/**
 * COURSE ENROLLMENT PAGE STYLES
 * Clean and professional enrollment form design
 */

:root {
    --primary-blue: #2563eb;
    --primary-dark: #1e40af;
    --secondary-color: #10b981;
    --background-light: #f8fafc;
    --background-white: #ffffff;
    --text-dark: #1e293b;
    --text-gray: #64748b;
    --border-color: #e2e8f0;
    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
}

/* Hero Section - Styles inherited from style.css */
/* Using standard hero-section, hero-title, hero-subtitle classes */

/* Main Section */
.enrollment-section {
    padding: 80px 0;
    background: var(--background-light);
}

/* Form Container */
.enrollment-form-container {
    background: var(--background-white);
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.form-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.form-subtitle {
    color: var(--text-gray);
    margin-bottom: 2rem;
    font-size: 1rem;
}

.form-section {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.form-section:last-of-type {
    border-bottom: none;
}

.section-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-title i {
    color: var(--primary-blue);
}

/* Form Groups */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-dark);
    font-size: 0.95rem;
}

.form-group .required {
    color: var(--error-color);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: white;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-control.is-invalid {
    border-color: var(--error-color);
}

.form-control.is-valid {
    border-color: var(--success-color);
}

.invalid-feedback {
    display: none;
    color: var(--error-color);
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

.form-control.is-invalid ~ .invalid-feedback {
    display: block;
}

.form-text {
    color: var(--text-gray);
    font-size: 0.875rem;
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

/* Form Actions */
.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.btn-submit {
    flex: 1;
    padding: 14px 32px;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-dark));
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(37, 99, 235, 0.3);
}

.btn-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-cancel {
    padding: 14px 32px;
    background: white;
    color: var(--text-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-cancel:hover {
    background: var(--background-light);
    border-color: var(--text-gray);
}

/* Alert Messages */
#alertContainer {
    margin-bottom: 1.5rem;
}

.alert {
    padding: 14px 18px;
    border-radius: 8px;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #6ee7b7;
}

.alert-danger {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

.alert i {
    font-size: 1.2rem;
}

/* Course Summary Card */
.course-summary-card {
    background: var(--background-white);
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    position: sticky;
    top: 100px;
}

.course-image {
    position: relative;
    width: 100%;
    height: 200px;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 1.5rem;
}

.course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.course-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: #fbbf24;
    color: #78350f;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.course-icon-placeholder {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-dark));
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    margin-bottom: 1.5rem;
}

.course-icon-placeholder i {
    font-size: 4rem;
    color: white;
}

.course-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.course-desc {
    color: var(--text-gray);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.course-meta-list {
    margin-bottom: 1.5rem;
}

.meta-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

.meta-item:last-child {
    border-bottom: none;
}

.meta-item i {
    color: var(--primary-blue);
    font-size: 1.1rem;
    margin-top: 2px;
}

.meta-item > div {
    flex: 1;
}

.meta-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-gray);
    margin-bottom: 2px;
}

.meta-value {
    display: block;
    font-weight: 600;
    color: var(--text-dark);
}

.course-highlights {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.course-highlights h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.course-highlights ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.course-highlights li {
    padding: 8px 0;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-dark);
    font-size: 0.95rem;
}

.course-highlights li i {
    color: var(--success-color);
    font-size: 1rem;
}

.trust-indicators {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.trust-item {
    flex: 1;
    text-align: center;
    padding: 12px;
    background: var(--background-light);
    border-radius: 8px;
}

.trust-item i {
    display: block;
    font-size: 1.5rem;
    color: var(--primary-blue);
    margin-bottom: 8px;
}

.trust-item span {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-dark);
}

/* Responsive Design */
@media (max-width: 991px) {
    .course-summary-card {
        position: static;
        margin-top: 3rem;
    }
}

@media (max-width: 768px) {
    .enrollment-section {
        padding: 60px 0;
    }

    .enrollment-form-container {
        padding: 30px 20px;
    }

    .form-actions {
        flex-direction: column;
    }

    .btn-submit,
    .btn-cancel {
        width: 100%;
    }

    .trust-indicators {
        flex-direction: column;
    }
}

@media (max-width: 576px) {
    .form-title {
        font-size: 1.4rem;
    }
}