/* ==========================================================================
   XMPP WebUI Gateway - Design System
   Single stylesheet for public pages and admin UI.
   Class vocabulary is a superset of the legacy portal (style.css) so
   ported templates keep working; new components are marked below.
   ========================================================================== */

:root {
    /* Brand + semantic palette */
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-soft: #eff6ff;
    --error-color: #dc2626;
    --error-soft: #fef2f2;
    --success-color: #16a34a;
    --success-soft: #f0fdf4;
    --warning-color: #d97706;
    --warning-soft: #fffbeb;
    --info-soft: #eff6ff;

    /* Surfaces (light) */
    --bg-color: #f1f5f9;
    --bg-gradient: radial-gradient(1200px 600px at 50% -10%, #dbeafe 0%, rgba(219, 234, 254, 0) 60%), var(--bg-color);
    --surface: #ffffff;
    --surface-2: #f8fafc;
    --text-color: #0f172a;
    --text-muted: #64748b;
    --border-color: #e2e8f0;

    --radius: 10px;
    --radius-sm: 6px;
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
    --shadow-md: 0 4px 16px rgba(15, 23, 42, 0.08);
    --ring: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

@media (prefers-color-scheme: dark) {
    :root {
        --primary-color: #3b82f6;
        --primary-hover: #60a5fa;
        --primary-soft: #172554;
        --error-soft: #450a0a;
        --success-soft: #052e16;
        --warning-soft: #451a03;
        --info-soft: #172554;

        --bg-color: #0b1220;
        --bg-gradient: radial-gradient(1200px 600px at 50% -10%, #1e3a8a33 0%, rgba(30, 58, 138, 0) 60%), var(--bg-color);
        --surface: #101a30;
        --surface-2: #0f172a;
        --text-color: #e2e8f0;
        --text-muted: #94a3b8;
        --border-color: #1e293b;
        --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
        --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.45);
        --ring: 0 0 0 3px rgba(59, 130, 246, 0.25);
    }
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    line-height: 1.5;
}

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

h1 { color: var(--text-color); margin: 0 0 20px; font-size: 24px; }
h2 { font-size: 20px; }
h3 { font-size: 16px; }

/* ---------- Public chrome: topbar + footer (new) ---------- */

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 24px;
    background: var(--surface);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 17px;
    color: var(--text-color);
    text-decoration: none;
}

.brand svg { display: block; }

.topnav { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }

.topnav a {
    color: var(--text-muted);
    text-decoration: none;
    padding: 7px 12px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 14px;
}

.topnav a:hover, .topnav a.active { background: var(--primary-soft); color: var(--primary-color); }

.page-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 24px 16px 48px;
}

.page-footer {
    text-align: center;
    color: var(--text-muted);
    font-size: 13px;
    padding: 18px;
    border-top: 1px solid var(--border-color);
}

.host-badge {
    background-color: var(--surface-2);
    border: 1px solid var(--border-color);
    padding: 4px 10px;
    border-radius: 9999px;
    font-weight: 500;
    font-size: 12px;
    color: var(--text-muted);
}

.host-selector, .lang-selector {
    padding: 6px 10px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--surface);
    color: var(--text-color);
    font-size: 13px;
    cursor: pointer;
}

.host-selector { max-width: 180px; }

/* ---------- Card / container (public forms) ---------- */

.container {
    max-width: 500px;
    width: 100%;
    margin: 40px auto;
    background: var(--surface);
    padding: 32px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.container.wide { max-width: 760px; }

/* ---------- Forms ---------- */

.registration-form, .stack-form { display: flex; flex-direction: column; gap: 16px; }

.form-group { display: flex; flex-direction: column; gap: 5px; }
.form-group.checkbox { flex-direction: row; align-items: center; gap: 8px; }
.form-group.checkbox input { width: auto; }

label { font-weight: 500; font-size: 14px; }

input, select, textarea {
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 15px;
    background: var(--surface);
    color: var(--text-color);
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: var(--ring);
}

input:invalid:focus { border-color: var(--error-color); }

small, .help-text { font-size: 12px; color: var(--text-muted); }

/* ---------- Buttons ---------- */

.submit-btn, .btn-primary, .btn-secondary, .btn-small {
    display: inline-block;
    border: none;
    border-radius: var(--radius-sm);
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
}

.submit-btn {
    background-color: var(--primary-color);
    color: #fff;
    padding: 12px;
    font-size: 16px;
    margin-top: 8px;
}

.submit-btn:hover { background-color: var(--primary-hover); }

.btn-primary {
    background-color: var(--primary-color);
    color: #fff;
    padding: 10px 20px;
}

.btn-primary:hover { background-color: var(--primary-hover); }

.btn-secondary {
    background-color: var(--text-muted);
    color: #fff;
    padding: 10px 20px;
}

.btn-secondary:hover { background: var(--text-color); color: var(--bg-color); }

.btn-small { padding: 6px 12px; font-size: 13px; background-color: var(--primary-color); color: #fff; }
.btn-small:hover { background-color: var(--primary-hover); }

.btn-danger { background-color: var(--error-color) !important; }
.btn-danger:hover { background-color: #b91c1c !important; }

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
}

.btn-outline:hover { border-color: var(--primary-color); color: var(--primary-color); }

/* ---------- Alerts ---------- */

.error-message, .alert-error {
    background-color: var(--error-soft);
    border: 1px solid var(--error-color);
    color: var(--error-color);
    padding: 12px 14px;
    border-radius: var(--radius-sm);
}

.success-message, .alert-success {
    background-color: var(--success-soft);
    border: 1px solid var(--success-color);
    color: var(--success-color);
    padding: 14px;
    border-radius: var(--radius-sm);
}

.success-message p { margin: 8px 0; }

.alert-info, .admin-banner {
    background-color: var(--info-soft);
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
}

.admin-banner p { margin: 4px 0; }
.admin-banner strong { color: var(--primary-color); }

.alert-warning {
    background-color: var(--warning-soft);
    border: 1px solid var(--warning-color);
    color: var(--warning-color);
    padding: 12px 14px;
    border-radius: var(--radius-sm);
}

.note { font-size: 14px; color: var(--text-muted); margin-top: 16px; }
.back-link { display: inline-block; color: var(--primary-color); text-decoration: none; margin-top: 20px; }
.back-link:hover { text-decoration: underline; }

.admin-actions { display: flex; gap: 12px; margin-top: 20px; flex-wrap: wrap; }

/* ---------- Admin layout (legacy class vocabulary) ---------- */

.admin-container { max-width: 1100px; width: 100%; margin: 0 auto; padding: 24px 16px 48px; }

.admin-header {
    background: var(--surface);
    padding: 16px 24px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 24px;
}

.admin-header h1 { margin: 0; font-size: 20px; display: flex; align-items: center; gap: 10px; }

.admin-nav { display: flex; gap: 6px; flex-wrap: wrap; }

.admin-nav a {
    color: var(--text-muted);
    text-decoration: none;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 14px;
}

.admin-nav a:hover, .admin-nav a.active { background-color: var(--primary-soft); color: var(--primary-color); }

.admin-user { display: flex; align-items: center; gap: 12px; font-size: 14px; color: var(--text-muted); }

.admin-main {
    background: var(--surface);
    padding: 24px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.admin-main h2 { margin-top: 0; }
.admin-main h2 .count { color: var(--text-muted); font-weight: 400; font-size: 16px; }

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card { background-color: var(--surface-2); border: 1px solid var(--border-color); padding: 20px; border-radius: var(--radius); }
.stat-card h3 { margin: 0 0 8px; font-size: 13px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; }
.stat-value { margin: 0 0 8px; font-size: 32px; font-weight: 600; color: var(--primary-color); }
.stat-card a, .stat-card span { font-size: 14px; color: var(--text-muted); }

.admin-section { margin-top: 24px; }
.admin-toolbar { margin-bottom: 16px; display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }

.admin-table { width: 100%; border-collapse: collapse; font-size: 14px; }

.admin-table th, .admin-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.admin-table th { font-weight: 600; color: var(--text-muted); text-transform: uppercase; font-size: 12px; letter-spacing: 0.05em; }
.admin-table td.actions { display: flex; gap: 8px; flex-wrap: wrap; }

.inline-form { display: inline-flex; align-items: center; gap: 6px; }
.inline-form input[type="password"], .inline-form input[type="text"] { padding: 6px 8px; font-size: 13px; width: 160px; }

.admin-form { max-width: 500px; }
.admin-form .form-group { margin-bottom: 16px; }

/* ---------- Portal home (new) ---------- */

.home-wrap { max-width: 860px; width: 100%; margin: 48px auto; text-align: center; }

.home-hero {
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    padding: 56px 32px;
}

.home-hero h1 { font-size: 30px; margin-bottom: 12px; }
.home-hero p.lead { color: var(--text-muted); font-size: 16px; max-width: 520px; margin: 0 auto 28px; }

.home-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-bottom: 8px; }

.home-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-top: 24px;
    text-align: left;
}

.home-card {
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow-sm);
}

.home-card h3 { margin: 0 0 6px; color: var(--primary-color); }
.home-card p { margin: 0; color: var(--text-muted); font-size: 14px; }

/* ---------- OAuth consent (new) ---------- */

.scope-list { list-style: none; margin: 16px 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.scope-list li {
    background: var(--surface-2);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
}

/* ---------- RBAC matrix badges (new) ---------- */

.badge-allow, .badge-deny, .badge-none {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 9999px;
    font-size: 12px;
    font-weight: 600;
}

.badge-allow { background: var(--success-soft); color: var(--success-color); border: 1px solid var(--success-color); }
.badge-deny { background: var(--error-soft); color: var(--error-color); border: 1px solid var(--error-color); }
.badge-none { background: var(--surface-2); color: var(--text-muted); border: 1px solid var(--border-color); }

.rbac-matrix td { vertical-align: middle; }
.rbac-diff { text-decoration: underline dotted; text-underline-offset: 3px; }

/* ---------- OAuth page layouts (new) ---------- */

.oauth-split {
    flex: 1;
    display: flex;
    width: 100%;
    max-width: 960px;
    margin: 40px auto;
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.oauth-split-panel {
    flex: 0 0 320px;
    background: var(--primary-color);
    color: #fff;
    padding: 40px 32px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.oauth-split-panel h1 { color: #fff; font-size: 24px; margin: 0 0 10px; }
.oauth-split-panel p { color: rgba(255, 255, 255, 0.9); font-size: 15px; }
.oauth-split-host { margin-top: 24px; font-weight: 600; opacity: 0.8; font-size: 13px; }

.oauth-split-form { flex: 1; padding: 40px 36px; }
.oauth-split-form h2 { margin-top: 0; }

.oauth-center-hero {
    background: var(--primary-color);
    color: #fff;
    text-align: center;
    padding: 48px 20px 56px;
}

.oauth-center-hero h1 { color: #fff; font-size: 28px; margin: 0 0 8px; }
.oauth-center-hero p { color: rgba(255, 255, 255, 0.9); max-width: 520px; margin: 0 auto; }

.oauth-center-card { margin-top: -32px; position: relative; }

@media (max-width: 720px) {
    .oauth-split { flex-direction: column; margin: 20px auto; }
    .oauth-split-panel { flex: none; padding: 28px 24px; }
    .oauth-split-form { padding: 28px 22px; }
}

/* ---------- Email template gallery (new) ---------- */

.template-gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 8px 0 12px; }

.gallery-card {
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    padding: 12px 14px;
    cursor: pointer;
    background: var(--surface);
}

.gallery-card strong { display: block; font-size: 14px; margin-bottom: 2px; }
.gallery-card small { color: var(--text-muted); font-size: 12px; }
.gallery-card:hover { border-color: var(--primary-color); }
.gallery-card.active { border-color: var(--primary-color); background: var(--primary-soft); }

.gallery-preview iframe {
    width: 100%;
    height: 340px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background: #fff;
}

@media (max-width: 600px) { .template-gallery { grid-template-columns: 1fr; } }

/* ---------- Utilities ---------- */

.text-muted { color: var(--text-muted); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 13px; }
.mt-1 { margin-top: 8px; } .mt-2 { margin-top: 16px; } .mt-3 { margin-top: 24px; }
.mb-2 { margin-bottom: 16px; }
.flex { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

@media (max-width: 600px) {
    .container { padding: 22px; margin: 20px auto; }
    .admin-header { flex-direction: column; align-items: flex-start; }
    .home-hero { padding: 36px 20px; }
}

.admin-brand-logo {
min-width: 42px;
height: 42px;
}

img.admin-brand-logo {
width: 42px;
height:42px;
object-fit:unset;
}