:root {
    --bg: #0f1419;
    --card: #1a2332;
    --accent: #1565c0;
    --text: #e8eef4;
    --muted: #8b9cb3;
    --ok: #2e7d32;
    --err: #c62828;
    --radius: 10px;
    --touch: 44px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
    margin: 0;
    font-family: Segoe UI, system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.45;
    overflow-x: hidden;
}

.admin-shell { min-height: 100vh; min-height: 100dvh; display: flex; flex-direction: column; }

.admin-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: var(--card);
    border-bottom: 1px solid #2a3544;
    position: sticky;
    top: 0;
    z-index: 50;
}
.brand { font-size: 1.15rem; font-weight: 700; }
.brand span { color: #64b5f6; font-weight: 400; }

.nav-check { position: absolute; opacity: 0; pointer-events: none; width: 0; height: 0; }
.nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: var(--touch);
    height: var(--touch);
    padding: 10px;
    background: transparent;
    border: 1px solid #2a3544;
    border-radius: 8px;
    cursor: pointer;
}
.nav-toggle span {
    display: block;
    height: 2px;
    background: var(--text);
    border-radius: 1px;
}
.admin-header { position: relative; }
.admin-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    gap: 0.25rem;
    padding-top: 0.5rem;
}
.nav-check:checked ~ .admin-nav { display: flex; }
.admin-nav a {
    color: var(--text);
    text-decoration: none;
    padding: 0.65rem 0.75rem;
    border-radius: 8px;
    min-height: var(--touch);
    display: flex;
    align-items: center;
}
.admin-nav a:hover { background: #2a3544; }

@media (min-width: 768px) {
    .nav-toggle, .nav-check { display: none; }
    .admin-header { padding: 1rem 1.5rem; flex-wrap: nowrap; }
    .admin-nav {
        display: flex !important;
        width: auto;
        flex-direction: row;
        padding: 0;
        gap: 0;
    }
    .admin-nav a {
        margin-left: 1rem;
        padding: 0.5rem 0.75rem;
        min-height: auto;
        color: var(--muted);
    }
    .admin-nav a:hover { color: var(--text); background: transparent; }
}

.admin-main {
    padding: 1rem;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    flex: 1;
}
@media (min-width: 768px) { .admin-main { padding: 1.5rem; } }

h1 { margin: 0 0 0.35rem; font-size: 1.35rem; }
@media (min-width: 768px) { h1 { font-size: 1.6rem; } }
.muted { color: var(--muted); font-size: 0.92rem; }
.back-link { color: var(--muted); text-decoration: none; font-size: 0.9rem; display: inline-block; margin-bottom: 0.5rem; }
.back-link:hover { color: #64b5f6; }

.page-head {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.25rem;
}
@media (min-width: 640px) {
    .page-head { flex-direction: row; align-items: flex-start; justify-content: space-between; }
}

.stats-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.65rem;
    margin-bottom: 1rem;
}
.stat-card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 0.85rem;
    text-align: center;
    border: 1px solid #2a3544;
}
.stat-num { display: block; font-size: 1.5rem; font-weight: 700; }
.stat-label { font-size: 0.75rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
.stat-ok .stat-num { color: #81c784; }
.stat-off .stat-num { color: #ef9a9a; }

.toolbar { margin-bottom: 1rem; }
.search-input {
    width: 100%;
    padding: 0.7rem 0.85rem;
    border-radius: 8px;
    border: 1px solid #2a3544;
    background: var(--card);
    color: var(--text);
    font-size: 1rem;
    min-height: var(--touch);
}

.client-cards {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}
@media (min-width: 900px) { .client-cards { display: none; } }

.client-card {
    background: var(--card);
    border: 1px solid #2a3544;
    border-radius: var(--radius);
    padding: 1rem;
}
.client-card.is-suspended { opacity: 0.85; border-color: #4a3030; }
.client-card-top { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.35rem; }
.client-code { color: var(--muted); font-size: 0.85rem; }
.client-title { margin: 0; font-size: 1.1rem; }
.client-sub { margin: 0.15rem 0 0.5rem; color: var(--muted); font-size: 0.9rem; }
.client-meta { margin: 0.25rem 0; font-size: 0.9rem; }
.client-meta a { color: #64b5f6; }
.client-note { margin: 0.5rem 0 0; padding: 0.5rem; background: #3d2020; border-radius: 6px; font-size: 0.85rem; }
.client-actions { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.85rem; }

.desktop-only { display: none; }
@media (min-width: 900px) {
    .desktop-only { display: block; overflow-x: auto; }
}

.tbl { width: 100%; border-collapse: collapse; margin-top: 0.5rem; min-width: 720px; }
.tbl th, .tbl td { text-align: left; padding: 0.65rem 0.5rem; border-bottom: 1px solid #2a3544; vertical-align: top; }
.tbl a { color: #64b5f6; }
.cell-sub { font-size: 0.82rem; margin-top: 0.15rem; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.6rem 1rem;
    min-height: var(--touch);
    border-radius: 8px;
    background: #2a3544;
    color: var(--text);
    text-decoration: none;
    border: none;
    cursor: pointer;
    font-size: 0.95rem;
    touch-action: manipulation;
}
.btn.primary { background: var(--accent); color: #fff; }
.btn:disabled { opacity: 0.6; cursor: wait; }
.btn-sm { min-height: 36px; padding: 0.35rem 0.75rem; font-size: 0.85rem; }
.btn-warn { background: #8d3a2a; color: #fff; }
.btn-ok { background: var(--ok); color: #fff; }
.btn-block-mobile { width: 100%; }
@media (min-width: 640px) { .btn-block-mobile { width: auto; } }

.form-card {
    background: var(--card);
    padding: 1.25rem;
    border-radius: var(--radius);
    border: 1px solid #2a3544;
    max-width: 520px;
}
.form-wide { max-width: 640px; }
.field { margin-bottom: 1rem; }
.field-row {
    display: flex;
    flex-direction: column;
    gap: 0;
}
@media (min-width: 560px) {
    .field-row { flex-direction: row; gap: 1rem; }
    .field-row .field { flex: 1; }
}
.field label { display: block; margin-bottom: 0.35rem; color: var(--muted); font-size: 0.88rem; }
.field input, .field textarea, .login-card input {
    width: 100%;
    padding: 0.65rem 0.75rem;
    border-radius: 8px;
    border: 1px solid #2a3544;
    background: var(--bg);
    color: var(--text);
    font-size: 1rem;
    min-height: var(--touch);
}
.field textarea { min-height: 80px; resize: vertical; }
.inline { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; }
.inline input { flex: 1; min-width: 120px; }
.domain-suffix { color: var(--muted); font-size: 0.9rem; word-break: break-all; }

.section-title { margin: 1.25rem 0 0.75rem; font-size: 1rem; color: #64b5f6; }
.section-title:first-child { margin-top: 0; }

.detail-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: 1fr;
}
@media (min-width: 900px) {
    .detail-grid { grid-template-columns: 1fr 1fr; align-items: start; }
}
.detail-list { margin: 0; }
.detail-list dt { color: var(--muted); font-size: 0.8rem; margin-top: 0.65rem; }
.detail-list dt:first-child { margin-top: 0; }
.detail-list dd { margin: 0.15rem 0 0; word-break: break-word; }
.mono { font-family: ui-monospace, monospace; font-size: 0.85rem; }

.alert {
    background: #3d2020;
    border: 1px solid var(--err);
    padding: 0.75rem 1rem;
    border-radius: 8px;
    margin: 1rem 0;
    word-break: break-word;
}
.alert.ok { background: #1b3d1f; border-color: var(--ok); }
.log-box {
    background: #0a0e12;
    padding: 1rem;
    border-radius: 8px;
    overflow: auto;
    max-height: 280px;
    font-size: 0.78rem;
    white-space: pre-wrap;
    word-break: break-word;
}

.login-body {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}
.login-card {
    background: var(--card);
    padding: 1.75rem;
    border-radius: var(--radius);
    width: 100%;
    max-width: 400px;
    border: 1px solid #2a3544;
}
.login-logo {
    width: 80px;
    height: 80px;
    border-radius: 18px;
    object-fit: contain;
    margin: 0 auto 1rem;
    display: block;
    background: #0f1419;
    padding: 4px;
}
.login-card h1 { margin: 0 0 0.25rem; text-align: center; }
.login-card h1 .accent { color: var(--accent-light, #42a5f5); font-weight: 500; }
.login-card .muted { text-align: center; }
.login-card form { display: flex; flex-direction: column; gap: 0.75rem; margin-top: 1.25rem; }
.login-card label { color: var(--muted); font-size: 0.88rem; }
.login-card button {
    margin-top: 0.5rem;
    padding: 0.75rem;
    min-height: var(--touch);
    border: none;
    border-radius: 8px;
    background: var(--accent);
    color: white;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
}

.apk-qr-card {
    margin-top: 1rem;
    padding: 1rem;
    border: 1px solid #2a3544;
    border-radius: var(--radius);
    background: #0f1620;
    text-align: center;
}
.apk-qr-img {
    display: block;
    margin: 0.75rem auto;
    border-radius: 12px;
    background: #fff;
    padding: 8px;
}
.small { font-size: 0.85rem; }

.badge {
    display: inline-block;
    padding: 0.2rem 0.55rem;
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
}
.badge-ok { background: #1b3d1f; color: #a5d6a7; }
.badge-off { background: #3d2020; color: #ef9a9a; }
.row-suspended { opacity: 0.8; }
.actions-cell { white-space: nowrap; }

.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    z-index: 100;
    padding: 0;
}
@media (min-width: 560px) {
    .modal-backdrop { align-items: center; padding: 1rem; }
}
.modal-card {
    background: var(--card);
    padding: 1.25rem;
    border-radius: var(--radius) var(--radius) 0 0;
    width: 100%;
    max-width: 440px;
    border: 1px solid #2a3544;
    max-height: 90vh;
    overflow-y: auto;
}
@media (min-width: 560px) {
    .modal-card { border-radius: var(--radius); }
}
.modal-card h2 { margin-top: 0; font-size: 1.15rem; }
.modal-actions {
    display: flex;
    flex-direction: column-reverse;
    gap: 0.5rem;
    margin-top: 1rem;
}
@media (min-width: 400px) {
    .modal-actions { flex-direction: row; justify-content: flex-end; }
    .modal-actions .btn { width: auto; }
}

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