/**
 * Halaman login — layout split, proporsional di desktop & mobile
 */
body.login-page {
    min-height: 100vh;
    min-height: 100dvh;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(1rem, 4vw, 2rem);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background:
        radial-gradient(ellipse 80% 60% at 20% 10%, rgba(99, 102, 241, 0.35), transparent 50%),
        radial-gradient(ellipse 70% 50% at 90% 90%, rgba(16, 185, 129, 0.2), transparent 45%),
        linear-gradient(145deg, #0f172a 0%, #1e293b 42%, #312e81 100%);
}

.login-shell {
    display: grid;
    grid-template-columns: 1fr;
    width: 100%;
    max-width: 440px;
    background: var(--card-bg);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow:
        0 4px 6px rgba(0, 0, 0, 0.05),
        0 24px 48px rgba(0, 0, 0, 0.28);
}

@media (min-width: 768px) {
    .login-shell {
        grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
        max-width: min(920px, 94vw);
        min-height: min(520px, 88dvh);
    }
}

/* —— Panel brand —— */
.login-panel--brand {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(1.75rem, 5vw, 2.5rem) clamp(1.25rem, 4vw, 2rem);
    background: linear-gradient(160deg, var(--sidebar) 0%, #1e3a5f 55%, var(--primary) 100%);
    color: #fff;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.login-panel--brand::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 30% 20%, rgba(255, 255, 255, 0.12) 0%, transparent 45%),
        radial-gradient(circle at 80% 80%, rgba(99, 102, 241, 0.25) 0%, transparent 40%);
    pointer-events: none;
}

.login-brand-inner {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 340px;
    margin: 0 auto;
}

.login-logo-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    margin: 0 auto clamp(1.25rem, 3vw, 1.75rem);
}

.login-logo {
    display: block;
    width: clamp(140px, 32vw, 200px);
    height: clamp(140px, 32vw, 200px);
    max-width: 200px;
    max-height: 200px;
    object-fit: contain;
    filter: drop-shadow(0 6px 20px rgba(0, 0, 0, 0.28));
}

.login-brand-title {
    margin: 0 0 0.35rem;
    font-size: clamp(1.25rem, 3.5vw, 1.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.login-brand-sub {
    margin: 0;
    font-size: clamp(0.8rem, 2.2vw, 0.9rem);
    font-weight: 500;
    opacity: 0.88;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.login-brand-features {
    margin: clamp(1.25rem, 3vw, 1.75rem) 0 0;
    padding: 0;
    list-style: none;
    text-align: left;
    font-size: 0.8125rem;
    opacity: 0.92;
}

.login-brand-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.login-brand-features i {
    width: 1.125rem;
    text-align: center;
    opacity: 0.9;
}

@media (max-width: 767.98px) {
    .login-brand-features {
        display: none;
    }

    .login-panel--brand {
        padding: 1.75rem 1.25rem 1.5rem;
    }

    .login-logo-wrap {
        margin-bottom: 0;
    }

    .login-logo {
        width: clamp(150px, 42vw, 180px);
        height: clamp(150px, 42vw, 180px);
    }
}

/* —— Panel form —— */
.login-panel--form {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(1.5rem, 4vw, 2.25rem) clamp(1.35rem, 4vw, 2rem);
}

.login-form-inner {
    width: 100%;
    max-width: 360px;
    margin: 0 auto;
}

.login-form-heading {
    margin: 0 0 0.25rem;
    font-size: clamp(1.35rem, 4vw, 1.5rem);
    font-weight: 700;
    color: inherit;
    letter-spacing: -0.02em;
}

.login-form-hint {
    margin: 0 0 clamp(1.25rem, 3vw, 1.5rem);
    font-size: 0.875rem;
    color: #64748b;
    line-height: 1.45;
}

[data-bs-theme="dark"] .login-form-hint {
    color: #94a3b8;
}

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

.login-field label {
    display: block;
    margin-bottom: 0.4rem;
    font-size: 0.8125rem;
    font-weight: 600;
    color: #374151;
}

[data-bs-theme="dark"] .login-field label {
    color: #e5e7eb;
}

.login-input-wrap {
    display: flex;
    align-items: stretch;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    background: #f8fafc;
    transition: border-color 0.2s, box-shadow 0.2s;
    overflow: hidden;
}

[data-bs-theme="dark"] .login-input-wrap {
    background: #111827;
}

.login-input-wrap:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.18);
}

.login-input-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    flex-shrink: 0;
    color: #94a3b8;
    font-size: 0.9rem;
    border-right: 1px solid var(--border-color);
    background: transparent;
}

.login-input-wrap .form-control {
    flex: 1;
    min-width: 0;
    border: none;
    border-radius: 0;
    padding: 0.65rem 0.85rem;
    font-size: 0.9375rem;
    background: transparent;
    box-shadow: none !important;
}

.login-input-wrap .form-control:focus {
    outline: none;
}

.login-toggle-pw {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    flex-shrink: 0;
    border: none;
    background: transparent;
    color: #94a3b8;
    cursor: pointer;
    transition: color 0.15s;
}

.login-toggle-pw:hover {
    color: var(--primary);
}

.login-btn {
    width: 100%;
    margin-top: 0.25rem;
    padding: 0.7rem 1rem;
    font-size: 0.9375rem;
    font-weight: 600;
    border: none;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary) 0%, #3730a3 100%);
    color: #fff;
    transition: transform 0.15s, box-shadow 0.2s, filter 0.2s;
}

.login-btn:hover:not(:disabled) {
    filter: brightness(1.06);
    box-shadow: 0 8px 20px rgba(67, 97, 238, 0.35);
    transform: translateY(-1px);
}

.login-btn:active:not(:disabled) {
    transform: translateY(0);
}

.login-btn:disabled {
    opacity: 0.75;
    cursor: not-allowed;
}

.login-footer-note {
    margin: 1.25rem 0 0;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.75rem;
    color: #94a3b8;
    text-align: center;
    line-height: 1.4;
}

#alertMessage:empty {
    display: none;
}

#alertMessage .alert {
    font-size: 0.8125rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    padding: 0.65rem 0.85rem;
}