:root {
    --card: rgba(10, 14, 22, .78);
    --line: rgba(255, 255, 255, .10);
    --text: #eef2ff;
    --muted: #b7c3e2;
    --brand: #7dd3fc;

    --btn: rgba(125, 211, 252, .18);
    --btnHover: rgba(125, 211, 252, .30);

    --danger: rgba(255, 90, 106, .22);
    --dangerLine: rgba(255, 90, 106, .40);

    --radius: 16px;
    --radiusSm: 12px;
    --shadow: 0 10px 30px rgba(0, 0, 0, .35);
}
    box-sizing: border-box;
}

html,
body {
    height: 100%;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial;
    color: var(--text);
    background:
        linear-gradient(to bottom, rgba(0, 0, 0, .62), rgba(0, 0, 0, .86)),
        url("./img/site-bg.png") center/cover fixed no-repeat;
}

a {
    color: inherit;
    text-decoration: none;
}

.wrap {
    max-width: 1100px;
    margin: 0 auto;
    padding: 16px;
}
.admin-topbar {
    position: sticky;
    top: 0;
    z-index: 50;

    background:
        linear-gradient(to bottom, rgba(0, 0, 0, .55), rgba(0, 0, 0, .82)),
        url("./img/header-bg.jpg") center/cover no-repeat;
    border-bottom: 1px solid var(--line);

    backdrop-filter: blur(10px);
}

.admin-topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.admin-brand {
    font-weight: 950;
    letter-spacing: .35px;
    text-transform: uppercase;
    white-space: nowrap;
}

.admin-nav {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: flex-end;
    align-items: center;
}

.admin-nav a {
    color: var(--text);
    padding: 8px 10px;
    border-radius: var(--radiusSm);
    border: 1px solid transparent;
    background: transparent;
    transition: background .15s ease, border-color .15s ease, transform .05s ease;
    font-weight: 650;
    font-size: 14px;
}

.admin-nav a:hover {
    background: rgba(255, 255, 255, .08);
    border-color: var(--line);
}

.admin-nav a:active {
    transform: translateY(1px);
}

.admin-nav .cta {
    background: var(--btn);
    border-color: var(--line);
}

.admin-nav .cta:hover {
    background: var(--btnHover);
}
.admin-nav-toggle {
    display: none;
    border: 1px solid var(--line);
    background: rgba(0, 0, 0, .20);
    color: var(--text);
    border-radius: var(--radiusSm);
    padding: 8px 10px;
    cursor: pointer;
    font-weight: 700;
}

@media (max-width: 860px) {
    .admin-topbar-inner {
        align-items: flex-start;
    }

    .admin-nav-toggle {
        display: inline-flex;
    }

    .admin-nav {
        display: none;
        width: 100%;
        margin-top: 10px;
        padding: 10px;
        border: 1px solid var(--line);
        border-radius: var(--radius);
        background: rgba(0, 0, 0, .25);
    }

    body.nav-open .admin-nav {
        display: flex;
    }
}
.card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 16px;
    box-shadow: var(--shadow);
}

h1,
h2,
h3 {
    margin: 0 0 10px;
    letter-spacing: .2px;
}

.muted {
    color: var(--muted);
}

.small {
    font-size: 12px;
    color: var(--muted);
}

hr.sep {
    border: 0;
    border-top: 1px solid var(--line);
    margin: 14px 0;
}
label {
    display: block;
    margin: 10px 0 6px;
    color: var(--muted);
    font-size: 13px;
}

input,
textarea,
select {
    width: 100%;
    padding: 10px 12px;
    border-radius: var(--radiusSm);
    border: 1px solid var(--line);
    background: rgba(0, 0, 0, .40);
    color: var(--text);
    outline: none;
}

select {
    appearance: none;
}

textarea {
    resize: vertical;
    min-height: 140px;
}
input[type="range"] {
    padding: 0;
    height: 28px;
}
input[type="file"] {
    padding: 10px;
    background: rgba(0, 0, 0, .28);
}
.grid {
    display: grid;
    gap: 16px;
    grid-template-columns: 1fr;
}

@media (min-width: 980px) {
    .grid {
        grid-template-columns: 1fr 1fr;
    }
}

.row {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

.row>* {
    flex: 1;
}

.row .tight {
    flex: 0 0 auto;
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 14px;
    border-radius: var(--radiusSm);
    border: 1px solid var(--line);
    background: var(--btn);
    color: var(--text);
    cursor: pointer;
    font-weight: 700;
    transition: background .15s ease, transform .05s ease;
    text-decoration: none;
}

.btn:hover {
    background: var(--btnHover);
}

.btn:active {
    transform: translateY(1px);
}

.btn.ghost {
    background: transparent;
}

.btn.small {
    padding: 7px 10px;
    font-size: 13px;
    border-radius: 10px;
}

.btn.danger {
    background: var(--danger);
    border-color: var(--dangerLine);
}
.alert {
    background: rgba(255, 90, 106, .12);
    border: 1px solid rgba(255, 90, 106, .40);
    padding: 10px 12px;
    border-radius: var(--radiusSm);
}

.alert.ok {
    background: rgba(125, 211, 252, .10);
    border-color: rgba(125, 211, 252, .25);
}
.table {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.tr {
    display: grid;
    grid-template-columns: 1.4fr 1fr .6fr .5fr .8fr .6fr;
    gap: 10px;
    align-items: center;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: rgba(0, 0, 0, .22);
    overflow: hidden;
}

.tr.th {
    opacity: .85;
    font-size: 13px;
}

@media (max-width: 860px) {
    .tr {
        grid-template-columns: 1fr;
    }
}
code {
    background: rgba(0, 0, 0, .35);
    border: 1px solid var(--line);
    padding: 2px 6px;
    border-radius: 10px;
    color: var(--text);
}
.admin-login {
    min-height: calc(100vh - 40px);
    display: flex;
    align-items: center;
    justify-content: center;
}

.admin-login .card {
    max-width: 420px;
    width: 100%;
}
.media-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

@media (min-width: 980px) {
    .media-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.media-item img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    border-radius: 12px;
    border: 1px solid var(--line);
}
.preview-box {
    border: 1px solid var(--line);
    border-radius: 14px;
    overflow: hidden;
    background: rgba(0, 0, 0, .22);
}

.preview-box img {
    display: block;
    width: 100%;
    height: 180px;
    object-fit: cover;
}