:root {
    --bg1: #0f1220;
    --bg2: #1a1f38;
    --card: #171b2e;
    --card-border: #2a2f4a;
    --accent: #4a7dff;
    --accent-hover: #5f8bff;
    --text: #e6e8f0;
    --text-dim: #9099b8;
    --danger: #ff5c5c;
    --success: #34c77b;
    --warning: #f0a83c;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(160deg, var(--bg1), var(--bg2));
    color: var(--text);
    min-height: 100vh;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 20px;
    background: rgba(23, 27, 46, 0.85);
    border-bottom: 1px solid var(--card-border);
    position: sticky;
    top: 0;
    z-index: 10;
    flex-wrap: wrap;
    gap: 10px;
}

.topbar .brand { font-weight: 700; font-size: 18px; color: var(--text); }
.topbar nav a {
    color: var(--text-dim);
    text-decoration: none;
    margin-right: 16px;
    font-size: 14px;
    padding: 6px 4px;
}
.topbar nav a:hover, .topbar nav a.active { color: var(--accent); }
.topbar .user-info { font-size: 13px; color: var(--text-dim); }
.topbar .user-info a { color: var(--danger); text-decoration: none; margin-left: 10px; }

.container { max-width: 960px; margin: 0 auto; padding: 24px 16px 60px; }

.card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 22px;
    margin-bottom: 20px;
    box-shadow: 0 4px 18px rgba(0,0,0,0.25);
}

h1, h2, h3 { margin-top: 0; }
h1 { font-size: 22px; }
h2 { font-size: 18px; }

label { display: block; font-size: 13px; color: var(--text-dim); margin-bottom: 6px; margin-top: 14px; }
input[type=text], input[type=password], input[type=number], select, input[type=file] {
    width: 100%;
    padding: 10px 12px;
    background: #10131f;
    border: 1px solid var(--card-border);
    border-radius: 8px;
    color: var(--text);
    font-size: 14px;
}
input:focus, select:focus { outline: none; border-color: var(--accent); }

.btn {
    display: inline-block;
    background: var(--accent);
    color: #fff;
    border: none;
    padding: 10px 18px;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    text-decoration: none;
    margin-top: 16px;
}
.btn:hover { background: var(--accent-hover); }
.btn.btn-danger { background: var(--danger); }
.btn.btn-danger:hover { background: #ff7a7a; }
.btn.btn-secondary { background: #333a5c; }
.btn.btn-sm { padding: 6px 12px; font-size: 12px; margin-top: 0; }

.checkbox-row { display: flex; align-items: center; gap: 8px; margin-top: 14px; }
.checkbox-row input { width: auto; }

table { width: 100%; border-collapse: collapse; margin-top: 10px; font-size: 13px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--card-border); }
th { color: var(--text-dim); font-weight: 600; }
tr:hover td { background: rgba(255,255,255,0.02); }
td a { color: var(--accent); }

.badge { padding: 3px 10px; border-radius: 20px; font-size: 11px; font-weight: 600; }
.badge.active { background: rgba(52,199,123,0.15); color: var(--success); }
.badge.suspended { background: rgba(255,92,92,0.15); color: var(--danger); }

.flash { padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; font-size: 14px; }
.flash.success { background: rgba(52,199,123,0.12); color: var(--success); border: 1px solid rgba(52,199,123,0.3); }
.flash.error { background: rgba(255,92,92,0.12); color: var(--danger); border: 1px solid rgba(255,92,92,0.3); }

.result-box { background: #10131f; border: 1px solid var(--card-border); border-radius: 8px; padding: 14px; margin-top: 10px; }
.result-row { display: flex; justify-content: space-between; align-items: center; gap: 8px; padding: 6px 0; font-size: 13px; flex-wrap: wrap; }
.result-row .val { color: var(--accent); word-break: break-all; }
.copy-btn { background: #333a5c; border: none; color: var(--text); padding: 4px 10px; border-radius: 6px; font-size: 11px; cursor: pointer; }

.spinner {
    display: none;
    width: 18px; height: 18px;
    border: 3px solid rgba(255,255,255,0.25);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    margin-left: 8px;
    vertical-align: middle;
}
@keyframes spin { to { transform: rotate(360deg); } }

.helper-text { font-size: 12px; color: var(--text-dim); margin-top: 4px; }

.search-sticky {
    position: sticky;
    top: 58px;
    z-index: 9;
    background: rgba(15, 18, 32, 0.95);
    backdrop-filter: blur(4px);
    padding: 10px 16px;
    border-bottom: 1px solid var(--card-border);
}
.search-sticky input {
    max-width: 960px;
    margin: 0 auto;
}

.login-wrap { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-box { width: 100%; max-width: 360px; }

@media (max-width: 640px) {
    table, thead, tbody, th, td, tr { display: block; }
    thead { display: none; }
    tr { border: 1px solid var(--card-border); border-radius: 10px; margin-bottom: 10px; padding: 8px; }
    td { border: none; padding: 6px 4px; display: flex; justify-content: space-between; }
    td::before { content: attr(data-label); color: var(--text-dim); font-size: 11px; margin-right: 10px; }
}