:root {
    --admin-bg: #f3f7fb;
    --admin-panel: #ffffff;
    --admin-text: #13263c;
    --admin-muted: #6f8399;
    --admin-border: rgba(18, 38, 60, 0.08);
    --admin-brand: #4cd4ff;
    --admin-dark: #0a1624;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Plus Jakarta Sans", sans-serif;
    color: var(--admin-text);
    background: var(--admin-bg);
}

.admin-shell {
    min-height: 100vh;
}

.admin-sidebar {
    background: linear-gradient(180deg, #091523, #101d30);
    color: #fff;
    padding: 1.4rem;
}

.admin-brand,
.login-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.9rem;
    color: inherit;
    text-decoration: none;
}

.admin-brand__icon,
.login-brand__icon {
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--admin-brand), #89f3ce);
    color: #061220;
    font-weight: 800;
}

.admin-brand strong,
.login-brand strong,
.admin-topbar h1,
.panel-card h2,
.login-card h1 {
    font-family: "Space Grotesk", sans-serif;
}

.admin-brand small,
.login-brand small {
    display: block;
    opacity: 0.7;
}

.admin-brand {
    line-height: 0;
}

.admin-brand__logo {
    display: block;
    width: auto;
    height: 54px;
    max-width: 188px;
    object-fit: contain;
}

.admin-nav {
    display: grid;
    gap: 0.5rem;
    margin-top: 2rem;
}

.admin-nav a {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.85rem 1rem;
    border-radius: 16px;
    color: rgba(255, 255, 255, 0.76);
    text-decoration: none;
}

.admin-nav a.active,
.admin-nav a:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
}

.admin-main {
    padding: 1rem;
}

.admin-topbar {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 0.5rem 0 1.25rem;
}

.admin-user {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.85);
    border: 1px solid var(--admin-border);
    border-radius: 20px;
    padding: 0.9rem 1rem;
}

.admin-user__meta span,
.message-item small,
.login-card p,
.login-note span {
    color: var(--admin-muted);
}

.panel-card,
.stat-card,
.login-card {
    background: var(--admin-panel);
    border: 1px solid var(--admin-border);
    border-radius: 26px;
    padding: 1.4rem;
    box-shadow: 0 20px 60px rgba(14, 24, 39, 0.08);
}

.panel-card__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.stat-card span {
    color: var(--admin-muted);
    display: block;
    margin-bottom: 0.45rem;
}

.stat-card strong {
    font-size: 2rem;
    line-height: 1;
}

.message-list {
    display: grid;
    gap: 1rem;
}

.message-item {
    padding: 1rem;
    border-radius: 18px;
    background: #f7fbff;
    border: 1px solid rgba(18, 38, 60, 0.06);
}

.message-item.compact {
    padding: 0.9rem 1rem;
}

.message-item__top {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.35rem;
}

.current-image-preview {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.current-image-preview img {
    width: 100%;
    max-width: 320px;
    border-radius: 20px;
    border: 1px solid var(--admin-border);
}

.login-body {
    min-height: 100vh;
    display: grid;
    place-items: center;
    background:
        radial-gradient(circle at top left, rgba(76, 212, 255, 0.18), transparent 22%),
        radial-gradient(circle at bottom right, rgba(137, 243, 206, 0.18), transparent 18%),
        #eff5fb;
}

.login-wrapper {
    width: min(100%, 480px);
    padding: 1.2rem;
}

.login-card {
    display: grid;
    gap: 1rem;
}

.login-note {
    display: grid;
    gap: 0.2rem;
    padding: 1rem;
    border-radius: 18px;
    background: #f6fbff;
}

.login-back {
    color: var(--admin-dark);
    text-decoration: none;
    font-weight: 600;
}

@media (min-width: 992px) {
    .admin-shell {
        display: grid;
        grid-template-columns: 280px 1fr;
    }

    .admin-sidebar {
        min-height: 100vh;
        position: sticky;
        top: 0;
    }

    .admin-main {
        padding: 2rem;
    }

    .admin-topbar {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }

    .admin-user {
        min-width: 300px;
    }
}