;
    --ok: #26a69a;
}
* { box-sizing: border-box; }
body {
    margin: 0;
    min-height: 100vh;
    background: var(--bg);
    color: var(--text);
    font: 15px/1.5 "Segoe UI", system-ui, sans-serif;
}
.landing {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 100vh;
}
@media (max-width: 900px) {
    .landing { grid-template-columns: 1fr; }
    .hero { min-height: 40vh; }
}
.hero {
    padding: 48px 40px;
    background: radial-gradient(900px 500px at 10% 0%, #1a2436, var(--bg));
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.hero h1 { font-size: 36px; margin: 0 0 12px; }
.hero .tag { color: var(--accent); font-weight: 600; letter-spacing: .5px; }
.hero p { color: var(--muted); max-width: 420px; line-height: 1.6; }
.hero ul { color: var(--muted); padding-left: 18px; }
.login-panel {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px 24px;
    border-left: 1px solid var(--line);
}
.card {
    width: min(380px, 100%);
    padding: 28px 26px 24px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 10px;
}
.card h2 { margin: 0 0 6px; font-size: 20px; }
.muted { margin: 0 0 18px; color: var(--muted); font-size: 13px; }
label { display: block; margin: 0 0 12px; color: var(--muted); font-size: 12px; }
input {
    display: block;
    width: 100%;
    margin-top: 6px;
    padding: 10px 12px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: var(--bg);
    color: var(--text);
    font: inherit;
}
button[type="submit"] {
    width: 100%;
    margin-top: 8px;
    padding: 11px 14px;
    border: 0;
    border-radius: 6px;
    background: var(--accent);
    color: #111;
    font-weight: 600;
    cursor: pointer;
}
.register-link {
    margin-top: 16px;
    text-align: center;
    font-size: 13px;
    color: var(--muted);
}
.register-link a { color: var(--accent); text-decoration: none; }
.msg { margin: 0 0 14px; padding: 8px 10px; border-radius: 6px; font-size: 13px; }
.msg.bad { background: rgba(239, 83, 80, .15); color: var(--bad); }
.msg.ok { background: rgba(38, 166, 154, .15); color: var(--ok); }