:root {
    --paper: #faf7f2;
    --surface: #ffffff;
    --ink: #1e293b;
    --ink-soft: #64748b;
    --line: #e7e2d9;
    --teal: #0f766e;
    --teal-dark: #115e59;
    --teal-soft: #ccfbf1;
    --amber: #d97706;
    --amber-soft: #fef3c7;
    --red: #b91c1c;
    --red-soft: #fee2e2;
    --radius: 12px;
    --shadow: 0 1px 3px rgba(30, 41, 59, .08), 0 4px 14px rgba(30, 41, 59, .05);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: "Public Sans", system-ui, sans-serif;
    font-size: 15px;
    line-height: 1.55;
}

h1, h2, h3, h4 { font-family: "Sora", sans-serif; margin: 0 0 .5em; color: var(--ink); }
h1 { font-size: 1.9rem; }
h2 { font-size: 1.3rem; }
a { color: var(--teal); text-decoration: none; }
a:hover { color: var(--teal-dark); }

.topbar {
    display: flex; align-items: center; gap: 24px;
    padding: 12px 28px;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    position: sticky; top: 0; z-index: 10;
}
.brand { display: flex; align-items: center; gap: 10px; font-family: "Sora", sans-serif; font-weight: 700; color: var(--ink); }
.brand-mark {
    background: var(--teal); color: #fff; border-radius: 8px;
    padding: 4px 8px; font-size: .8rem; letter-spacing: .05em;
}
.topnav { display: flex; gap: 16px; flex: 1; flex-wrap: wrap; }
.topnav a { color: var(--ink-soft); font-weight: 500; }
.topnav a:hover { color: var(--teal); }
.topnav .admin-link { color: var(--amber); }
.topbar-actions { display: flex; gap: 8px; align-items: center; }
.inline-form { display: inline; margin: 0; }

.page { max-width: 1080px; margin: 0 auto; padding: 32px 24px 64px; }

.hero {
    background: linear-gradient(135deg, #134e4a 0%, #0f766e 60%, #14b8a6 100%);
    color: #fff; border-radius: 16px; padding: 56px 48px; margin-bottom: 32px;
}
.hero h1 { color: #fff; font-size: 2.4rem; }
.hero p { color: #d7f5ef; max-width: 560px; }
.hero .btn-primary { background: var(--amber); }
.hero .btn-primary:hover { background: #b45309; }

.card {
    background: var(--surface); border: 1px solid var(--line);
    border-radius: var(--radius); padding: 20px 24px; box-shadow: var(--shadow);
    margin-bottom: 20px;
}
.card h2 { margin-top: 0; }

.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 800px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.stat { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 20px; box-shadow: var(--shadow); }
.stat .stat-value { font-family: "Sora", sans-serif; font-size: 1.6rem; font-weight: 700; }
.stat .stat-label { color: var(--ink-soft); font-size: .85rem; }

.btn {
    display: inline-block; border: 1px solid transparent; border-radius: 8px;
    padding: 8px 16px; font-weight: 600; font-size: .9rem; cursor: pointer;
    font-family: inherit;
}
.btn-primary { background: var(--teal); color: #fff; }
.btn-primary:hover { background: var(--teal-dark); color: #fff; }
.btn-ghost { background: transparent; color: var(--ink-soft); border-color: var(--line); }
.btn-ghost:hover { color: var(--teal); border-color: var(--teal); }
.btn-danger { background: var(--red); color: #fff; }
.btn-sm { padding: 4px 10px; font-size: .8rem; }

table.data {
    width: 100%; border-collapse: collapse; background: var(--surface);
    border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
    box-shadow: var(--shadow); margin-bottom: 20px;
}
table.data th, table.data td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--line); }
table.data th { background: #f5f1ea; font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; color: var(--ink-soft); }
table.data tr:last-child td { border-bottom: none; }

.badge {
    display: inline-block; padding: 2px 10px; border-radius: 999px;
    font-size: .75rem; font-weight: 600;
    background: var(--teal-soft); color: var(--teal-dark);
}
.badge-warn { background: var(--amber-soft); color: var(--amber); }
.badge-bad { background: var(--red-soft); color: var(--red); }
.badge-muted { background: #eef2f7; color: var(--ink-soft); }

.flash { max-width: 1080px; margin: 16px auto 0; padding: 12px 20px; border-radius: 8px; }
.flash-ok { background: var(--teal-soft); color: var(--teal-dark); }
.flash-err { background: var(--red-soft); color: var(--red); }

form .field { margin-bottom: 14px; }
label { display: block; font-weight: 600; font-size: .85rem; margin-bottom: 4px; }
input[type=text], input[type=email], input[type=password], input[type=number],
input[type=date], select, textarea {
    width: 100%; padding: 8px 12px; border: 1px solid var(--line); border-radius: 8px;
    font-family: inherit; font-size: .95rem; background: #fff; color: var(--ink);
}
textarea { min-height: 110px; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--teal-soft); border-color: var(--teal); }
.form-row { display: flex; gap: 12px; flex-wrap: wrap; }
.form-row .field { flex: 1; min-width: 160px; }
.validation-summary-errors, .field-validation-error { color: var(--red); font-size: .85rem; }

.empty {
    text-align: center; padding: 48px 20px; color: var(--ink-soft);
    border: 1px dashed var(--line); border-radius: var(--radius); background: var(--surface);
}

.pagehead { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }
.pagehead p { color: var(--ink-soft); margin: 0; }

.filters { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.filters a { padding: 4px 12px; border-radius: 999px; border: 1px solid var(--line); color: var(--ink-soft); font-size: .85rem; }
.filters a.active { background: var(--teal); color: #fff; border-color: var(--teal); }

.message { border: 1px solid var(--line); border-radius: 10px; padding: 12px 16px; margin-bottom: 12px; background: var(--surface); }
.message.internal { background: var(--amber-soft); border-color: #f3d38a; }
.message .meta { font-size: .8rem; color: var(--ink-soft); margin-bottom: 6px; }

.footer {
    border-top: 1px solid var(--line); padding: 20px 28px; color: var(--ink-soft);
    font-size: .85rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px;
}

.price { font-family: "Sora", sans-serif; font-size: 2rem; font-weight: 700; }
.price span { font-size: .9rem; color: var(--ink-soft); font-weight: 400; }
.checklist { list-style: none; padding: 0; margin: 12px 0; }
.checklist li { padding: 4px 0 4px 24px; position: relative; }
.checklist li::before { content: "✓"; position: absolute; left: 0; color: var(--teal); font-weight: 700; }

/* ===== Commercial Event Hub administration console ===== */
.admin-mode { background: #f6f8fb; }
.admin-mode .topbar {
    height: 68px; padding: 0 28px; border-bottom-color: #e5eaf0;
    box-shadow: 0 1px 0 rgba(15,23,42,.03); z-index: 30;
}
.admin-mode .brand-mark { border-radius: 9px; padding: 5px 9px; }
.admin-console-label {
    display: inline-flex; align-items: center; height: 30px; padding: 0 11px;
    border: 1px solid #dbe3ea; border-radius: 999px; color: #64748b;
    background: #f8fafc; font-size: .78rem; font-weight: 700; letter-spacing: .02em;
}
.admin-mode .topbar-actions .btn { background: #fff; }
.admin-mode .page {
    max-width: none; margin: 0 0 0 248px; padding: 34px 36px 72px;
    min-height: calc(100vh - 68px); overflow-x: hidden;
}
.admin-mode .footer { margin-left: 248px; background: #fff; }
.admin-sidebar {
    position: fixed; top: 68px; bottom: 0; left: 0; width: 248px; z-index: 20;
    overflow-y: auto; padding: 22px 14px 88px; background: #0f172a; color: #cbd5e1;
    border-right: 1px solid #172033; scrollbar-width: thin;
}
.admin-sidebar-title {
    padding: 0 12px 14px; color: #f8fafc; font-family: "Sora", sans-serif;
    font-size: .76rem; font-weight: 700; letter-spacing: .12em;
}
.admin-nav-group {
    padding: 19px 12px 7px; color: #64748b; font-size: .66rem;
    font-weight: 700; letter-spacing: .12em;
}
.admin-nav-item {
    display: flex; align-items: center; gap: 11px; min-height: 39px; padding: 8px 11px;
    margin: 2px 0; border-radius: 8px; color: #cbd5e1; font-size: .87rem; font-weight: 500;
}
.admin-nav-item:hover { background: #172033; color: #fff; }
.admin-nav-item.active { background: #0f766e; color: #fff; box-shadow: inset 3px 0 0 #5eead4; }
.nav-icon { width: 20px; text-align: center; color: #94a3b8; font-size: .95rem; font-weight: 700; }
.admin-nav-item.active .nav-icon, .admin-nav-item:hover .nav-icon { color: #fff; }
.admin-sidebar-footer {
    position: fixed; left: 0; bottom: 0; width: 248px; padding: 15px 25px;
    background: #0b1220; border-top: 1px solid #1e293b;
}
.admin-sidebar-footer a { color: #94a3b8; font-size: .8rem; font-weight: 600; }
.admin-sidebar-footer a:hover { color: #fff; }

.admin-mode .pagehead { margin: 0 0 24px; padding-bottom: 18px; border-bottom: 1px solid #e5eaf0; }
.admin-mode .pagehead h1 { font-size: 1.7rem; letter-spacing: -.025em; }
.admin-mode .pagehead p { font-size: .9rem; }
.admin-mode .card {
    border-color: #e4e9ef; border-radius: 11px; box-shadow: 0 1px 2px rgba(15,23,42,.04);
    padding: 22px 24px;
}
.admin-mode .card h2 { font-size: 1.05rem; }
.admin-mode .stat {
    position: relative; min-height: 112px; padding: 20px 21px; border-color: #e4e9ef;
    border-radius: 11px; box-shadow: 0 1px 2px rgba(15,23,42,.04); overflow: hidden;
}
.admin-mode .stat::before { content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 3px; background: #0f766e; }
.admin-mode .stat .stat-value { font-size: 1.85rem; letter-spacing: -.04em; }
.admin-mode .stat .stat-label { margin-top: 5px; font-size: .79rem; font-weight: 600; text-transform: uppercase; letter-spacing: .045em; }
.admin-mode table.data {
    border-color: #e4e9ef; border-radius: 10px; box-shadow: 0 1px 2px rgba(15,23,42,.03);
}
.admin-mode table.data th { background: #f8fafc; color: #64748b; padding: 11px 14px; border-bottom-color: #dfe6ed; }
.admin-mode table.data td { padding: 12px 14px; border-bottom-color: #edf1f5; vertical-align: middle; }
.admin-mode table.data tbody tr:hover { background: #fbfcfd; }
.admin-mode input[type=text], .admin-mode input[type=email], .admin-mode input[type=password],
.admin-mode input[type=number], .admin-mode input[type=date], .admin-mode select, .admin-mode textarea {
    border-color: #d7dee7; background: #fff; min-height: 39px;
}
.admin-mode label { color: #475569; }
.admin-mode .btn { border-radius: 7px; }
.admin-mode .filters { margin: -4px 0 18px; }
.admin-mode .filters a { background: #fff; }
.admin-mode .badge { padding: 3px 9px; }
.admin-mode .empty { background: #fff; border-color: #d7dee7; }

@media (max-width: 1050px) {
    .admin-sidebar { width: 210px; }
    .admin-sidebar-footer { width: 210px; }
    .admin-mode .page, .admin-mode .footer { margin-left: 210px; }
    .admin-mode .page { padding-left: 24px; padding-right: 24px; }
}
@media (max-width: 760px) {
    .admin-mode .topbar { padding: 0 16px; }
    .admin-console-label { display: none; }
    .admin-sidebar { position: static; width: auto; height: auto; padding: 10px 12px; display: flex; gap: 6px; overflow-x: auto; background: #0f172a; }
    .admin-sidebar-title, .admin-nav-group, .admin-sidebar-footer { display: none; }
    .admin-nav-item { flex: 0 0 auto; min-height: 36px; padding: 7px 10px; }
    .admin-mode .page, .admin-mode .footer { margin-left: 0; }
    .admin-mode .page { padding: 22px 16px 54px; }
}

/* CEH bilingual language switcher */
.language-switcher{display:inline-flex;align-items:center;gap:5px;margin:0 4px 0 0;white-space:nowrap;color:var(--ink-soft);font-size:.82rem}
.language-button{border:0;background:transparent;padding:5px 3px;color:var(--ink-soft);font:inherit;font-weight:600;cursor:pointer}
.language-button:hover,.language-button.active{color:var(--teal,#0f857c);text-decoration:underline;text-underline-offset:3px}
@media(max-width:900px){.language-switcher{order:-1}.topbar-actions{gap:6px}}