:root {
    --hb-green-dark: #1b5e20;
    --hb-green: #2d6a4f;
    --hb-green-light: #43a047;
    --hb-success: #198754;
    --hb-success-hover: #157347;
}

html { font-size: 14px; position: relative; min-height: 100%; }

@media (min-width: 768px) {
    html { font-size: 16px; }
}

.btn:focus, .btn:active:focus, .form-control:focus, .form-select:focus, .form-check-input:focus {
    border-color: var(--hb-green-light);
    box-shadow: 0 0 0 0.2rem rgba(67,160,71,.25);
}
.form-check-input:checked { background-color: var(--hb-success); border-color: var(--hb-success); }

.event-body {
    background: var(--hb-green) linear-gradient(160deg, #1b5e20 0%, #2d6a4f 55%, #43a047 100%) center/cover fixed no-repeat;
    color: #202124;
    min-height: 100vh;
}

.event-hero {
    color: #fff;
    text-align: center;
    padding: 30px 16px 6px;
}

.event-hero .kv-banner {
    width: 100%;
    /* Đồng nhất chiều ngang với form đăng ký (.form-card max-width: 720px). */
    max-width: 720px;
    border-radius: 14px;
    box-shadow: 0 12px 40px rgba(0,0,0,.45);
}

.event-hero h1 {
    font-weight: 800;
    letter-spacing: .5px;
    margin-top: 22px;
    text-shadow: 0 2px 12px rgba(0,0,0,.45);
}

.event-hero .event-meta { color: #e8f5e9; font-weight: 600; opacity: .95; }

.form-card {
    background: rgba(255,255,255,0.97);
    border-radius: 6px;
    box-shadow: 0 6px 24px rgba(0,0,0,0.18);
    max-width: 720px;
    margin: 24px auto 40px;
    padding: 30px 36px;
}

/* Tiêu đề trong card hiển thị như dải banner gradient xanh (giống TXV). */
.form-card h2 {
    background: linear-gradient(135deg, var(--hb-green-dark) 0%, var(--hb-green-light) 100%);
    color: #fff;
    font-weight: 700;
    text-transform: uppercase;
    border-radius: 6px;
    padding: 14px 18px;
    font-size: 1.25rem;
}

.form-label { font-weight: 500; color: #202124; margin-bottom: 6px; }

.btn-gold {
    background: var(--hb-success);
    border: none;
    color: #fff;
    font-weight: 700;
    letter-spacing: .5px;
    padding: 12px 18px;
    border-radius: 8px;
}
.btn-gold:hover { background: var(--hb-success-hover); color: #fff; }

.required-mark { color: #d93025; }

.consent-text { font-size: 12.5px; font-style: italic; color: #555; }

.event-footer { background: rgba(0,0,0,.25); color: #d7f3df; }
.event-footer a { color: #fff; }

.ticket-code {
    display: inline-block;
    background: var(--hb-success);
    color: #fff;
    font-weight: 800;
    font-size: 2rem;
    letter-spacing: 6px;
    padding: 12px 26px;
    border-radius: 12px;
}

.zone-badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 999px;
    font-weight: 700;
    color: #fff;
}
.zone-prima { background: #b8336a; }
.zone-sky { background: #1d4e8f; }

.stat-card { border-radius: 14px; border: none; box-shadow: 0 4px 16px rgba(0,0,0,.08); }
.stat-card .stat-value { font-size: 2.2rem; font-weight: 800; color: var(--hb-green-dark); }