:root {
    --login-navy: #1a3358;
    --login-navy-deep: #12243d;
    --login-blue: #2f5f9a;
    --login-ink: #1c2430;
    --login-muted: #5c6b7a;
    --login-line: rgba(26, 51, 88, 0.14);
    --login-surface: rgba(255, 255, 255, 0.88);
    --login-error: #b42318;
    --login-font-display: "Libre Baskerville", "Palatino Linotype", "Book Antiqua", serif;
    --login-font-body: "Manrope", "Segoe UI", sans-serif;
}

* {
    box-sizing: border-box;
}

html,
body.login-page {
    height: 100%;
    margin: 0;
}

body.login-page {
    font-family: var(--login-font-body);
    color: var(--login-ink);
    background:
        radial-gradient(1200px 600px at 12% 18%, rgba(47, 95, 154, 0.22), transparent 60%),
        radial-gradient(900px 500px at 88% 82%, rgba(26, 51, 88, 0.16), transparent 55%),
        linear-gradient(160deg, #e7eef7 0%, #f4f7fb 45%, #dfe8f3 100%);
    overflow-x: hidden;
}

body.login-page::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(26, 51, 88, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(26, 51, 88, 0.035) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(ellipse at center, black 35%, transparent 78%);
    animation: loginGridDrift 28s linear infinite;
}

.login-shell {
    min-height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px 20px;
    position: relative;
    z-index: 1;
}

.login-stage {
    width: min(420px, 100%);
    text-align: center;
    animation: loginRise 0.7s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.login-brand {
    margin-bottom: 28px;
    animation: loginFade 0.9s ease both;
}

.login-logo {
    display: block;
    width: min(320px, 88vw);
    height: auto;
    margin: 0 auto;
    image-rendering: auto;
}

.login-mark-lead {
    margin: 14px 0 0;
    font-size: 0.98rem;
    color: var(--login-muted);
    line-height: 1.45;
}

.login-panel {
    margin-top: 8px;
    padding: 28px 26px 24px;
    background: var(--login-surface);
    border: 1px solid var(--login-line);
    border-radius: 18px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 18px 40px rgba(18, 36, 61, 0.08);
    text-align: left;
    animation: loginRise 0.85s 0.08s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.login-error {
    margin: 0 0 16px;
    padding: 10px 12px;
    border-radius: 10px;
    background: rgba(180, 35, 24, 0.08);
    border: 1px solid rgba(180, 35, 24, 0.2);
    color: var(--login-error);
    font-size: 0.9rem;
}

.login-field {
    margin-bottom: 16px;
}

.login-field label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--login-navy);
}

.login-field input[type="text"],
.login-field input[type="password"] {
    width: 100%;
    height: 46px;
    padding: 0 14px;
    border: 1px solid var(--login-line);
    border-radius: 12px;
    background: #fff;
    color: var(--login-ink);
    font-family: inherit;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.login-field input[type="text"]:focus,
.login-field input[type="password"]:focus {
    border-color: var(--login-blue);
    box-shadow: 0 0 0 3px rgba(47, 95, 154, 0.16);
    transform: translateY(-1px);
}

.login-remember {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 4px 0 20px;
    font-size: 0.9rem;
    color: var(--login-muted);
    user-select: none;
}

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

.login-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.login-submit {
    width: 100%;
    height: 48px;
    border: 0;
    border-radius: 12px;
    background: linear-gradient(180deg, var(--login-blue), var(--login-navy));
    color: #fff;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.01em;
    cursor: pointer;
    transition: transform 0.18s ease, box-shadow 0.18s ease, filter 0.18s ease;
    box-shadow: 0 10px 22px rgba(26, 51, 88, 0.22);
}

.login-submit:hover {
    transform: translateY(-1px);
    filter: brightness(1.05);
}

.login-submit:active {
    transform: translateY(0);
}

.login-recover {
    width: 100%;
    height: 42px;
    border: 1px solid var(--login-line);
    border-radius: 12px;
    background: transparent;
    color: var(--login-muted);
    font-family: inherit;
    font-size: 0.92rem;
    cursor: not-allowed;
    opacity: 0.55;
}

.login-footnote {
    margin: 18px 0 0;
    text-align: center;
    font-size: 0.78rem;
    color: rgba(92, 107, 122, 0.9);
}

@keyframes loginRise {
    from {
        opacity: 0;
        transform: translateY(18px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes loginFade {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes loginGridDrift {
    from { transform: translate3d(0, 0, 0); }
    to { transform: translate3d(0, -48px, 0); }
}

@media (max-width: 480px) {
    .login-shell {
        padding: 24px 14px;
        align-items: flex-start;
        padding-top: 12vh;
    }

    .login-panel {
        padding: 22px 18px 18px;
        border-radius: 16px;
    }
}

@media (prefers-reduced-motion: reduce) {
    body.login-page::before,
    .login-stage,
    .login-brand,
    .login-panel,
    .login-field input,
    .login-submit {
        animation: none !important;
        transition: none !important;
    }
}