:root {
    --login-bg-1: #0f172a;
    --login-bg-2: #1e3a5f;
    --login-accent: #3b82f6;
    --login-accent-hover: #2563eb;
    --login-card: #ffffff;
    --login-text: #0f172a;
    --login-muted: #64748b;
    --login-error-bg: #fef2f2;
    --login-error-text: #b91c1c;
    --font: "DM Sans", system-ui, sans-serif;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body.login-page {
    margin: 0;
    min-height: 100vh;
    font-family: var(--font);
    color: var(--login-text);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.login-page__bg {
    position: fixed;
    inset: 0;
    background: linear-gradient(135deg, var(--login-bg-1) 0%, var(--login-bg-2) 50%, #0c4a6e 100%);
    z-index: -1;
}

.login-page__bg::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 50% at 20% 40%, rgba(59, 130, 246, 0.25), transparent),
        radial-gradient(ellipse 60% 40% at 80% 70%, rgba(14, 165, 233, 0.15), transparent);
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: var(--login-card);
    border-radius: 16px;
    box-shadow:
        0 25px 50px -12px rgba(0, 0, 0, 0.35),
        0 0 0 1px rgba(255, 255, 255, 0.08);
    padding: 2.25rem 2rem 2rem;
    animation: login-in 0.45s ease-out;
}

@keyframes login-in {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-card__header {
    text-align: center;
    margin-bottom: 1.75rem;
}

.login-card__logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: linear-gradient(145deg, var(--login-accent), #0ea5e9);
    color: #fff;
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.login-card__header h1 {
    margin: 0 0 0.35rem;
    font-size: 1.35rem;
    font-weight: 700;
    line-height: 1.3;
}

.login-card__header p {
    margin: 0;
    color: var(--login-muted);
    font-size: 0.95rem;
}

.login-alert {
    background: var(--login-error-bg);
    color: var(--login-error-text);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    margin-bottom: 1.25rem;
}

.login-form__field {
    display: block;
    margin-bottom: 1.15rem;
}

.login-form__field span {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 0.4rem;
    color: var(--login-muted);
}

.login-form__field input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    font: inherit;
    font-size: 1rem;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.login-form__field input:focus {
    outline: none;
    border-color: var(--login-accent);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.login-form__submit {
    width: 100%;
    margin-top: 0.5rem;
    padding: 0.85rem 1rem;
    border: none;
    border-radius: 10px;
    background: var(--login-accent);
    color: #fff;
    font: inherit;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s, transform 0.1s;
}

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

.login-form__submit:active {
    transform: scale(0.99);
}

.login-card__footer {
    text-align: center;
    margin: 1.5rem 0 0;
    font-size: 0.875rem;
}

.login-card__footer a {
    color: var(--login-muted);
    text-decoration: none;
}

.login-card__footer a:hover {
    color: var(--login-accent);
}