:root {
    --login-bg-1: #0d1117;
    --login-bg-2: #161b22;
    --login-surface: #1f2733;
    --login-border: #2f3a4d;
    --login-text: #e6edf3;
    --login-muted: #8b949e;
    --login-accent: #2f81f7;
    --login-accent-hover: #4b95ff;
    --login-error-bg: #321b1e;
    --login-error-border: #a94442;
    --login-error-text: #ffb3ae;
}

body {
    min-height: 100vh;
    background:
        radial-gradient(1000px 500px at -10% 10%, rgba(47, 129, 247, 0.16), transparent 40%),
        radial-gradient(900px 500px at 110% 90%, rgba(35, 134, 54, 0.12), transparent 40%),
        linear-gradient(130deg, var(--login-bg-1), var(--login-bg-2));
}

.login-page {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent 45%), var(--login-surface);
    border: 1px solid var(--login-border);
    border-radius: 14px;
    padding: 28px 24px 22px;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
}

.login-header {
    text-align: center;
    margin-bottom: 18px;
}

.login-logo {
    font-size: 34px;
    margin-bottom: 8px;
}

.login-header h1 {
    font-size: 24px;
    margin-bottom: 4px;
}

.login-header p {
    color: var(--login-muted);
    font-size: 14px;
}

.login-form {
    display: grid;
    gap: 10px;
}

.login-form label {
    font-size: 13px;
    color: var(--login-muted);
}

.login-form input {
    width: 100%;
    border: 1px solid var(--login-border);
    background: #0f1621;
    color: var(--login-text);
    border-radius: 9px;
    padding: 11px 12px;
    font-size: 14px;
}

.login-form input:focus {
    outline: none;
    border-color: var(--login-accent);
}

.login-form button {
    margin-top: 8px;
    border: none;
    border-radius: 9px;
    background: var(--login-accent);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    padding: 11px 12px;
    cursor: pointer;
    transition: background 0.15s ease;
}

.login-form button:hover {
    background: var(--login-accent-hover);
}

.login-form button:disabled {
    opacity: 0.7;
    cursor: wait;
}

.login-error {
    min-height: 20px;
    font-size: 13px;
    margin-top: 4px;
}

.login-error.active {
    background: var(--login-error-bg);
    border: 1px solid var(--login-error-border);
    color: var(--login-error-text);
    border-radius: 8px;
    padding: 8px 10px;
}