/* =====================================================================
   AZURA HOTEL — giao diện quản trị
   ===================================================================== */

:root {
    --ink: #0d2b27;
    --ink-soft: #16423c;
    --gold: #c8a45c;
    --sand: #f8f3e9;
    --cream: #f6f4ef;
    --line: #e4dccc;
    --muted: #6c7a76;
    --danger: #b4342c;
    --success: #1f7a5a;
    --info: #2a6f97;
    --warning: #b7791f;
    --shadow: 0 16px 36px -26px rgba(13, 43, 39, .5);
}

* { box-sizing: border-box; }

body.admin-body {
    margin: 0;
    font-family: "Segoe UI", Roboto, Arial, sans-serif;
    font-size: 15px;
    color: var(--ink);
    background: var(--cream);
}

a { text-decoration: none; color: inherit; }
h1, h2, h3, h4 { margin: 0 0 12px; font-weight: 600; line-height: 1.25; }
p { margin: 0 0 12px; }
.muted { color: var(--muted); }
.small { font-size: .84rem; }
.center { text-align: center; }
.mt-24 { margin-top: 24px; }

/* ---------------------------------------------------------------- */
/* Khung                                                             */
/* ---------------------------------------------------------------- */
.admin-shell { display: grid; grid-template-columns: 258px 1fr; min-height: 100vh; }

.admin-side {
    background: var(--ink);
    color: rgba(255, 255, 255, .72);
    display: flex;
    flex-direction: column;
    padding: 22px 16px;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}
.admin-brand { display: flex; align-items: center; gap: 12px; padding: 6px 10px 22px; }
.admin-logo {
    width: 40px; height: 40px; border-radius: 50%;
    display: grid; place-items: center;
    border: 1px solid rgba(200, 164, 92, .55);
    color: var(--gold); font-family: Cambria, Georgia, serif; font-size: 1.2rem;
}
.admin-brand strong { display: block; color: #fff; letter-spacing: .22em; font-family: Cambria, Georgia, serif; font-size: .95rem; }
.admin-brand small { font-size: .55rem; letter-spacing: .24em; color: rgba(255, 255, 255, .45); }

.admin-nav { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.nav-group {
    font-size: .66rem; letter-spacing: .18em; text-transform: uppercase;
    color: rgba(255, 255, 255, .38); padding: 18px 12px 8px;
}
.admin-nav .nav-link {
    display: flex; align-items: center; gap: 10px;
    padding: 11px 12px; border-radius: 10px;
    font-size: .9rem; color: rgba(255, 255, 255, .72);
    transition: background .2s ease, color .2s ease;
}
.admin-nav .nav-link:hover { background: rgba(255, 255, 255, .07); color: #fff; }
.admin-nav .nav-link.active { background: rgba(200, 164, 92, .16); color: #fff; }
.admin-nav .nav-link.active .ic { color: var(--gold); }
.admin-nav .ic { width: 18px; text-align: center; opacity: .9; }
.nav-badge {
    margin-left: auto; background: var(--gold); color: #241a06;
    font-size: .7rem; font-weight: 700; border-radius: 999px; padding: 1px 7px;
}
.admin-side-foot { padding-top: 18px; border-top: 1px solid rgba(255, 255, 255, .08); }

.admin-main { min-width: 0; display: flex; flex-direction: column; }
.admin-top {
    background: #fff; border-bottom: 1px solid var(--line);
    padding: 16px 30px; display: flex; align-items: center; justify-content: space-between; gap: 20px;
    position: sticky; top: 0; z-index: 20;
}
.admin-top h1 { font-size: 1.28rem; margin: 0; }
.admin-top small { color: var(--muted); font-size: .78rem; }
.admin-top-left { display: flex; align-items: center; gap: 14px; }
.admin-top-right { display: flex; align-items: center; gap: 16px; }
.admin-toggle { display: none; background: none; border: 1px solid var(--line); border-radius: 8px; width: 38px; height: 38px; cursor: pointer; }
.admin-user { display: flex; align-items: center; gap: 10px; text-align: right; }
.admin-user strong { display: block; font-size: .86rem; }
.admin-user small { font-size: .72rem; color: var(--muted); }
.admin-avatar {
    width: 38px; height: 38px; border-radius: 50%; background: var(--sand);
    border: 1px solid var(--line); display: grid; place-items: center; font-weight: 700;
}
.admin-content { padding: 26px 30px 50px; }

/* ---------------------------------------------------------------- */
/* Thẻ KPI                                                           */
/* ---------------------------------------------------------------- */
.kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-bottom: 24px; }
.kpi {
    background: #fff; border: 1px solid var(--line); border-radius: 14px;
    padding: 20px; box-shadow: var(--shadow);
}
.kpi .kpi-label { font-size: .74rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); font-weight: 700; }
.kpi .kpi-value { font-family: Cambria, Georgia, serif; font-size: 1.55rem; margin: 8px 0 2px; line-height: 1.1; white-space: nowrap; letter-spacing: -.01em; }
.kpi .kpi-foot { font-size: .78rem; color: var(--muted); }
.kpi .kpi-icon {
    float: right; width: 40px; height: 40px; border-radius: 12px;
    display: grid; place-items: center; background: var(--sand); color: var(--gold);
}
.kpi.kpi-gold { background: linear-gradient(140deg, #0d2b27, #1b4b43); border-color: transparent; }
.kpi.kpi-gold .kpi-label, .kpi.kpi-gold .kpi-foot { color: rgba(255, 255, 255, .6); }
.kpi.kpi-gold .kpi-value { color: #fff; }
.kpi.kpi-gold .kpi-icon { background: rgba(200, 164, 92, .2); color: var(--gold); }

/* ---------------------------------------------------------------- */
/* Card / khối                                                       */
/* ---------------------------------------------------------------- */
.panel {
    background: #fff; border: 1px solid var(--line); border-radius: 14px;
    padding: 22px; margin-bottom: 22px; box-shadow: var(--shadow);
}
.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.panel-head h2 { font-size: 1.05rem; margin: 0; }
.panel-head .sub { font-size: .82rem; color: var(--muted); }

.grid-2 { display: grid; grid-template-columns: 1.5fr 1fr; gap: 22px; align-items: start; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }

/* ---------------------------------------------------------------- */
/* Bảng                                                              */
/* ---------------------------------------------------------------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; }
table.table { width: 100%; border-collapse: collapse; font-size: .87rem; background: #fff; }
table.table th {
    text-align: left; padding: 12px 14px; background: var(--sand);
    font-size: .7rem; letter-spacing: .09em; text-transform: uppercase;
    color: var(--ink-soft); border-bottom: 1px solid var(--line); white-space: nowrap;
}
table.table td { padding: 12px 14px; border-bottom: 1px solid #f2ebde; vertical-align: middle; }
table.table tr:last-child td { border-bottom: 0; }
table.table tbody tr:hover { background: #fdfaf4; }
table.table .num { text-align: right; white-space: nowrap; }
table.table .actions { white-space: nowrap; text-align: right; }

/* ---------------------------------------------------------------- */
/* Nút / badge / alert                                               */
/* ---------------------------------------------------------------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    padding: 10px 20px; border-radius: 9px; border: 1px solid transparent;
    font-size: .87rem; font-weight: 600; cursor: pointer; transition: all .18s ease;
    font-family: inherit; line-height: 1.2;
}
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { background: var(--ink-soft); }
.btn-gold { background: var(--gold); color: #241a06; }
.btn-gold:hover { background: #d6b371; }
.btn-outline { border-color: var(--line); color: var(--ink); background: #fff; }
.btn-outline:hover { border-color: var(--ink); }
.btn-light { background: rgba(255, 255, 255, .12); color: #fff; border-color: rgba(255, 255, 255, .3); }
.btn-light:hover { background: rgba(255, 255, 255, .2); }
.btn-danger { background: #fbe9e7; color: var(--danger); border-color: #f3cfc9; }
.btn-danger:hover { background: var(--danger); color: #fff; }
.btn-success { background: #e4f4ec; color: var(--success); border-color: #c8e8d6; }
.btn-success:hover { background: var(--success); color: #fff; }
.btn-sm { padding: 7px 12px; font-size: .78rem; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .5; pointer-events: none; }

.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: .72rem; font-weight: 700; white-space: nowrap; }
.badge-success { background: #e4f4ec; color: var(--success); }
.badge-info { background: #e6f0f7; color: var(--info); }
.badge-warning { background: #fdf1dc; color: var(--warning); }
.badge-danger { background: #fbe9e7; color: var(--danger); }
.badge-muted { background: #eef0ef; color: #5d6a67; }

.alert {
    display: flex; align-items: center; gap: 10px;
    border: 1px solid transparent; border-radius: 10px;
    padding: 12px 16px; margin-bottom: 18px; font-size: .88rem;
}
.alert .alert-icon { width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; font-size: .74rem; font-weight: 700; }
.alert-success { background: #e9f6ef; color: #155c43; border-color: #c8e8d6; }
.alert-success .alert-icon { background: #155c43; color: #fff; }
.alert-error { background: #fbeceb; color: #8c2a23; border-color: #f2d2ce; }
.alert-error .alert-icon { background: #8c2a23; color: #fff; }
.alert-info { background: #eaf2f8; color: #215b7d; border-color: #cfe2ef; }
.alert-info .alert-icon { background: #215b7d; color: #fff; }
.alert-warning { background: #fdf4e3; color: #8a5a12; border-color: #f0dcb6; }
.alert-warning .alert-icon { background: #8a5a12; color: #fff; }

/* ---------------------------------------------------------------- */
/* Biểu mẫu                                                          */
/* ---------------------------------------------------------------- */
.field { margin-bottom: 14px; }
.field label {
    display: block; font-size: .72rem; letter-spacing: .09em; text-transform: uppercase;
    color: var(--muted); font-weight: 700; margin-bottom: 6px;
}
.field input, .field select, .field textarea {
    width: 100%; border: 1px solid var(--line); border-radius: 9px;
    padding: 10px 12px; font-size: .9rem; font-family: inherit; color: var(--ink);
    background: #fff; min-height: 40px;
}
.field textarea { min-height: 90px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
    outline: none; border-color: var(--gold); box-shadow: 0 0 0 3px rgba(200, 164, 92, .16);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-inline { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; }
.form-inline .field { margin: 0; min-width: 150px; }
.help { font-size: .76rem; color: var(--muted); margin-top: 4px; }

/* ---------------------------------------------------------------- */
/* Biểu đồ cột (SVG/CSS)                                             */
/* ---------------------------------------------------------------- */
.chart { display: flex; align-items: flex-end; gap: 14px; height: 220px; padding-top: 10px; }
.chart-col { flex: 1; display: flex; flex-direction: column; justify-content: flex-end; align-items: center; gap: 8px; height: 100%; }
.chart-bar {
    flex: none;
    width: 100%; max-width: 54px; border-radius: 8px 8px 4px 4px;
    background: linear-gradient(180deg, #2b6a5f, #16423c);
    position: relative; min-height: 4px; transition: opacity .2s ease;
}
.chart-col:hover .chart-bar { opacity: .8; }
.chart-bar span {
    position: absolute; top: -22px; left: 50%; transform: translateX(-50%);
    font-size: .7rem; color: var(--muted); white-space: nowrap;
}
.chart-label { flex: none; font-size: .74rem; color: var(--muted); }

.progress { height: 8px; background: #eef0ef; border-radius: 999px; overflow: hidden; }
.progress > span { display: block; height: 100%; background: linear-gradient(90deg, #2b6a5f, var(--gold)); }

/* ---------------------------------------------------------------- */
/* Trang đăng nhập admin / lỗi                                       */
/* ---------------------------------------------------------------- */
.empty { text-align: center; padding: 50px 20px; color: var(--muted); }
.empty .e-icon { font-size: 2rem; margin-bottom: 10px; }

/* ---------------------------------------------------------------- */
/* Responsive                                                        */
/* ---------------------------------------------------------------- */
@media (max-width: 1200px) {
    .kpi-grid { grid-template-columns: repeat(2, 1fr); }
    .grid-2, .grid-3 { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
    .admin-shell { grid-template-columns: 1fr; }
    .admin-side {
        position: fixed; left: 0; top: 0; bottom: 0; width: 258px; z-index: 60;
        transform: translateX(-100%); transition: transform .25s ease;
    }
    .admin-side.open { transform: translateX(0); }
    .admin-toggle { display: block; }
    .admin-top { padding: 14px 18px; }
    .admin-content { padding: 18px; }
    .admin-top h1 { font-size: 1.05rem; }
}

@media (max-width: 620px) {
    .kpi-grid, .form-row { grid-template-columns: 1fr; }
    .admin-user div { display: none; }
}

/* ---------------------------------------------------------------- */
/* Phân trang                                                        */
/* ---------------------------------------------------------------- */
.pager { display: flex; align-items: center; justify-content: center; gap: 14px; margin-top: 18px; }
.pager-info { font-size: .85rem; color: var(--muted); }
.pager-info strong { color: var(--ink); }
/* Checkbox trong form quản trị */
.field input[type="checkbox"] {
    width: 16px; height: 16px; min-height: 0; margin: 0 8px 0 0;
    vertical-align: middle; accent-color: #0d2b27;
}
.field input[type="checkbox"] + label {
    display: inline; text-transform: none; letter-spacing: 0;
    font-size: .9rem; color: #0d2b27; font-weight: 500;
}

/* Quản lý tài khoản theo từng khách sạn */
.hotel-accounts-page { max-width: 1480px; margin: 0 auto; }
.accounts-intro { margin: 2px 0 22px; }
.accounts-kicker { display: inline-block; margin-bottom: 8px; color: var(--gold); font-size: .68rem; font-weight: 800; letter-spacing: .16em; }
.accounts-intro h2 { margin-bottom: 7px; font-family: Cambria, Georgia, serif; font-size: 1.65rem; }
.accounts-intro p { max-width: 720px; color: var(--muted); }
.account-cards { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(320px, .85fr); gap: 22px; align-items: stretch; }
.account-panel { min-width: 0; margin: 0; padding: 25px; }
.account-panel-heading { display: flex; align-items: flex-start; gap: 13px; margin-bottom: 22px; }
.account-panel-heading h3 { margin: 1px 0 5px; font-size: 1.08rem; }
.account-panel-heading p { margin: 0; color: var(--muted); font-size: .84rem; line-height: 1.5; }
.account-icon { flex: 0 0 38px; width: 38px; height: 38px; display: grid; place-items: center; border-radius: 12px; background: var(--sand); color: var(--ink-soft); font-size: 1.2rem; font-weight: 700; }
.account-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.account-fields--single { grid-template-columns: 1fr; gap: 17px; }
.account-field { display: block; min-width: 0; color: var(--ink-soft); font-size: .79rem; font-weight: 700; }
.account-field--wide { grid-column: 1 / -1; }
.account-field input, .account-field select { display: block; width: 100%; min-width: 0; min-height: 44px; margin-top: 7px; padding: 10px 12px; border: 1px solid var(--line); border-radius: 9px; background: #fff; color: var(--ink); font: 400 .9rem "Segoe UI", Roboto, Arial, sans-serif; }
.account-field input::placeholder { color: #9aa5a1; }
.account-field input:focus, .account-field select:focus { outline: none; border-color: var(--gold); box-shadow: 0 0 0 3px rgba(200, 164, 92, .16); }
.account-field small { display: block; margin-top: 6px; color: var(--muted); font-size: .75rem; font-weight: 400; line-height: 1.45; }
.account-submit { margin-top: 22px; min-height: 44px; }
.account-empty { margin: 14px 0 0; padding: 11px 13px; border-radius: 9px; background: var(--sand); color: var(--muted); font-size: .82rem; }
.hotel-accounts-page .alert { margin-bottom: 18px; }

@media (max-width: 1100px) {
    .account-cards { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
    .account-panel { padding: 20px 17px; }
    .account-fields { grid-template-columns: 1fr; gap: 14px; }
    .account-field--wide { grid-column: auto; }
    .accounts-intro h2 { font-size: 1.4rem; }
    .account-submit { width: 100%; }
}