:root {
    --bg: #0f1215;
    --panel: rgba(19, 25, 29, 0.86);
    --panel-strong: rgba(23, 31, 36, 0.96);
    --ink: #eef6f8;
    --muted: #91a2a8;
    --line: rgba(116, 231, 219, 0.18);
    --line-strong: rgba(116, 231, 219, 0.34);
    --primary: #46d9ff;
    --primary-dark: #17a7ce;
    --accent: #37e7a0;
    --warning: #f6c45f;
    --danger-bg: rgba(255, 87, 87, 0.12);
    --danger: #ff6b6b;
    --success-bg: rgba(55, 231, 160, 0.12);
    --success: #48e49e;
    --shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
    --glow: 0 0 0 1px rgba(70, 217, 255, 0.08), 0 18px 48px rgba(0, 0, 0, 0.28);
}

* {
    box-sizing: border-box;
}

body {
    position: relative;
    margin: 0;
    min-height: 100vh;
    color: var(--ink);
    background:
        linear-gradient(180deg, rgba(70, 217, 255, 0.11), transparent 34%),
        linear-gradient(135deg, rgba(55, 231, 160, 0.09), transparent 36%),
        linear-gradient(315deg, rgba(246, 196, 95, 0.06), transparent 42%),
        var(--bg);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
}

body::before {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    content: "";
    background-image:
        linear-gradient(rgba(116, 231, 219, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(116, 231, 219, 0.06) 1px, transparent 1px);
    background-size: 36px 36px;
    mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent 82%);
}

.topbar,
.shell {
    position: relative;
}

.shell {
    z-index: 1;
}

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

code {
    padding: 2px 6px;
    border-radius: 6px;
    color: #bdf6ff;
    background: rgba(70, 217, 255, 0.12);
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 68px;
    padding: 0 5vw;
    border-bottom: 1px solid var(--line);
    background: rgba(13, 17, 20, 0.78);
    backdrop-filter: blur(18px);
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.22);
}

.brand {
    color: #ffffff;
    font-size: 20px;
    font-weight: 800;
    text-shadow: 0 0 22px rgba(70, 217, 255, 0.32);
}

nav {
    display: flex;
    align-items: center;
    gap: 18px;
    color: var(--muted);
    font-size: 15px;
}

nav a:hover {
    color: var(--primary);
}

.nav-button {
    padding: 9px 14px;
    border-radius: 8px;
    color: #071113;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    box-shadow: 0 10px 26px rgba(70, 217, 255, 0.2);
}

.inline {
    display: inline;
}

.inline button {
    padding: 0;
    border: 0;
    color: var(--muted);
    background: transparent;
    cursor: pointer;
    font: inherit;
}

.inline button:hover {
    color: var(--primary);
}

.shell {
    width: min(1120px, calc(100% - 32px));
    margin: 38px auto;
}

.hero {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.75fr);
    gap: 28px;
    align-items: center;
    min-height: calc(100vh - 170px);
}

.hero h1,
.panel h1,
.auth-card h1 {
    margin: 0;
    line-height: 1.1;
}

.hero h1 {
    max-width: 760px;
    font-size: clamp(42px, 7vw, 78px);
    letter-spacing: 0;
    color: #ffffff;
    text-shadow: 0 0 38px rgba(70, 217, 255, 0.2);
}

.hero p {
    max-width: 680px;
    color: var(--muted);
    font-size: 18px;
    line-height: 1.8;
}

.eyebrow {
    margin: 0 0 12px;
    color: var(--accent);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0;
    text-transform: uppercase;
}

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
}

.button,
button.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0 18px;
    border: 1px solid var(--line-strong);
    border-radius: 8px;
    color: var(--ink);
    background: rgba(255, 255, 255, 0.045);
    font-weight: 700;
    cursor: pointer;
    transition: border-color 0.16s ease, box-shadow 0.16s ease, transform 0.16s ease, background 0.16s ease;
}

.button:hover,
button.button:hover {
    border-color: rgba(70, 217, 255, 0.62);
    background: rgba(70, 217, 255, 0.09);
    box-shadow: 0 0 0 3px rgba(70, 217, 255, 0.08);
    transform: translateY(-1px);
}

.button.primary {
    border-color: transparent;
    color: #071113;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    box-shadow: 0 14px 34px rgba(70, 217, 255, 0.2);
}

.button.primary:hover {
    background: linear-gradient(135deg, #76e4ff, #59efb1);
    box-shadow: 0 16px 38px rgba(55, 231, 160, 0.22);
}

.button.small {
    min-height: 36px;
    padding: 0 13px;
}

.button.danger {
    border-color: rgba(255, 107, 107, 0.36);
    color: var(--danger);
    background: rgba(255, 107, 107, 0.08);
}

.ranking-preview,
.panel,
.auth-card,
.metric {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 8px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.055), transparent 110px),
        var(--panel);
    box-shadow: var(--shadow);
    backdrop-filter: blur(18px);
}

.ranking-preview::before,
.panel::before,
.auth-card::before,
.metric::before {
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    height: 1px;
    content: "";
    background: linear-gradient(90deg, transparent, rgba(70, 217, 255, 0.72), rgba(55, 231, 160, 0.48), transparent);
}

.ranking-preview:hover,
.panel:hover,
.auth-card:hover,
.metric:hover {
    border-color: var(--line-strong);
    box-shadow: var(--glow);
}

.ranking-preview {
    padding: 22px;
}

.preview-head,
.section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
}

.preview-head span {
    font-size: 18px;
    font-weight: 800;
}

.preview-head a {
    color: var(--primary);
    font-weight: 700;
}

.ranking {
    display: grid;
    gap: 10px;
}

.rank-row {
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr) auto;
    align-items: center;
    gap: 12px;
    min-height: 56px;
    padding: 0 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.04);
    transition: border-color 0.16s ease, background 0.16s ease;
}

.rank-row:hover {
    border-color: var(--line-strong);
    background: rgba(70, 217, 255, 0.075);
}

.ranking.large .rank-row {
    min-height: 64px;
}

.rank-no {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: 999px;
    color: #071113;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    font-weight: 800;
}

.rank-user {
    display: grid;
    gap: 3px;
    overflow: hidden;
    font-weight: 700;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.rank-user small {
    color: var(--muted);
    font-size: 12px;
    font-weight: 700;
}

.panel {
    padding: 26px;
}

.auth-card {
    width: min(460px, 100%);
    margin: 70px auto;
    padding: 30px;
}

.stack {
    display: grid;
    gap: 16px;
    margin-top: 24px;
}

label {
    display: grid;
    gap: 8px;
    color: var(--muted);
    font-weight: 700;
}

input,
select {
    width: 100%;
    min-height: 42px;
    padding: 0 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--ink);
    background: rgba(6, 10, 12, 0.42);
    font: inherit;
}

input::placeholder {
    color: rgba(145, 162, 168, 0.72);
}

select {
    cursor: pointer;
}

input:focus,
select:focus {
    border-color: var(--primary);
    outline: 3px solid rgba(70, 217, 255, 0.14);
    box-shadow: 0 0 18px rgba(70, 217, 255, 0.14);
}

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

.muted a {
    color: var(--primary);
    font-weight: 700;
}

.flash {
    margin-bottom: 18px;
    padding: 14px 16px;
    border: 1px solid transparent;
    border-radius: 8px;
    font-weight: 700;
}

.flash.success {
    color: var(--success);
    background: var(--success-bg);
    border-color: rgba(55, 231, 160, 0.24);
}

.flash.error {
    color: var(--danger);
    background: var(--danger-bg);
    border-color: rgba(255, 107, 107, 0.28);
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 18px;
    margin-bottom: 18px;
}

.content-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(300px, 0.75fr);
    gap: 18px;
    align-items: start;
}

.admin-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
    gap: 18px;
    align-items: start;
    margin-bottom: 18px;
}

.admin-grid > .panel:only-child {
    grid-column: 1 / -1;
}

.spaced {
    margin-top: 18px;
}

.metric {
    padding: 22px;
}

.metric::after {
    position: absolute;
    right: 16px;
    bottom: 14px;
    width: 48px;
    height: 2px;
    content: "";
    background: linear-gradient(90deg, transparent, var(--primary));
    opacity: 0.7;
}

.metric span,
.details dt {
    color: var(--muted);
    font-weight: 700;
}

.metric strong {
    display: block;
    margin-top: 10px;
    font-size: 30px;
    color: #ffffff;
    text-shadow: 0 0 20px rgba(70, 217, 255, 0.2);
}

.details {
    display: grid;
    gap: 14px;
    margin: 22px 0 0;
}

.details div {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 16px;
}

.details dd {
    margin: 0;
    font-weight: 700;
}

.badge {
    display: inline-flex;
    align-items: center;
    min-height: 32px;
    padding: 0 12px;
    border-radius: 999px;
    color: var(--accent);
    background: rgba(55, 231, 160, 0.12);
    border: 1px solid rgba(55, 231, 160, 0.24);
    font-weight: 800;
    white-space: nowrap;
}

.table-wrap {
    overflow-x: auto;
}

table {
    width: 100%;
    min-width: 1460px;
    border-collapse: separate;
    border-spacing: 0;
}

th,
td {
    padding: 14px 12px;
    border-bottom: 1px solid var(--line);
    text-align: left;
    white-space: nowrap;
}

th {
    position: sticky;
    top: 0;
    z-index: 1;
    color: var(--muted);
    font-size: 13px;
    background: rgba(15, 18, 21, 0.96);
    backdrop-filter: blur(12px);
}

tbody tr {
    transition: background 0.16s ease;
}

tbody tr:hover {
    background: rgba(70, 217, 255, 0.055);
}

.balance-form {
    display: grid;
    grid-template-columns: 140px auto;
    gap: 10px;
    align-items: center;
}

.level-form {
    display: grid;
    grid-template-columns: 120px 150px 130px auto;
    gap: 10px;
    align-items: center;
}

.card-generate-form {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    align-items: end;
}

.card-generate-form label:nth-of-type(3),
.card-generate-form button {
    grid-column: 1 / -1;
}

.card-generate-form button {
    justify-self: start;
}

.generated-panel {
    min-height: 100%;
}

.generated-codes {
    width: 100%;
    min-height: 220px;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--ink);
    background:
        linear-gradient(rgba(70, 217, 255, 0.05) 1px, transparent 1px),
        rgba(6, 10, 12, 0.54);
    background-size: 100% 28px;
    font: 700 14px/1.7 ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
    resize: vertical;
}

.cards-table {
    min-width: 1180px;
}

.mini-history {
    display: grid;
    gap: 10px;
    margin-top: 22px;
}

.mini-history h2 {
    margin: 0;
    font-size: 16px;
}

.mini-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 0;
    border-top: 1px solid var(--line);
}

.mini-row span {
    color: var(--muted);
    font-size: 13px;
    font-weight: 700;
}

.mini-row strong {
    color: var(--success);
}

.quota-cell {
    display: grid;
    gap: 4px;
}

.quota-cell strong {
    color: var(--primary);
}

.quota-cell span {
    color: var(--muted);
    font-size: 12px;
    font-weight: 700;
}

.account-actions {
    display: flex;
    gap: 8px;
}

.level-chip,
.status-chip {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 0 10px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 800;
}

.level-chip {
    color: #2a1a00;
    background: linear-gradient(135deg, var(--warning), #f9e38b);
}

.status-chip.active {
    color: var(--success);
    background: var(--success-bg);
    border: 1px solid rgba(55, 231, 160, 0.22);
}

.status-chip.banned {
    color: var(--danger);
    background: var(--danger-bg);
    border: 1px solid rgba(255, 107, 107, 0.24);
}

.status-chip.disabled {
    color: #a8b4ba;
    background: rgba(168, 180, 186, 0.12);
    border: 1px solid rgba(168, 180, 186, 0.18);
}

.status-chip.used {
    color: var(--primary);
    background: rgba(70, 217, 255, 0.12);
    border: 1px solid rgba(70, 217, 255, 0.24);
}

.empty {
    padding: 20px;
    color: var(--muted);
    text-align: center;
}

.amount-in {
    color: var(--success);
    font-weight: 800;
}

.amount-out {
    color: var(--danger);
    font-weight: 800;
}

@media (max-width: 760px) {
    .topbar {
        align-items: flex-start;
        flex-direction: column;
        gap: 12px;
        padding: 16px;
    }

    nav {
        flex-wrap: wrap;
        gap: 12px;
    }

    .shell {
        margin: 24px auto;
    }

    .hero,
    .dashboard-grid,
    .content-grid,
    .admin-grid,
    .card-generate-form {
        grid-template-columns: 1fr;
        min-height: auto;
    }

    .hero h1 {
        font-size: 42px;
    }

    .rank-row {
        grid-template-columns: 36px minmax(0, 1fr);
    }

    .rank-row strong {
        grid-column: 2;
    }

    .section-head,
    .preview-head {
        align-items: flex-start;
        flex-direction: column;
    }

    .details div {
        grid-template-columns: 1fr;
        gap: 5px;
    }
}