:root {
    color-scheme: dark;
    --bg: #0a0e17;
    --card: #111827;
    --text: #e8ecf8;
    --muted: #94a3b8;
    --accent: #6c5ce7;
    --accent-2: #00cec9;
    --danger: #f87171;
    --ok: #34d399;
    --border: rgba(255, 255, 255, 0.08);
    --admin-accent: #f59e0b;
}

:root[data-theme="light"] {
    color-scheme: light;
    --bg: #f5f7fb;
    --card: #ffffff;
    --text: #172033;
    --muted: #667085;
    --border: #d9e1ef;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
    background: radial-gradient(ellipse at top, #151b30 0%, var(--bg) 55%);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.5;
}

:root[data-theme="light"] body {
    background: radial-gradient(ellipse at top, #e8eef7 0%, var(--bg) 55%);
}

:root[data-theme="light"] body.auth-admin {
    background: radial-gradient(ellipse at top, #fff7ed 0%, #f5f7fb 55%);
}

:root[data-theme="light"] .auth-field input {
    background: #ffffff;
    color: var(--text);
}

body.auth-admin {
    background: radial-gradient(ellipse at top, #1a1520 0%, #0a0e17 50%, #05070d 100%);
}

.auth-shell {
    max-width: 440px;
    margin: 0 auto;
    padding: 2rem 1rem 3rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.auth-header { text-align: center; margin-bottom: 1.5rem; }

.auth-logo {
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

body.auth-admin .auth-logo {
    background: linear-gradient(135deg, var(--admin-accent), #ef4444);
    -webkit-background-clip: text;
    background-clip: text;
}

.auth-badge {
    display: inline-block;
    margin-top: 0.5rem;
    padding: 0.2rem 0.65rem;
    border-radius: 999px;
    font-size: 0.75rem;
    color: #c8c0ff;
    background: rgba(108, 92, 231, 0.18);
    border: 1px solid rgba(108, 92, 231, 0.35);
}

body.auth-admin .auth-badge {
    color: #fcd9a0;
    background: rgba(245, 158, 11, 0.12);
    border-color: rgba(245, 158, 11, 0.35);
}

.auth-subtitle { color: var(--muted); margin: 0.5rem 0 0; font-size: 0.9rem; }

.auth-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 1.75rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
}

body.auth-admin .auth-card {
    border-color: rgba(245, 158, 11, 0.15);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(245, 158, 11, 0.06);
}

.auth-card h1 {
    margin: 0 0 0.35rem;
    font-size: 1.35rem;
}

.auth-lead { color: var(--muted); margin: 0 0 1.25rem; font-size: 0.92rem; }

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

.auth-alert {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.auth-alert-error {
    background: rgba(248, 113, 113, 0.12);
    border: 1px solid rgba(248, 113, 113, 0.35);
    color: #fecaca;
}

.auth-alert-success {
    background: rgba(52, 211, 153, 0.1);
    border: 1px solid rgba(52, 211, 153, 0.35);
    color: #a7f3d0;
}

.auth-field { margin-bottom: 1rem; }

.auth-field label {
    display: block;
    margin-bottom: 0.35rem;
    font-size: 0.85rem;
    color: var(--muted);
}

.auth-field input {
    width: 100%;
    padding: 0.7rem 0.85rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: rgba(0, 0, 0, 0.25);
    color: var(--text);
    font-size: 1rem;
}

.auth-field input:focus {
    outline: none;
    border-color: rgba(108, 92, 231, 0.6);
    box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.15);
}

body.auth-admin .auth-field input:focus {
    border-color: rgba(245, 158, 11, 0.55);
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.12);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 0.75rem 1rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), #5a4bd1);
    color: #fff;
}

body.auth-admin .btn-primary {
    background: linear-gradient(135deg, var(--admin-accent), #d97706);
    color: #111;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text);
    border: 1px solid var(--border);
    margin-top: 0.75rem;
}

.auth-links {
    margin-top: 1.25rem;
    text-align: center;
    font-size: 0.88rem;
}

.auth-links a {
    color: #c8c0ff;
    text-decoration: none;
}

body.auth-admin .auth-links a { color: #fcd9a0; }

.auth-links a:hover { text-decoration: underline; }

:root[data-theme="light"] .auth-card {
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.1);
}

:root[data-theme="light"] .auth-field input {
    background: #ffffff;
    color: var(--text);
}

:root[data-theme="light"] .btn-secondary {
    background: #f8fafc;
}

:root[data-theme="light"] .auth-links a {
    color: var(--accent);
}

.auth-footer {
    margin-top: 1.5rem;
    text-align: center;
    color: var(--muted);
    font-size: 0.8rem;
}

.auth-gate-line {
    height: 2px;
    width: 48px;
    margin: 0.75rem auto 0;
    background: linear-gradient(90deg, transparent, var(--admin-accent), transparent);
    border-radius: 2px;
}

@media (max-width: 480px) {
    .auth-shell { padding: 1.25rem 0.85rem 2rem; }
    .auth-card { padding: 1.25rem; }
}