/* ============================================
   FELTTIST DENTAL STUDIO - Event Registration Form
   ============================================ */

/* ========== REGISTRATION HERO ========== */
.reg-hero {
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    padding: 60px 0;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.reg-hero .hero-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent-glow);
    color: var(--accent);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.reg-hero .hero-title {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 12px;
    line-height: 1.2;
}

.reg-hero .hero-title .accent {
    color: var(--accent);
}

.reg-hero .hero-subtitle {
    color: var(--text-secondary);
    font-size: 16px;
    max-width: 550px;
    margin: 0 auto;
}

/* ========== REGISTRATION LAYOUT ========== */
.reg-section {
    padding: 60px 0;
}

.reg-grid {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 40px;
    align-items: start;
}

/* ========== EVENT DETAIL SIDEBAR ========== */
.event-detail-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    position: sticky;
    top: 100px;
}

.event-detail-card .event-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.event-detail-card .event-img-placeholder {
    width: 100%;
    height: 200px;
    background: var(--bg-hover);
    display: flex;
    align-items: center;
    justify-content: center;
}

.event-detail-card .event-img-placeholder i {
    font-size: 48px;
    color: var(--accent);
    opacity: 0.5;
}

.event-detail-body {
    padding: 28px;
}

.event-detail-body h3 {
    font-size: 20px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 20px;
    line-height: 1.3;
}

.event-detail-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.event-detail-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 14px;
    color: var(--text-secondary);
}

.event-detail-list li i {
    color: var(--accent);
    min-width: 18px;
    margin-top: 2px;
}

.event-detail-list li strong {
    color: var(--text-primary);
}

.event-detail-price {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.event-detail-price .label {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.event-detail-price .value {
    font-size: 24px;
    font-weight: 800;
    color: var(--accent);
}

.event-detail-price .free {
    color: var(--success, #22c55e);
}

/* ========== REGISTRATION FORM ========== */
.reg-form-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 36px;
}

.reg-form-card h2 {
    font-size: 24px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.reg-form-card .form-subtitle {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 32px;
    line-height: 1.5;
}

.reg-form-group {
    margin-bottom: 24px;
}

.reg-form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.reg-form-group label .required {
    color: #ef4444;
    margin-left: 2px;
}

.reg-form-group input,
.reg-form-group textarea {
    width: 100%;
    padding: 14px 18px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 15px;
    font-family: 'Inter', sans-serif;
    transition: all 0.2s ease;
    outline: none;
}

.reg-form-group input:focus,
.reg-form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(234, 179, 8, 0.15);
}

.reg-form-group input::placeholder,
.reg-form-group textarea::placeholder {
    color: var(--text-muted);
}

.reg-form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.reg-form-group .form-hint {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 6px;
}

.reg-form-group .field-error {
    color: #ef4444;
    font-size: 12px;
    margin-top: 6px;
}

/* ========== SUBMIT BUTTON ========== */
.btn-register-submit {
    width: 100%;
    padding: 16px 24px;
    background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
}

.btn-register-submit::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.15) 0%, transparent 100%);
    opacity: 0;
    transition: opacity 0.3s;
}

.btn-register-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(37, 211, 102, 0.35);
}

.btn-register-submit:hover::before {
    opacity: 1;
}

.btn-register-submit:active {
    transform: translateY(0);
}

.btn-register-submit i {
    font-size: 18px;
}

/* ========== ALERT MESSAGES ========== */
.reg-alert {
    padding: 14px 18px;
    border-radius: 12px;
    margin-bottom: 24px;
    font-size: 14px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    line-height: 1.5;
}

.reg-alert i {
    margin-top: 2px;
    min-width: 16px;
}

.reg-alert-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: #fca5a5;
}

.reg-alert-warning {
    background: rgba(234, 179, 8, 0.1);
    border: 1px solid rgba(234, 179, 8, 0.2);
    color: #fcd34d;
}

.reg-alert-info {
    background: rgba(14, 165, 233, 0.1);
    border: 1px solid rgba(14, 165, 233, 0.2);
    color: #7dd3fc;
}

/* ========== QUOTA BADGE ========== */
.quota-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    margin-top: 14px;
}

.quota-badge.available {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: #86efac;
}

.quota-badge.limited {
    background: rgba(234, 179, 8, 0.1);
    border: 1px solid rgba(234, 179, 8, 0.3);
    color: #fcd34d;
}

.quota-badge.full {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #fca5a5;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 900px) {
    .reg-grid {
        grid-template-columns: 1fr;
    }

    .event-detail-card {
        position: static;
        order: -1;
    }

    .reg-form-card {
        padding: 24px;
    }
}

@media (max-width: 480px) {
    .reg-hero .hero-title {
        font-size: 26px;
    }

    .reg-form-card {
        padding: 20px;
    }

    .reg-form-group input,
    .reg-form-group textarea {
        padding: 12px 14px;
    }
}