:root {
    --bg: #f3f5fb;
    --panel: #ffffff;
    --panel-soft: #f8faff;
    --text: #182033;
    --muted: #667085;
    --border: #d7deea;
    --primary: #1746d1;
    --primary-soft: #e9f0ff;
    --danger: #c62828;
    --danger-soft: #ffe7e7;
    --success: #0f8b5f;
    --success-soft: #e7f8f1;
    --warning: #b56d00;
    --warning-soft: #fff1d9;
    --purple: #6f42c1;
    --purple-soft: #f0e9ff;
    --slate-soft: #eef2f7;
    --shadow: 0 18px 40px rgba(16, 24, 40, 0.08);
    --radius: 18px;
}

html[data-theme="dark"] {
    --bg: #0f1728;
    --panel: #141d31;
    --panel-soft: #0f1a2d;
    --text: #e7eefc;
    --muted: #9cadc8;
    --border: #26324b;
    --primary: #7ea6ff;
    --primary-soft: rgba(126, 166, 255, 0.12);
    --danger: #ff8a8a;
    --danger-soft: rgba(255, 138, 138, 0.12);
    --success: #7ee0b7;
    --success-soft: rgba(126, 224, 183, 0.13);
    --warning: #ffd37f;
    --warning-soft: rgba(255, 211, 127, 0.13);
    --purple: #c8a7ff;
    --purple-soft: rgba(200, 167, 255, 0.13);
    --slate-soft: #1b263d;
    --shadow: 0 18px 45px rgba(0, 0, 0, 0.28);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    font-family: Inter, Arial, Helvetica, sans-serif;
    background: radial-gradient(circle at top, rgba(23, 70, 209, 0.08), transparent 26%), var(--bg);
    color: var(--text);
    min-height: 100vh;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.site-shell { max-width: 1480px; margin: 0 auto; }
.page { padding: 1.25rem; }

.topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    display: grid;
    grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
    gap: 1.1rem 1.5rem;
    align-items: center;
    padding: 1rem 1.25rem;
    background: color-mix(in srgb, var(--panel) 92%, transparent);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}

.brand-wrap { min-width: 0; }
.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.95rem;
    color: var(--text);
    text-decoration: none;
    min-width: 0;
}
.brand:hover { text-decoration: none; }
.brand-mark {
    display: inline-grid;
    place-items: center;
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--primary), #2fb2ff);
    color: white;
    font-weight: 800;
    letter-spacing: 0.08em;
    box-shadow: var(--shadow);
    flex: 0 0 auto;
}
.brand-copy {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    min-width: 0;
}
.brand strong {
    display: block;
    font-size: 1.05rem;
    line-height: 1.2;
}
.brand small {
    display: block;
    color: var(--muted);
    line-height: 1.25;
}

.topbar-actions {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.75rem;
    width: 100%;
    min-width: 0;
}
.topbar-utility-row {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.75rem;
    flex-wrap: wrap;
    width: 100%;
}
.nav-search {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    min-width: min(100%, 360px);
    max-width: 430px;
    width: 100%;
    padding: 0.32rem;
    background: var(--panel-soft);
    border: 1px solid var(--border);
    border-radius: 16px;
}
.nav-search input {
    flex: 1;
    min-width: 220px;
    border: 0;
    background: transparent;
    color: var(--text);
    padding: 0.55rem 0.7rem;
    outline: none;
}
.nav-search input::placeholder { color: var(--muted); }
.nav-search .btn { white-space: nowrap; }

.nav-links {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    flex-wrap: wrap;
    gap: 0.4rem 0.5rem;
    width: 100%;
    min-width: 0;
}
.nav-links > * {
    flex: 0 0 auto;
}
.nav-links a,
.notification-nav-link {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.68rem 0.9rem;
    border-radius: 12px;
    color: var(--text);
    font-weight: 600;
    line-height: 1;
    text-decoration: none;
    white-space: nowrap;
}
.nav-links a:hover,
.notification-nav-link:hover,
.notification-menu-wrap:hover > .notification-nav-link {
    background: var(--panel-soft);
    text-decoration: none;
}

.theme-toggle {
    appearance: none;
    border: 1px solid var(--border);
    background: var(--panel-soft);
    color: var(--text);
    width: 42px;
    height: 42px;
    border-radius: 14px;
    cursor: pointer;
    font-size: 1.05rem;
    flex: 0 0 auto;
}
.theme-toggle:hover { transform: translateY(-1px); }
.topbar-actions .theme-toggle {
    align-self: center;
}

.notification-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 22px;
    height: 22px;
    padding: 0 0.4rem;
    border-radius: 999px;
    background: #e63d3d;
    color: #fff;
    font-size: 0.72rem;
    font-weight: 700;
    line-height: 1;
}

.notification-menu-wrap {
    position: relative;
    display: inline-flex;
    align-items: center;
    flex: 0 0 auto;
}
.notification-dropdown {
    position: absolute;
    right: 0;
    top: calc(100% + 0.45rem);
    width: min(410px, 92vw);
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: var(--shadow);
    overflow: hidden;
    z-index: 80;
    display: block;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(10px);
    transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s ease;
}
.notification-menu-wrap:hover .notification-dropdown,
.notification-menu-wrap:focus-within .notification-dropdown,
.notification-dropdown.show {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
}
.notification-dropdown-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.75rem;
    padding: 0.95rem 1rem;
    border-bottom: 1px solid var(--border);
}
.notification-dropdown-head strong { font-size: 0.96rem; }
.notification-dropdown-head a {
    white-space: nowrap;
    font-size: 0.9rem;
}
.nav-links-user {
    margin-top: -0.1rem;
}
.notification-list-mini { max-height: 360px; overflow: auto; }
.notification-mini {
    display: block;
    padding: 0.95rem 1rem;
    border-bottom: 1px solid var(--border);
    color: var(--text);
    text-decoration: none;
}
.notification-mini:hover { background: var(--panel-soft); text-decoration: none; }
.notification-mini-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 0.85rem;
}
.notification-mini-top strong {
    display: block;
    font-size: 0.94rem;
    line-height: 1.35;
}
.notification-mini-top small {
    color: var(--muted);
    white-space: nowrap;
    font-size: 0.8rem;
    line-height: 1.3;
}
.notification-mini-message {
    display: block;
    margin-top: 0.32rem;
    color: var(--muted);
    line-height: 1.45;
}
.notification-mini.unread { background: color-mix(in srgb, var(--primary-soft) 70%, transparent); }
.empty-mini { padding: 1rem; color: var(--muted); }

.panel {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.2rem;
    box-shadow: var(--shadow);
}
.inner-panel { padding: 1rem; margin: 1rem 0 1.25rem; background: var(--panel-soft); }
.hero { margin-bottom: 1rem; }
.hero-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 1rem;
    align-items: stretch;
}
.grid { display: grid; gap: 1rem; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.dashboard-panels { margin-bottom: 1rem; }
.kpi {
    background: linear-gradient(180deg, var(--panel), var(--panel-soft));
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 1rem;
}
.kpi strong { display: block; font-size: 2rem; margin-top: 0.35rem; }
.kpi-danger { border-color: color-mix(in srgb, var(--danger) 35%, var(--border)); }

.section-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}
.section-title h1,
.section-title h2,
.panel h1,
.panel h2,
.panel h3 { margin: 0 0 0.35rem; }
.stack-on-mobile { align-items: flex-start; }
.inline-actions, .inline-badges {
    display: flex;
    gap: 0.65rem;
    align-items: center;
    flex-wrap: wrap;
}
.top-space-sm { margin-top: 0.75rem; }
.muted { color: var(--muted); }
.eyebrow {
    font-size: 0.82rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 0.35rem;
}

.btn {
    appearance: none;
    border: 1px solid transparent;
    border-radius: 14px;
    padding: 0.7rem 1rem;
    font-weight: 700;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-secondary { background: var(--panel-soft); color: var(--text); border-color: var(--border); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn-danger { background: color-mix(in srgb, var(--danger) 16%, transparent); color: var(--danger); border-color: color-mix(in srgb, var(--danger) 30%, var(--border)); }

.alert {
    border-radius: 16px;
    padding: 0.95rem 1rem;
    margin-bottom: 1rem;
    border: 1px solid var(--border);
}
.alert-success { background: var(--success-soft); border-color: color-mix(in srgb, var(--success) 28%, var(--border)); }
.alert-error { background: var(--danger-soft); border-color: color-mix(in srgb, var(--danger) 28%, var(--border)); }
.alert-warning { background: var(--warning-soft); border-color: color-mix(in srgb, var(--warning) 28%, var(--border)); }

.auth-wrap {
    max-width: 760px;
    margin: 3rem auto;
}

.form-field { display: flex; flex-direction: column; gap: 0.35rem; margin-bottom: 0.95rem; }
.form-field label { font-weight: 700; }
.upload-field {
    display: grid;
    gap: 0.45rem;
    padding: 0.9rem 1rem;
    border: 1px dashed color-mix(in srgb, var(--primary) 28%, var(--border));
    border-radius: 16px;
    background: color-mix(in srgb, var(--primary-soft) 34%, var(--panel-soft));
}
.upload-field input[type="file"] {
    width: 100%;
    color: var(--text);
}
.upload-field input[type="file"]::file-selector-button {
    margin-right: 0.8rem;
    border: 1px solid var(--border);
    background: var(--panel);
    color: var(--text);
    border-radius: 12px;
    padding: 0.62rem 0.9rem;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}
.image-preview-grid,
.attachment-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(135px, 1fr));
    gap: 0.8rem;
    margin-top: 0.7rem;
}
.image-preview-card,
.attachment-card {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
    padding: 0.55rem;
    border-radius: 16px;
    border: 1px solid var(--border);
    background: var(--panel);
    color: var(--text);
    text-decoration: none;
    box-shadow: 0 8px 20px rgba(16, 24, 40, 0.06);
}
.image-preview-card:hover,
.attachment-card:hover {
    text-decoration: none;
    transform: translateY(-1px);
}
.image-preview-thumb,
.attachment-thumb {
    display: block;
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    border-radius: 12px;
    background: var(--panel-soft);
    border: 1px solid var(--border);
}
.image-preview-name,
.attachment-meta {
    display: block;
    font-size: 0.82rem;
    color: var(--muted);
    line-height: 1.35;
    word-break: break-word;
}
.form-grid, .form-grid-3, .builder-grid {
    display: grid;
    gap: 1rem;
}
.form-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.form-grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.builder-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
input[type="text"], input[type="email"], input[type="password"], input[type="date"], input[type="number"], select, textarea {
    width: 100%;
    border: 1px solid var(--border);
    background: var(--panel-soft);
    color: var(--text);
    border-radius: 14px;
    padding: 0.8rem 0.95rem;
    font: inherit;
}
textarea { resize: vertical; }
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--primary) 14%, transparent);
}

.table-wrap { overflow-x: auto; }
.table {
    width: 100%;
    border-collapse: collapse;
}
.table th, .table td {
    padding: 0.85rem 0.7rem;
    border-bottom: 1px solid var(--border);
    text-align: left;
    vertical-align: top;
}
.table th { color: var(--muted); font-size: 0.92rem; }
.table-subtext { color: var(--muted); font-size: 0.85rem; margin-top: 0.2rem; }

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.3rem 0.65rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 0.02em;
}
.badge-blue { background: color-mix(in srgb, var(--primary) 16%, transparent); color: var(--primary); }
.badge-amber { background: var(--warning-soft); color: var(--warning); }
.badge-green { background: var(--success-soft); color: var(--success); }
.badge-red { background: var(--danger-soft); color: var(--danger); }
.badge-purple { background: var(--purple-soft); color: var(--purple); }
.badge-slate { background: var(--slate-soft); color: var(--muted); }

.hero h1 { margin-top: 0; font-size: clamp(1.8rem, 2vw, 2.5rem); }
.empty-state {
    border: 1px dashed var(--border);
    border-radius: 16px;
    padding: 1rem;
    color: var(--muted);
    background: var(--panel-soft);
}

.ticket-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(320px, 0.9fr);
    gap: 1rem;
}
.ticket-meta { display: grid; gap: 1rem; }
.details-list, .meta-list, .list-stack { display: grid; gap: 0.8rem; }
.detail-row, .meta-item, .list-item {
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 0.8rem 0.9rem;
    background: var(--panel-soft);
}
.detail-row { display: grid; grid-template-columns: 180px 1fr; gap: 0.85rem; align-items: start; }
.detail-row > span,
.detail-row > div {
    min-width: 0;
}
.list-item { display: block; color: var(--text); }
.list-item:hover { text-decoration: none; background: color-mix(in srgb, var(--primary-soft) 55%, var(--panel-soft)); }

.timeline {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 0.9rem;
}
.timeline-item {
    position: relative;
    padding: 0.95rem 1rem 0.95rem 1.1rem;
    border-left: 4px solid color-mix(in srgb, var(--primary) 35%, transparent);
    border-radius: 0 14px 14px 0;
    background: var(--panel-soft);
}
.timeline-item h4 { margin: 0 0 0.25rem; }
.timeline-item small { display: block; color: var(--muted); margin-bottom: 0.55rem; }
.timeline-attachments { margin-top: 0.75rem; }
.panel-rule { border: 0; border-top: 1px solid var(--border); margin: 1.4rem 0; }

.chat-panel { display: grid; gap: 1rem; }
.chat-messages {
    display: grid;
    gap: 0.75rem;
    max-height: 420px;
    overflow: auto;
    padding-right: 0.2rem;
}
.chat-message {
    border: 1px solid var(--border);
    border-radius: 16px 16px 16px 6px;
    background: var(--panel-soft);
    padding: 0.8rem 0.95rem;
}
.chat-message.mine {
    border-radius: 16px 16px 6px 16px;
    background: color-mix(in srgb, var(--primary-soft) 72%, var(--panel-soft));
}
.chat-message-head {
    display: flex;
    justify-content: space-between;
    gap: 0.7rem;
    margin-bottom: 0.35rem;
    color: var(--muted);
    font-size: 0.85rem;
}
.chat-message-body { white-space: pre-wrap; }
.chat-entry-field { margin-bottom: 0; }

.notification-list-full {
    display: grid;
    gap: 0.8rem;
}
.notification-list-full.compact .notification-card { padding: 0.9rem; }
.notification-card {
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1rem;
    background: var(--panel-soft);
    color: var(--text);
    text-decoration: none;
}
.notification-card:hover { text-decoration: none; }
.notification-card.unread {
    background: color-mix(in srgb, var(--primary-soft) 60%, var(--panel-soft));
    border-color: color-mix(in srgb, var(--primary) 25%, var(--border));
}
.notification-card-head {
    display: flex;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.35rem;
}
.notification-card-head span { color: var(--muted); font-size: 0.9rem; }

.builder-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-top: 1rem;
    margin-bottom: 1rem;
}
.builder-rows { display: grid; gap: 0.9rem; }
.builder-row {
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1rem;
    background: var(--panel-soft);
}
.builder-actions {
    display: flex;
    justify-content: flex-end;
    margin-top: 0.5rem;
}

.template-intro {
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 0.95rem 1rem;
    margin-bottom: 1rem;
    background: color-mix(in srgb, var(--primary-soft) 55%, var(--panel-soft));
}
.template-intro p { margin: 0.45rem 0 0; color: var(--muted); }
.template-intro-head {
    display: flex;
    gap: 0.65rem;
    align-items: center;
    flex-wrap: wrap;
}

.sla-grid {
    display: grid;
    gap: 0.85rem;
}
.sla-card {
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 0.85rem 0.95rem;
    background: var(--panel-soft);
}
.sla-card strong { display: block; margin: 0.3rem 0 0.45rem; }

.soft {
    background: var(--panel-soft);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 0.14rem 0.38rem;
}
.ticket-header-card { margin-bottom: 1rem; }

@media (max-width: 1100px) {
    .topbar {
        grid-template-columns: 1fr;
        align-items: stretch;
    }
    .topbar-actions {
        align-items: stretch;
    }
    .topbar-utility-row { justify-content: space-between; }
    .nav-links { justify-content: flex-start; }
    .nav-search {
        max-width: none;
        width: 100%;
    }
    .nav-search input { min-width: 0; }
    .hero-grid,
    .ticket-layout,
    .grid-2,
    .form-grid-3,
    .form-grid,
    .builder-grid { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
    .page { padding: 0.85rem; }
    .topbar { padding: 0.85rem; }
    .topbar-actions { align-items: stretch; }
    .topbar-utility-row {
        flex-direction: column;
        align-items: stretch;
    }
    .nav-links {
        justify-content: flex-start;
        gap: 0.25rem;
    }
    .nav-links a,
    .notification-nav-link { padding: 0.62rem 0.78rem; }
    .detail-row { grid-template-columns: 1fr; }
    .section-title { flex-direction: column; align-items: flex-start; }
    .stack-on-mobile { flex-direction: column; }
    .brand strong { font-size: 0.95rem; }
    .notification-dropdown {
        left: 0;
        right: auto;
        width: min(92vw, 360px);
    }
}


@media (max-width: 900px) {
    .image-preview-grid,
    .attachment-gallery {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }
}