:root {
    --login-primary: #3b82f6;
    --login-primary-strong: #2563eb;
    --login-accent: #10b981;
    --login-text: #0f172a;
    --login-muted: #64748b;
    --login-border: rgba(148, 163, 184, 0.2);
    --login-surface: rgba(255, 255, 255, 0.86);
    --login-shadow: 0 30px 80px rgba(15, 23, 42, 0.18);
}

html,
body {
    min-height: 100%;
}

body.admin-login-page {
    color: var(--login-text);
    background:
        radial-gradient(circle at 15% 15%, rgba(59, 130, 246, 0.2), transparent 28%),
        radial-gradient(circle at 85% 25%, rgba(16, 185, 129, 0.16), transparent 24%),
        linear-gradient(180deg, #f8fbff 0%, #eef4fb 100%);
    background-attachment: fixed;
}

body.admin-login-page a {
    color: var(--login-primary-strong);
}

.login-stage {
    position: relative;
    min-height: 100vh;
    overflow: hidden;
    padding: 56px 0;
}

.login-stage__backdrop {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(120deg, rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0.08)),
        radial-gradient(circle at 70% 30%, rgba(59, 130, 246, 0.12), transparent 20%),
        radial-gradient(circle at 25% 75%, rgba(16, 185, 129, 0.12), transparent 18%);
    pointer-events: none;
}

.login-stage__container {
    position: relative;
    z-index: 1;
}

.login-shell {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(360px, 520px);
    gap: 24px;
    align-items: stretch;
}

.login-hero,
.login-card {
    border: 1px solid var(--login-border);
    background: var(--login-surface);
    box-shadow: var(--login-shadow);
    backdrop-filter: blur(20px);
}

.login-hero {
    padding: 42px;
    border-radius: 34px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 640px;
    position: relative;
    overflow: hidden;
}

.login-hero::after {
    content: '';
    position: absolute;
    right: -80px;
    bottom: -80px;
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.18), transparent 62%);
}

.login-branding {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    position: relative;
    z-index: 1;
    text-align: center;
}

.login-branding__mark-shell {
    width: 86px;
    height: 86px;
    border-radius: 26px;
    padding: 6px;
    background:
        linear-gradient(145deg, rgba(255, 255, 255, 0.95), rgba(235, 243, 255, 0.82));
    border: 1px solid rgba(148, 163, 184, 0.22);
    box-shadow:
        0 18px 34px rgba(15, 23, 42, 0.12),
        inset 0 1px 0 rgba(255, 255, 255, 0.95),
        inset 0 -10px 18px rgba(59, 130, 246, 0.08);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: logoFloat 4.2s ease-in-out infinite;
    transform-style: preserve-3d;
}

.login-branding__mark-shell::before {
    content: '';
    position: absolute;
    inset: 8px;
    border-radius: 20px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.2), rgba(59, 130, 246, 0.05));
    pointer-events: none;
}

.login-branding__mark {
    width: 74px;
    height: 74px;
    border-radius: 18px;
    object-fit: contain;
    background: #fff;
    padding: 2px;
    box-shadow:
        0 10px 20px rgba(15, 23, 42, 0.10),
        0 0 0 1px rgba(255, 255, 255, 0.6) inset;
    flex: 0 0 auto;
    box-sizing: border-box;
    position: relative;
    z-index: 1;
}

.login-branding__eyebrow {
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--login-muted);
    margin-bottom: 0;
}

.login-branding__title {
    margin: 0;
    font-size: clamp(28px, 2.6vw, 42px);
    line-height: 1.06;
    font-weight: 800;
    letter-spacing: -0.04em;
    color: var(--login-text);
    white-space: nowrap;
}

.login-hero__copy {
    margin: 36px auto 0;
    max-width: 560px;
    font-size: 17px;
    line-height: 1.9;
    color: var(--login-muted);
    position: relative;
    z-index: 1;
    text-align: center;
}

.login-hero__stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin-top: 32px;
    position: relative;
    z-index: 1;
}

.login-stat {
    padding: 16px 14px 18px;
    border-radius: 20px;
    border: 1px solid rgba(148, 163, 184, 0.18);
    background: rgba(255, 255, 255, 0.72);
    text-align: center;
}

.login-stat__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    margin-bottom: 10px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.12), rgba(16, 185, 129, 0.12));
    color: var(--login-primary-strong);
    font-size: 15px;
}

.login-stat strong {
    display: block;
    margin-bottom: 8px;
    font-size: 15px;
    font-weight: 800;
    color: var(--login-primary-strong);
}

.login-stat span {
    display: block;
    color: var(--login-muted);
    font-size: 12px;
    line-height: 1.5;
}

.login-card {
    padding: 28px;
    border-radius: 34px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 640px;
}

.login-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 22px;
}

.login-card__tag {
    display: inline-flex;
    align-items: center;
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(59, 130, 246, 0.08);
    color: var(--login-primary-strong);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.login-card__tip {
    color: var(--login-muted);
    font-size: 13px;
    font-weight: 600;
}

.login-form {
    position: relative;
    z-index: 1;
}

#login-form {
    margin-top: 0;
}

.login-input-group {
    width: 100%;
    margin-bottom: 16px;
}

.login-input-group .input-group-addon {
    background: #f8fafc;
    border-color: rgba(148, 163, 184, 0.26);
    color: var(--login-muted);
    border-radius: 16px 0 0 16px;
    padding-left: 16px;
    padding-right: 16px;
}

.login-input-group .form-control {
    height: 56px;
    border-color: rgba(148, 163, 184, 0.26);
    box-shadow: none;
    border-radius: 0 16px 16px 0;
    padding-left: 14px;
    font-size: 15px;
}

.login-input-group .form-control:focus {
    border-color: rgba(59, 130, 246, 0.6);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.08);
}

.login-input-group--captcha .form-control {
    border-radius: 0;
}

.login-captcha__addon {
    padding: 0 !important;
    border-left: 0;
    border-radius: 0 16px 16px 0 !important;
    overflow: hidden;
    background: #fff;
}

.login-captcha__addon img {
    display: block;
}

.login-form__meta {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    margin: 8px 0 18px;
}

.login-check {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin: 0;
    color: var(--login-muted);
    font-weight: 600;
    cursor: pointer;
}

.login-check input {
    margin: 0;
}

.login-submit {
    height: 54px;
    border: 0;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--login-primary), var(--login-primary-strong));
    box-shadow: 0 18px 30px rgba(59, 130, 246, 0.24);
    font-weight: 700;
    letter-spacing: 0.03em;
}

.login-submit:hover,
.login-submit:focus {
    background: linear-gradient(135deg, var(--login-primary-strong), #1d4ed8);
}

.login-footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin-top: 20px;
    font-size: 12px;
    color: var(--login-muted);
    text-align: center;
}

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

.login-footer-links a:hover,
.login-footer-links a:focus {
    color: var(--login-primary-strong);
}

@keyframes logoFloat {
    0%,
    100% {
        transform: translateY(0) rotate(-1deg);
    }
    50% {
        transform: translateY(-8px) rotate(1deg);
    }
}

#errtips {
    margin-bottom: 14px;
}

@media (max-width: 991px) {
    .login-shell {
        grid-template-columns: 1fr;
    }

    .login-hero {
        min-height: auto;
    }

    .login-card {
        min-height: auto;
    }

    .login-hero__stats {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 767px) {
    .login-stage {
        padding: 18px 0 28px;
    }

    .login-hero,
    .login-card {
        border-radius: 24px;
        padding: 20px;
    }

    .login-branding__title {
        font-size: 28px;
        white-space: normal;
    }

    .login-hero__copy {
        font-size: 16px;
        margin-top: 28px;
    }

    .login-branding__mark {
        width: 52px;
        height: 52px;
        border-radius: 18px;
        padding: 1px;
    }

    .login-branding__mark-shell {
        width: 64px;
        height: 64px;
        border-radius: 20px;
        padding: 4px;
    }

    .login-hero__stats {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .login-input-group .form-control {
        height: 52px;
    }

    .login-submit {
        height: 50px;
    }
}