.event-registration-page {
    min-height: 100vh;
    padding: 4rem 0 5rem;
    background:
        radial-gradient(circle at top left, rgba(56, 176, 157, 0.12), transparent 28%),
        linear-gradient(135deg, #f7fffd 0%, #ffffff 48%, #f2fbf8 100%);
}

.event-registration-container {
    max-width: 1100px;
}

.event-registration-card {
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid rgba(56, 176, 157, 0.15);
    border-radius: 1.8rem;
    padding: 3rem;
    box-shadow: 0 18px 42px rgba(15, 23, 42, 0.08);
}

.event-registration-header {
    margin-bottom: 2.5rem;
}

.event-registration-header span {
    display: inline-block;
    padding: 0.45rem 1rem;
    border-radius: 999px;
    background: rgba(56, 176, 157, 0.11);
    color: #2b9b8a;
    font-weight: 900;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-size: 0.72rem;
    margin-bottom: 1rem;
}

.event-registration-header h1 {
    font-family: "Outfit", sans-serif;
    color: #172033;
    font-size: clamp(2.25rem, 4vw, 4.2rem);
    font-weight: 900;
    letter-spacing: -0.055em;
    line-height: 1;
    margin-bottom: 0.9rem;
}

.event-registration-header p {
    color: #697386;
    max-width: 760px;
    margin: 0 auto;
    line-height: 1.7;
    font-weight: 600;
    font-size: 1.05rem;
}

.payment-qr-box {
    background:
        radial-gradient(circle at top right, rgba(56, 176, 157, 0.12), transparent 35%),
        rgba(56, 176, 157, 0.045);
    border: 1px solid rgba(56, 176, 157, 0.14);
    border-radius: 1.35rem;
    padding: 1.7rem;
    margin-bottom: 2.25rem;
}

.payment-qr-box h5 {
    color: #172033;
    font-weight: 900;
    margin-bottom: 1rem;
}

.payment-qr-box img {
    max-width: 230px;
    width: 100%;
    border-radius: 1rem;
    background: #ffffff;
    padding: 0.8rem;
    border: 1px solid rgba(56, 176, 157, 0.14);
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.06);
}

.payment-qr-box p {
    color: #38b09d;
    font-weight: 900;
    margin-top: 1rem;
    margin-bottom: 0;
}

.event-registration-card .form-label {
    color: #172033;
    font-weight: 900;
    font-size: 0.9rem;
    margin-bottom: 0.45rem;
}

.event-registration-card .form-control,
.event-registration-card .form-select {
    border-radius: 1rem;
    border: 1px solid rgba(15, 23, 42, 0.12);
    padding: 0.85rem 1rem;
    font-weight: 700;
    color: #172033;
    background-color: #ffffff;
}

.event-registration-card .form-control:focus,
.event-registration-card .form-select:focus {
    border-color: #38b09d;
    box-shadow: 0 0 0 0.2rem rgba(56, 176, 157, 0.14);
}

.event-registration-card .form-control[readonly] {
    background: rgba(56, 176, 157, 0.055);
    color: #2b9b8a;
}

.form-hint {
    display: block;
    margin-top: 0.35rem;
    color: #98a2b3;
    font-size: 0.78rem;
    font-weight: 700;
}

.choice-grid {
    display: grid;
    gap: 0.8rem;
}

.interest-grid {
    grid-template-columns: repeat(3, 1fr);
}

.source-grid {
    grid-template-columns: repeat(5, 1fr);
}

.choice-grid label {
    position: relative;
    background: rgba(56, 176, 157, 0.055);
    border: 1px solid rgba(56, 176, 157, 0.13);
    border-radius: 1rem;
    padding: 0.9rem 1rem;
    color: #172033;
    font-weight: 800;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.65rem;
    transition: 0.2s ease;
}

.choice-grid label:hover {
    background: rgba(56, 176, 157, 0.1);
    transform: translateY(-2px);
}

.choice-grid input {
    width: 1rem;
    height: 1rem;
    accent-color: #38b09d;
}

.choice-grid input:checked+span {
    color: #2b9b8a;
}

.btn-home-primary {
    background: #38b09d;
    border: 1px solid #38b09d;
    color: #ffffff;
    font-weight: 900;
    padding: 0.8rem 1.5rem;
}

.btn-home-primary:hover {
    background: #2b9b8a;
    border-color: #2b9b8a;
    color: #ffffff;
}

.alert {
    border: 0;
    font-weight: 800;
    margin-bottom: 1.5rem;
}

@media (max-width: 991px) {
    .source-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .event-registration-card {
        padding: 2.2rem;
    }
}

@media (max-width: 768px) {
    .interest-grid {
        grid-template-columns: 1fr;
    }

    .source-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 575px) {
    .event-registration-page {
        padding: 2.5rem 0 4rem;
    }

    .event-registration-card {
        padding: 1.4rem;
        border-radius: 1.3rem;
    }

    .source-grid {
        grid-template-columns: 1fr;
    }

    .btn-home-primary {
        width: 100%;
    }
}

.payment-section {
    background: #ffffff;
    border: 1px solid rgba(15, 23, 42, 0.12);
    border-radius: 1.3rem;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.payment-section-header {
    text-align: center;
    margin-bottom: 1.25rem;
}

.payment-section-header h5 {
    color: #172033;
    font-weight: 900;
    margin-bottom: 0.25rem;
}

.payment-section-header p {
    color: #697386;
    font-weight: 600;
    margin-bottom: 0;
}

.payment-qr-card {
    max-width: 360px;
    margin: 0 auto;
    background: #f8fafc;
    border: 1px solid rgba(56, 176, 157, 0.14);
    border-radius: 1.2rem;
    padding: 1.25rem;
    text-align: center;
}

.payment-qr-card img {
    width: 100%;
    max-width: 260px;
    border-radius: 1rem;
    background: #ffffff;
    border: 1px solid rgba(15, 23, 42, 0.1);
    padding: 0.75rem;
}

.payment-fee {
    margin-top: 1rem;
    color: #172033;
    font-weight: 800;
}

.payment-fee strong {
    color: #38b09d;
}

.receipt-upload-box {
    background: rgba(56, 176, 157, 0.045);
    border: 1px solid rgba(56, 176, 157, 0.14);
    border-radius: 1.2rem;
    padding: 1.25rem;
}