:root {
    --bg: #f1f5f9;
    --surface: #ffffff;
    --surface-soft: #f8fafc;
    --border: #e2e8f0;
    --border-strong: #cbd5e1;
    --text: #0f172a;
    --text-secondary: #334155;
    --muted: #64748b;
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --primary-soft: #eef2ff;
    --success: #059669;
    --success-bg: #ecfdf5;
    --success-border: #a7f3d0;
    --warning: #d97706;
    --warning-bg: #fffbeb;
    --warning-border: #fde68a;
    --danger: #dc2626;
    --danger-bg: #fef2f2;
    --danger-border: #fecaca;
    --info: #0284c7;
    --info-bg: #f0f9ff;
    --info-border: #bae6fd;
    --radius: 14px;
    --radius-sm: 10px;
    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
    --shadow: 0 6px 24px rgba(15, 23, 42, 0.06);
}

*, *::before, *::after {
    box-sizing: border-box;
}

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

body {
    font-family: 'Plus Jakarta Sans', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.55;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

a:hover {
    text-decoration: underline;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header & Navigation */
.site-header {
    position: sticky;
    top: 0;
    z-index: 40;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    min-height: 70px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 11px;
    color: var(--text);
    text-decoration: none;
    flex-shrink: 0;
}

.brand:hover {
    text-decoration: none;
}

.brand-icon {
    width: 40px;
    height: 40px;
    border-radius: 11px;
    background: linear-gradient(135deg, #4f46e5, #6366f1);
    color: #fff;
    display: grid;
    place-items: center;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.28);
}

.brand-name {
    display: block;
    font-size: 17px;
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.15;
}

.brand-sub {
    display: block;
    font-size: 11.5px;
    color: var(--muted);
    font-weight: 500;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.nav-group {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-group-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 700;
    color: var(--muted);
    margin-right: 4px;
}

.nav-divider {
    width: 1px;
    height: 24px;
    background: var(--border);
}

.nav-link {
    padding: 7px 12px;
    border-radius: 9px;
    color: var(--text-secondary);
    font-size: 13.5px;
    font-weight: 600;
    transition: background 0.15s, color 0.15s;
    white-space: nowrap;
}

.nav-link:hover {
    background: var(--surface-soft);
    color: var(--primary);
    text-decoration: none;
}

.nav-link.is-active {
    background: var(--primary-soft);
    color: var(--primary);
}

.nav-link-cta {
    background: var(--primary);
    color: #ffffff;
}

.nav-link-cta:hover,
.nav-link-cta.is-active {
    background: var(--primary-hover);
    color: #ffffff;
}

.nav-toggle {
    display: none;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 9px;
    padding: 8px;
    cursor: pointer;
    flex-direction: column;
    gap: 4px;
}

.nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
}

/* Main & Footer */
.main-content {
    flex: 1;
    padding: 28px 0 48px;
}

.site-footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 18px 0;
    font-size: 13px;
    color: var(--muted);
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

/* Alerts */
.alert {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 13px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    margin-bottom: 20px;
    font-size: 14px;
    font-weight: 500;
}

.alert-success { background: var(--success-bg); border-color: var(--success-border); color: #065f46; }
.alert-warning { background: var(--warning-bg); border-color: var(--warning-border); color: #92400e; }
.alert-error, .alert-danger { background: var(--danger-bg); border-color: var(--danger-border); color: #991b1b; }
.alert-info { background: var(--info-bg); border-color: var(--info-border); color: #075985; }

.alert-close {
    background: none;
    border: none;
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
    color: inherit;
    opacity: 0.7;
}

/* Page Headings & Hero */
.hero-banner {
    background: linear-gradient(135deg, #312e81 0%, #4f46e5 55%, #0ea5e9 100%);
    color: #fff;
    border-radius: 18px;
    padding: 32px;
    margin-bottom: 24px;
    box-shadow: 0 12px 32px rgba(79, 70, 229, 0.22);
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 24px;
    align-items: center;
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.16);
    border: 1px solid rgba(255, 255, 255, 0.24);
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    margin-bottom: 12px;
}

.hero-banner h1 {
    margin: 0 0 10px;
    font-size: clamp(22px, 3vw, 31px);
    line-height: 1.2;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.hero-banner p {
    margin: 0 0 18px;
    color: rgba(255, 255, 255, 0.9);
    font-size: 15px;
}

.hero-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.hero-steps {
    background: rgba(15, 23, 42, 0.26);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 14px;
    padding: 16px 18px;
    display: grid;
    gap: 10px;
}

.hero-step {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 13px;
}

.hero-step-num {
    width: 24px;
    height: 24px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.22);
    display: grid;
    place-items: center;
    font-weight: 800;
    font-size: 12px;
    flex-shrink: 0;
}

.page-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 22px;
}

.page-header h1 {
    margin: 0 0 4px;
    font-size: 25px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.page-header p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
}

.page-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* Cards & Grids */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px;
    box-shadow: var(--shadow-sm);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 16px;
}

.card-title {
    margin: 0;
    font-size: 17px;
    font-weight: 700;
}

.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }

/* KPI Cards */
.kpi-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px 20px;
    box-shadow: var(--shadow-sm);
}

.kpi-label {
    font-size: 12.5px;
    font-weight: 600;
    color: var(--muted);
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.kpi-value {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.15;
    color: var(--text);
}

.kpi-sub {
    margin-top: 6px;
    font-size: 12.5px;
    color: var(--muted);
}

.kpi-indigo .kpi-value { color: var(--primary); }
.kpi-emerald .kpi-value { color: var(--success); }
.kpi-amber .kpi-value { color: var(--warning); }

/* Event Cards */
.event-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    box-shadow: var(--shadow-sm);
    transition: transform 0.15s, box-shadow 0.15s;
}

.event-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.event-card-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
}

.event-title {
    margin: 0;
    font-size: 17px;
    font-weight: 700;
    line-height: 1.35;
}

.event-desc {
    margin: 0;
    font-size: 13.5px;
    color: var(--text-secondary);
}

.event-meta {
    display: grid;
    gap: 6px;
    font-size: 13px;
    color: var(--text-secondary);
    background: var(--surface-soft);
    padding: 12px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}

.event-meta-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.event-card-footer {
    margin-top: auto;
    padding-top: 8px;
    display: flex;
    gap: 8px;
    align-items: center;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 11.5px;
    font-weight: 700;
    white-space: nowrap;
}

.badge-success { background: var(--success-bg); color: #065f46; border: 1px solid var(--success-border); }
.badge-warning { background: var(--warning-bg); color: #92400e; border: 1px solid var(--warning-border); }
.badge-danger  { background: var(--danger-bg); color: #991b1b; border: 1px solid var(--danger-border); }
.badge-info    { background: var(--info-bg); color: #075985; border: 1px solid var(--info-border); }
.badge-indigo  { background: var(--primary-soft); color: var(--primary); border: 1px solid #c7d2fe; }
.badge-neutral { background: #f1f5f9; color: #475569; border: 1px solid #cbd5e1; }

/* Progress Bars & Prediction Visuals */
.progress-label {
    display: flex;
    justify-content: space-between;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.progress-track {
    height: 9px;
    background: #e2e8f0;
    border-radius: 999px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    border-radius: 999px;
    background: var(--primary);
    transition: width 0.35s ease;
}

.progress-fill.is-success { background: var(--success); }
.progress-fill.is-warning { background: #f59e0b; }
.progress-fill.is-danger { background: var(--danger); }

.chart-bars {
    display: grid;
    gap: 10px;
}

.chart-bar-row {
    display: grid;
    grid-template-columns: 125px 1fr 64px;
    align-items: center;
    gap: 10px;
    font-size: 12.5px;
}

.chart-bar-name {
    font-weight: 600;
    color: var(--text-secondary);
}

.chart-bar-track {
    height: 14px;
    background: #f1f5f9;
    border-radius: 999px;
    overflow: hidden;
    border: 1px solid var(--border);
}

.chart-bar-fill {
    height: 100%;
    border-radius: 999px;
    transition: width 0.35s ease;
}

.chart-bar-val {
    text-align: right;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    padding: 10px 16px;
    border-radius: 10px;
    font-family: inherit;
    font-size: 13.5px;
    font-weight: 700;
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.15s, border-color 0.15s, transform 0.08s;
    white-space: nowrap;
}

.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }

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

.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #047857; }

.btn-warning { background: #f59e0b; color: #fff; }
.btn-warning:hover { background: #d97706; }

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

.btn-secondary { background: var(--surface); color: var(--text); border-color: var(--border-strong); }
.btn-secondary:hover { background: var(--surface-soft); }

.btn-white { background: #ffffff; color: var(--primary); }
.btn-white:hover { background: #eef2ff; }

.btn-ghost-white { background: rgba(255,255,255,0.14); color: #fff; border-color: rgba(255,255,255,0.28); }
.btn-ghost-white:hover { background: rgba(255,255,255,0.22); }

.btn-sm { padding: 7px 11px; font-size: 12.5px; border-radius: 8px; }
.btn-block { width: 100%; }

.btn[disabled] { opacity: 0.55; cursor: not-allowed; }

/* Forms */
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 14px;
}

.form-group.is-full {
    grid-column: 1 / -1;
}

.form-label {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-secondary);
}

.form-hint {
    font-size: 12px;
    color: var(--muted);
}

.form-control {
    width: 100%;
    padding: 10px 13px;
    border-radius: 10px;
    border: 1px solid var(--border-strong);
    background: var(--surface);
    font-family: inherit;
    font-size: 14px;
    color: var(--text);
    transition: border-color 0.15s, box-shadow 0.15s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.14);
}

.radio-cards {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.radio-card {
    border: 1.5px solid var(--border-strong);
    border-radius: 11px;
    padding: 12px 14px;
    cursor: pointer;
    display: flex;
    gap: 10px;
    align-items: flex-start;
    transition: border-color 0.15s, background 0.15s;
}

.radio-card:has(input:checked) {
    border-color: var(--primary);
    background: var(--primary-soft);
}

.radio-card input {
    margin-top: 3px;
}

/* Ticket QR */
.ticket-wrapper {
    max-width: 720px;
    margin: 0 auto;
}

.ticket-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.ticket-top {
    background: linear-gradient(135deg, #312e81, #4f46e5);
    color: #fff;
    padding: 24px 28px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    flex-wrap: wrap;
}

.ticket-body {
    padding: 28px;
    display: grid;
    grid-template-columns: 1.25fr auto;
    gap: 28px;
    align-items: center;
}

.ticket-qr-box {
    background: #ffffff;
    border: 2px dashed var(--border-strong);
    border-radius: 16px;
    padding: 16px;
    text-align: center;
}

#qrcodeContainer {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    min-width: 200px;
    min-height: 200px;
    padding: 8px;
    background: #fff;
}

#qrcodeContainer img, #qrcodeContainer canvas {
    display: block;
    margin: 0 auto;
}

.ticket-code-pill {
    margin-top: 10px;
    display: inline-block;
    background: var(--surface-soft);
    border: 1px solid var(--border-strong);
    padding: 6px 14px;
    border-radius: 999px;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 16px;
    font-weight: 800;
    letter-spacing: 0.08em;
    color: var(--text);
}

.ticket-info-list {
    display: grid;
    gap: 12px;
}

.ticket-info-item small {
    display: block;
    font-size: 11.5px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--muted);
    font-weight: 700;
}

.ticket-info-item strong {
    font-size: 15px;
    color: var(--text);
}

/* Scanner Page */
.scan-layout {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 20px;
    align-items: start;
}

.scanner-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.scanner-tab {
    padding: 8px 14px;
    border-radius: 9px;
    border: 1px solid var(--border-strong);
    background: var(--surface-soft);
    font-family: inherit;
    font-size: 13px;
    font-weight: 700;
    color: var(--text-secondary);
    cursor: pointer;
}

.scanner-tab.is-active {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.qr-reader-frame {
    width: 100%;
    min-height: 260px;
    border-radius: 12px;
    overflow: hidden;
    background: #0f172a;
    border: 1px solid var(--border);
    display: grid;
    place-items: center;
    color: #94a3b8;
    font-size: 13.5px;
}

.scan-result-box {
    border-radius: 14px;
    padding: 18px;
    border: 1.5px solid var(--border);
    background: var(--surface-soft);
    margin-bottom: 18px;
}

.scan-result-box.is-success { background: var(--success-bg); border-color: var(--success-border); color: #065f46; }
.scan-result-box.is-warning { background: var(--warning-bg); border-color: var(--warning-border); color: #92400e; }
.scan-result-box.is-error   { background: var(--danger-bg); border-color: var(--danger-border); color: #991b1b; }

.scan-feed {
    display: grid;
    gap: 10px;
    max-height: 360px;
    overflow-y: auto;
}

.scan-feed-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 12px;
    background: var(--surface-soft);
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 13px;
}

/* Tables */
.table-wrap {
    width: 100%;
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--surface);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13.5px;
}

th, td {
    padding: 12px 14px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

th {
    background: var(--surface-soft);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--muted);
    font-weight: 700;
}

tr:last-child td {
    border-bottom: none;
}

tr:hover td {
    background: #fafcff;
}

.mono {
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-weight: 700;
}

/* Insight / Callout */
.insight-box {
    background: linear-gradient(135deg, #eef2ff 0%, #f0f9ff 100%);
    border: 1px solid #c7d2fe;
    border-radius: var(--radius);
    padding: 20px 22px;
    margin-bottom: 22px;
}

.insight-box h2 {
    margin: 0 0 8px;
    font-size: 17px;
    color: #312e81;
}

.insight-box p {
    margin: 0;
    font-size: 14px;
    color: #1e293b;
}

.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--muted);
}

.filter-bar {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
    margin-bottom: 16px;
}

/* Utilities */
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.text-muted { color: var(--muted); }
.text-sm { font-size: 13px; }
.flex-between { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

/* Photo Upload, Ticket Profile & Scan Result Photo */
.photo-upload-box {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px;
    background: var(--surface-soft);
    border: 1.5px dashed var(--border-strong);
    border-radius: 12px;
}

.photo-preview {
    width: 78px;
    height: 78px;
    border-radius: 12px;
    background: #ffffff;
    border: 1px solid var(--border);
    display: grid;
    place-items: center;
    overflow: hidden;
    flex-shrink: 0;
    text-align: center;
    padding: 4px;
}

.photo-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 8px;
}

.ticket-profile-head {
    display: flex;
    align-items: center;
    gap: 16px;
    padding-bottom: 12px;
    border-bottom: 1px dashed var(--border-strong);
}

.ticket-photo {
    width: 102px;
    height: 102px;
    border-radius: 14px;
    object-fit: cover;
    border: 2px solid var(--border);
    flex-shrink: 0;
    background: var(--surface-soft);
}

.ticket-photo-fallback {
    display: grid;
    place-items: center;
    background: var(--primary-soft);
    color: var(--primary);
    font-size: 28px;
    font-weight: 800;
}

.scan-result-inner {
    display: flex;
    align-items: center;
    gap: 14px;
}

.scan-result-photo {
    width: 84px;
    height: 84px;
    border-radius: 12px;
    object-fit: cover;
    border: 2px solid rgba(15, 23, 42, 0.14);
    flex-shrink: 0;
    background: #ffffff;
}

.participant-cell {
    display: flex;
    align-items: center;
    gap: 10px;
}

.avatar-sm {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    object-fit: cover;
    border: 1px solid var(--border-strong);
    flex-shrink: 0;
    background: #ffffff;
}

.avatar-fallback {
    display: inline-grid;
    place-items: center;
    background: var(--primary-soft);
    color: var(--primary);
    font-weight: 800;
    font-size: 14px;
}

/* Responsive */
@media (max-width: 960px) {
    .hero-banner, .scan-layout, .grid-4, .grid-3 {
        grid-template-columns: 1fr;
    }
    .grid-2 {
        grid-template-columns: 1fr;
    }
    .nav-toggle {
        display: flex;
    }
    .site-nav {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--surface);
        border-bottom: 1px solid var(--border);
        padding: 16px 20px;
        flex-direction: column;
        align-items: stretch;
        box-shadow: var(--shadow);
    }
    .site-nav.is-open {
        display: flex;
    }
    .nav-group {
        flex-direction: column;
        align-items: stretch;
    }
    .nav-divider {
        width: 100%;
        height: 1px;
    }
}

@media (max-width: 680px) {
    .form-grid, .radio-cards, .ticket-body {
        grid-template-columns: 1fr;
    }
    .chart-bar-row {
        grid-template-columns: 100px 1fr 56px;
    }
}

/* Print Stylesheet */
@media print {
    body {
        background: #ffffff;
    }
    .no-print {
        display: none !important;
    }
    .main-content {
        padding: 0;
    }
    .ticket-card {
        box-shadow: none;
        border: 1.5px solid #cbd5e1;
    }
}