:root {
    --bg: #0a0f1f;
    --surface: #0f172b;
    --surface-2: #0b1224;
    --border: rgba(148, 163, 255, 0.25);
    --border-strong: rgba(226, 231, 255, 0.85);
    --text: #eef2ff;
    --text-muted: #a1accd;
    --primary: #6f82ff;
    --secondary: #5cc7ff;
    --danger: #f87171;
}

* {
    box-sizing: border-box;
}

body.auth-body {
    margin: 0;
    font-family: "Inter", system-ui, -apple-system, sans-serif;
    color: var(--text);
    background: radial-gradient(circle at 18% 12%, rgba(108, 124, 255, 0.3), transparent 45%),
        radial-gradient(circle at 80% 8%, rgba(88, 196, 255, 0.22), transparent 46%),
        radial-gradient(circle at 80% 80%, rgba(40, 90, 200, 0.15), transparent 50%),
        var(--bg);
    min-height: 100vh;
    display: grid;
    place-items: center;
}

.auth-shell {
    width: min(520px, 92vw);
    padding: 28px;
}

.auth-card {
    width: 100%;
    background: linear-gradient(180deg, rgba(18, 26, 48, 0.95), rgba(14, 20, 38, 0.95));
    border: 1px solid var(--border);
    border-radius: 22px;
    padding: 28px 30px;
    box-shadow: 0 26px 60px rgba(5, 8, 20, 0.55);
    display: grid;
    gap: 18px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 14px;
}

.brand-mark {
    width: 44px;
    height: 44px;
    border-radius: 15px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: grid;
    place-items: center;
    font-weight: 700;
    color: #0b1020;
    box-shadow: 0 10px 24px rgba(88, 196, 255, 0.25);
}

.brand-name {
    font-size: 18px;
    font-weight: 600;
}

.brand-sub {
    font-size: 12px;
    color: var(--text-muted);
}

.auth-form {
    display: grid;
    gap: 14px;
}

.field {
    display: grid;
    gap: 8px;
    font-size: 13px;
    color: var(--text-muted);
}

.field input {
    padding: 12px 14px;
    border-radius: 14px;
    border: 1px solid rgba(162, 176, 210, 0.35);
    background: var(--surface-2);
    color: var(--text);
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.field input:focus {
    border-color: var(--border-strong);
    box-shadow: 0 0 0 3px rgba(110, 130, 255, 0.22);
}

.field input::placeholder {
    color: rgba(161, 172, 205, 0.7);
}

.field input:-webkit-autofill {
    -webkit-text-fill-color: #0b1020;
    box-shadow: 0 0 0px 1000px #e9f0ff inset;
    border-color: rgba(200, 210, 255, 0.8);
}

.remember {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-muted);
}

.remember input {
    width: 16px;
    height: 16px;
    accent-color: var(--primary);
}

.btn {
    border: 1px solid var(--border);
    background: #0f1528;
    color: var(--text);
    padding: 12px 16px;
    border-radius: 14px;
    font-weight: 600;
    cursor: pointer;
}

.btn.primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #0b1020;
    border: none;
    box-shadow: 0 14px 26px rgba(96, 140, 255, 0.35);
}

.btn.full {
    width: 100%;
}

.error {
    color: var(--danger);
    font-size: 12px;
}

.hint {
    font-size: 12px;
    color: var(--text-muted);
    margin: 0;
}