/* ============================================================
   EventEase — Application Stylesheet
   ============================================================ */

/* ── Reset & Variables ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --clr-primary: #4F46E5;
    --clr-primary-dark: #3730A3;
    --clr-primary-light: #EEF2FF;
    --clr-accent: #10B981;
    --clr-warn: #F59E0B;
    --clr-danger: #EF4444;
    --clr-text: #111827;
    --clr-text-muted: #6B7280;
    --clr-border: #E5E7EB;
    --clr-bg: #F9FAFB;
    --clr-surface: #FFFFFF;
    --radius: 10px;
    --shadow: 0 1px 3px rgba(0,0,0,.08), 0 2px 8px rgba(0,0,0,.06);
    --shadow-lg: 0 4px 16px rgba(0,0,0,.12);
    --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

body {
    font-family: var(--font);
    color: var(--clr-text);
    background: var(--clr-bg);
    line-height: 1.6;
    font-size: 15px;
}

a { color: var(--clr-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
img { display: block; max-width: 100%; }

/* ── Layout Shell ── */
.app-shell { display: flex; flex-direction: column; min-height: 100vh; }
.app-main { flex: 1; padding: 0; }

/* ── Header ── */
.app-header {
    background: var(--clr-surface);
    border-bottom: 1px solid var(--clr-border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}
.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 60px;
    display: flex;
    align-items: center;
    gap: 32px;
}
.brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 18px;
    color: var(--clr-primary);
    text-decoration: none;
}
.brand-icon { font-size: 22px; }
.main-nav { display: flex; gap: 4px; flex: 1; }
.nav-link {
    padding: 6px 14px;
    border-radius: 6px;
    color: var(--clr-text-muted);
    font-size: 14px;
    font-weight: 500;
    transition: all .15s;
    text-decoration: none;
}
.nav-link:hover, .nav-link.active {
    background: var(--clr-primary-light);
    color: var(--clr-primary);
    text-decoration: none;
}
.header-actions { display: flex; align-items: center; gap: 12px; margin-left: auto; }
.session-greeting { font-size: 13px; color: var(--clr-text-muted); }

/* ── Footer ── */
.app-footer {
    background: var(--clr-text);
    color: #9CA3AF;
    text-align: center;
    padding: 20px;
    font-size: 13px;
}

/* ── Buttons ── */
.btn-primary {
    background: var(--clr-primary);
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: inline-block;
    transition: background .15s;
    text-decoration: none;
}
.btn-primary:hover { background: var(--clr-primary-dark); text-decoration: none; color: #fff; }
.btn-primary-sm { @extend .btn-primary; padding: 6px 14px; font-size: 13px; }
.btn-secondary {
    background: transparent;
    color: var(--clr-primary);
    border: 1.5px solid var(--clr-primary);
    padding: 9px 18px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    display: inline-block;
    transition: all .15s;
    text-decoration: none;
}
.btn-secondary:hover { background: var(--clr-primary-light); text-decoration: none; }
.btn-outline {
    background: transparent;
    color: var(--clr-text);
    border: 1.5px solid var(--clr-border);
    padding: 9px 18px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    display: inline-block;
    transition: all .15s;
    text-decoration: none;
}
.btn-outline:hover { border-color: var(--clr-primary); color: var(--clr-primary); text-decoration: none; }
.btn-outline-sm { padding: 5px 12px; font-size: 13px; }
.btn-sm { padding: 4px 10px; font-size: 12px; border-radius: 6px; }
.btn-lg { padding: 13px 28px; font-size: 16px; }
.btn-block { display: block; width: 100%; text-align: center; }
.link-btn { background: none; border: none; color: var(--clr-primary); cursor: pointer; font: inherit; }

/* ── Hero ── */
.hero {
    background: linear-gradient(135deg, var(--clr-primary) 0%, var(--clr-primary-dark) 100%);
    color: #fff;
    padding: 80px 24px;
    text-align: center;
}
.hero-content { max-width: 680px; margin: 0 auto; }
.hero-title { font-size: clamp(28px, 4vw, 48px); font-weight: 800; line-height: 1.15; margin-bottom: 16px; }
.hero-highlight { color: #A5B4FC; }
.hero-subtitle { font-size: 17px; color: #C7D2FE; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero .btn-outline { border-color: rgba(255,255,255,.5); color: #fff; }
.hero .btn-outline:hover { background: rgba(255,255,255,.1); }

/* ── Sections ── */
.section { max-width: 1200px; margin: 0 auto; padding: 48px 24px; }
.section-header { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 24px; }
.section-header h2 { font-size: 22px; font-weight: 700; }
.see-all { font-size: 14px; color: var(--clr-primary); }
.section-title { max-width: 1200px; margin: 0 auto 20px; padding: 0 24px; font-size: 20px; font-weight: 700; }

/* ── Stats Bar ── */
.stats-bar {
    background: var(--clr-primary);
    display: flex;
    justify-content: center;
    gap: 64px;
    padding: 36px 24px;
}
.stats-row {
    max-width: 1200px;
    margin: 0 auto 40px;
    padding: 0 24px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
}
.stat { text-align: center; color: #fff; }
.stat-card {
    background: var(--clr-surface);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
    box-shadow: var(--shadow);
}
.stat-number, .stat-card .stat-number {
    display: block;
    font-size: 36px;
    font-weight: 800;
    color: var(--clr-primary);
}
.stats-bar .stat-number { color: #fff; }
.stat-label { display: block; font-size: 13px; color: var(--clr-text-muted); margin-top: 4px; }
.stats-bar .stat-label { color: #C7D2FE; }

/* ── Event Grid & Cards ── */
.event-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
}
.event-card {
    background: var(--clr-surface);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform .2s, box-shadow .2s;
    display: flex;
    flex-direction: column;
}
.event-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.event-card--highlighted { border: 2px solid var(--clr-primary); }
.event-card__image-wrap { position: relative; height: 200px; overflow: hidden; }
.event-card__image { width: 100%; height: 100%; object-fit: cover; }
.event-card__badge {
    position: absolute;
    top: 12px; right: 12px;
    background: var(--clr-primary);
    color: #fff;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .5px;
}
.event-card__body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.event-card__title { font-size: 17px; font-weight: 700; margin-bottom: 10px; line-height: 1.3; }
.event-card__meta { display: flex; flex-direction: column; gap: 4px; margin-bottom: 12px; }
.event-card__meta--light .meta-item { color: rgba(255,255,255,.85); }
.meta-item { font-size: 13px; color: var(--clr-text-muted); }
.event-card__description { font-size: 14px; color: var(--clr-text-muted); flex: 1; margin-bottom: 16px; }
.event-card__footer { margin-top: auto; }
.event-card__actions { display: flex; gap: 10px; margin-top: 12px; }
.event-card__actions .btn-primary,
.event-card__actions .btn-secondary { flex: 1; text-align: center; padding: 8px; font-size: 13px; }

/* ── Capacity Bar ── */
.capacity-bar {
    height: 6px;
    background: var(--clr-border);
    border-radius: 3px;
    overflow: hidden;
}
.capacity-bar--lg { height: 10px; border-radius: 5px; margin-bottom: 8px; }
.capacity-bar__fill { height: 100%; background: var(--clr-primary); border-radius: inherit; transition: width .3s; }
.capacity-label { font-size: 13px; color: var(--clr-text-muted); }
.mini-bar { width: 80px; height: 6px; background: var(--clr-border); border-radius: 3px; display: inline-block; vertical-align: middle; overflow: hidden; }
.mini-bar__fill { height: 100%; background: var(--clr-primary); border-radius: inherit; }
.fill-label { font-size: 12px; color: var(--clr-text-muted); margin-left: 6px; }

/* ── Filter Bar ── */
.filter-bar {
    max-width: 1200px;
    margin: 0 auto 32px;
    padding: 0 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.search-wrap { position: relative; max-width: 440px; }
.search-input { padding-right: 36px; }
.clear-search {
    position: absolute;
    right: 10px; top: 50%;
    transform: translateY(-50%);
    background: none; border: none;
    color: var(--clr-text-muted);
    cursor: pointer; font-size: 14px;
}
.category-filters { display: flex; gap: 8px; flex-wrap: wrap; }
.filter-btn {
    padding: 6px 16px;
    border-radius: 20px;
    border: 1.5px solid var(--clr-border);
    background: var(--clr-surface);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    color: var(--clr-text-muted);
    transition: all .15s;
}
.filter-btn:hover { border-color: var(--clr-primary); color: var(--clr-primary); }
.filter-btn--active { background: var(--clr-primary); border-color: var(--clr-primary); color: #fff; }

.result-count { max-width: 1200px; margin: 0 auto 16px; padding: 0 24px; font-size: 14px; color: var(--clr-text-muted); }
.page-header { max-width: 1200px; margin: 0 auto; padding: 40px 24px 24px; }
.page-header h1 { font-size: 28px; font-weight: 800; margin-bottom: 6px; }
.page-header p { color: var(--clr-text-muted); }

/* ── Event Detail ── */
.detail-hero {
    height: 300px;
    background: linear-gradient(rgba(17,24,39,.6), rgba(17,24,39,.85)), var(--bg) center/cover no-repeat;
    display: flex;
    align-items: flex-end;
}
.detail-hero__overlay {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 32px 24px;
    color: #fff;
}
.detail-hero__overlay h1 { font-size: clamp(22px, 3vw, 36px); font-weight: 800; margin: 8px 0; }
.detail-body {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 24px;
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 40px;
    align-items: start;
}
.detail-section { margin-bottom: 32px; }
.detail-section h2 { font-size: 18px; font-weight: 700; margin-bottom: 12px; }
.attendance-summary { display: flex; gap: 32px; margin-bottom: 16px; }
.attendance-stat { text-align: center; }
.attendance-stat strong { display: block; font-size: 28px; color: var(--clr-primary); }
.attendance-stat span { font-size: 13px; color: var(--clr-text-muted); }
.sidebar-card { background: var(--clr-surface); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.sidebar-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 12px; }
.sidebar-meta { margin-top: 20px; display: flex; flex-direction: column; gap: 10px; }
.sidebar-meta div { display: flex; justify-content: space-between; font-size: 13px; }
.sidebar-meta strong { color: var(--clr-text-muted); }
.sold-out { color: var(--clr-danger); font-weight: 600; }
.already-reg { color: var(--clr-accent); font-weight: 600; margin-bottom: 12px; }
.back-link { font-size: 14px; color: var(--clr-text-muted); display: block; margin-bottom: 8px; }

/* ── Registration ── */
.register-layout {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 24px 48px;
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 40px;
    align-items: start;
}
.summary-img { width: 100%; height: 160px; object-fit: cover; border-radius: var(--radius); margin-bottom: 16px; }
.summary-details { font-size: 14px; }
.summary-details p { margin-bottom: 6px; color: var(--clr-text-muted); }
.summary-details strong { color: var(--clr-text); font-size: 16px; }
.reg-form-wrap { background: var(--clr-surface); border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow); }
.register-summary { background: var(--clr-surface); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); }

/* ── Forms ── */
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--clr-text); }
.required { color: var(--clr-danger); }
.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--clr-border);
    border-radius: 8px;
    font-size: 14px;
    font-family: var(--font);
    color: var(--clr-text);
    background: var(--clr-surface);
    transition: border-color .15s;
}
.form-control:focus { outline: none; border-color: var(--clr-primary); box-shadow: 0 0 0 3px rgba(79,70,229,.1); }
.input-error { border-color: var(--clr-danger) !important; }
.field-error { font-size: 12px; color: var(--clr-danger); margin-top: 4px; display: block; }
.validation-summary { background: #FEF2F2; border: 1px solid #FECACA; border-radius: 8px; padding: 12px 16px; margin-bottom: 20px; font-size: 13px; color: var(--clr-danger); }
.form-error-banner { background: #FEF3C7; border: 1px solid #FCD34D; border-radius: 8px; padding: 12px 16px; margin-bottom: 20px; font-size: 14px; color: #92400E; }
.form-actions { display: flex; gap: 12px; justify-content: flex-end; margin-top: 28px; }

/* ── Success Panel ── */
.success-panel { text-align: center; padding: 40px 20px; }
.success-icon { font-size: 56px; margin-bottom: 16px; }
.success-panel h3 { font-size: 24px; font-weight: 700; margin-bottom: 12px; color: var(--clr-accent); }
.success-panel p { color: var(--clr-text-muted); margin-bottom: 8px; }
.reg-id { margin-top: 12px; font-size: 13px; }
.reg-id code { background: var(--clr-primary-light); color: var(--clr-primary); padding: 2px 8px; border-radius: 4px; }
.success-actions { display: flex; gap: 12px; justify-content: center; margin-top: 24px; }

/* ── Attendance Table ── */
.attendance-table-wrap {
    max-width: 1200px;
    margin: 0 auto 40px;
    padding: 0 24px;
    overflow-x: auto;
}
.attendance-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--clr-surface);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    font-size: 14px;
}
.attendance-table th {
    background: var(--clr-primary);
    color: #fff;
    padding: 12px 16px;
    text-align: left;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .5px;
}
.attendance-table td { padding: 12px 16px; border-bottom: 1px solid var(--clr-border); vertical-align: middle; }
.attendance-table tr:last-child td { border-bottom: none; }
.attendance-table tr:hover td { background: var(--clr-primary-light); }
.row-warning td { background: #FFFBEB; }
.badge { background: var(--clr-primary-light); color: var(--clr-primary); padding: 2px 10px; border-radius: 12px; font-size: 12px; font-weight: 500; }
.status-badge { padding: 3px 10px; border-radius: 12px; font-size: 11px; font-weight: 600; }
.status-confirmed { background: #D1FAE5; color: #065F46; }
.status-pending { background: #FEF3C7; color: #92400E; }

/* ── Auth ── */
.auth-page { display: flex; align-items: center; justify-content: center; min-height: 70vh; padding: 24px; }
.auth-card { background: var(--clr-surface); border-radius: var(--radius); padding: 40px; box-shadow: var(--shadow-lg); max-width: 440px; width: 100%; }
.auth-card h1 { font-size: 24px; font-weight: 800; margin-bottom: 8px; }
.auth-card p { color: var(--clr-text-muted); margin-bottom: 24px; }
.auth-note { font-size: 12px; color: var(--clr-text-muted); margin-top: 16px; text-align: center; }

/* ── Not Found / Empty ── */
.not-found { text-align: center; padding: 80px 24px; }
.not-found h2 { font-size: 28px; font-weight: 800; margin-bottom: 12px; }
.empty-state { text-align: center; padding: 48px 24px; color: var(--clr-text-muted); }

/* ── Loading ── */
.loading-screen { display: flex; flex-direction: column; align-items: center; justify-content: center; height: 100vh; gap: 16px; color: var(--clr-primary); }
.loading-spinner { width: 40px; height: 40px; border: 3px solid var(--clr-border); border-top-color: var(--clr-primary); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Blazor Error UI ── */
#blazor-error-ui {
    background: var(--clr-danger);
    color: #fff;
    bottom: 0; left: 0; right: 0;
    position: fixed;
    padding: 12px 24px;
    display: none;
    z-index: 1000;
}
#blazor-error-ui .reload, #blazor-error-ui .dismiss { color: #fff; margin-left: 12px; }

/* ── Responsive ── */
@media (max-width: 768px) {
    .detail-body, .register-layout { grid-template-columns: 1fr; }
    .main-nav { display: none; }
    .hero { padding: 48px 16px; }
    .event-grid { grid-template-columns: 1fr; }
    .stats-bar { gap: 32px; }
    .form-actions { flex-direction: column; }
}