/* -------------------------------------------------------------------
 *  COURSE DETAILS PAGE - SIMPLE STYLE
 * ------------------------------------------------------------------- */

/* --- General --- */
.section-py {
    padding: 40px 0;
}

/* --- Course Header --- */
.course-header {
    margin-bottom: 30px;
}

.course-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 10px;
}

.course-description {
    font-size: 1rem;
    color: var(--slate);
    line-height: 1.6;
}

/* --- Course Banner --- */
.course-banner-wrapper {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.course-banner-img {
    width: 100%;
    height: auto;
    max-height: 350px;
    object-fit: cover;
    display: block;
}

/* --- Lead Form --- */
.lead-form-wrapper {
    padding: 20px 0;
}

.lead-form-container {
    max-width: 520px;
    margin: 0 auto;
    background: var(--white);
    padding: 40px;
    border-radius: 12px;
    border: 1px solid var(--border);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.form-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 6px;
}

.form-subtitle {
    font-size: 0.95rem;
    color: var(--slate);
    margin-bottom: 28px;
}

/* --- Form Fields --- */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 6px;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    font-size: 0.95rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--white);
    color: var(--dark);
    transition: all 0.2s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.form-control:disabled {
    background: var(--bg-light);
    cursor: not-allowed;
    opacity: 0.8;
}

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

.invalid-feedback {
    color: var(--danger);
    font-size: 0.85rem;
    margin-top: 4px;
    display: block;
}

.form-text {
    font-size: 0.8rem;
    color: var(--slate);
    margin-top: 4px;
    display: block;
}

.text-danger {
    color: var(--danger);
}

/* --- Submit Button --- */
.btn-submit {
    width: 100%;
    padding: 14px;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-submit:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(16, 185, 129, 0.25);
}

.btn-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* --- Alerts --- */
.alert {
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.alert-success {
    background: #ecfdf5;
    border: 1px solid #a7f3d0;
    color: #065f46;
}

.alert-danger {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #991b1b;
}

.alert i {
    font-size: 1.1rem;
}

/* --- Spinner --- */
.spinner-border {
    width: 1.2rem;
    height: 1.2rem;
    border-width: 0.15em;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .section-py {
        padding: 30px 0;
    }

    .course-title {
        font-size: 1.6rem;
    }

    .course-banner-img {
        max-height: 220px;
    }

    .lead-form-container {
        padding: 24px 20px;
    }

    .form-title {
        font-size: 1.3rem;
    }

    .form-subtitle {
        font-size: 0.9rem;
        margin-bottom: 20px;
    }

    .form-control {
        padding: 10px 14px;
        font-size: 0.9rem;
    }

    .btn-submit {
        padding: 12px;
        font-size: 0.95rem;
    }
}

@media (max-width: 576px) {
    .section-py {
        padding: 20px 0;
    }

    .course-title {
        font-size: 1.3rem;
    }

    .course-banner-img {
        max-height: 160px;
    }

    .lead-form-container {
        padding: 20px 16px;
    }

    .form-title {
        font-size: 1.1rem;
    }

    .form-group {
        margin-bottom: 16px;
    }

    .form-label {
        font-size: 0.85rem;
    }

    .form-control {
        padding: 10px 12px;
        font-size: 0.9rem;
    }

    .btn-submit {
        padding: 12px;
        font-size: 0.9rem;
    }

    .alert {
        font-size: 0.9rem;
        padding: 10px 14px;
    }
}

/* --- Dark Mode --- */
[data-bs-theme="dark"] {
    --dark: #f1f5f9;
    --slate: #94a3b8;
    --border: #334155;
    --bg-light: #1e293b;
    --white: #1e293b;
    --primary: #10b981;
    --primary-hover: #059669;
    --danger: #ef4444;
}

[data-bs-theme="dark"] .lead-form-container {
    background: #1e293b;
    border-color: #334155;
}

[data-bs-theme="dark"] .form-control {
    background: #0f172a;
    border-color: #334155;
    color: #f1f5f9;
}

[data-bs-theme="dark"] .form-control:focus {
    border-color: #10b981;
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}

[data-bs-theme="dark"] .form-control:disabled {
    background: #1e293b;
}

[data-bs-theme="dark"] .form-label {
    color: #e2e8f0;
}

[data-bs-theme="dark"] .alert-success {
    background: #064e3b;
    border-color: #065f46;
    color: #34d399;
}

[data-bs-theme="dark"] .alert-danger {
    background: #7f1d1d;
    border-color: #991b1b;
    color: #f87171;
}

[data-bs-theme="dark"] .btn-submit {
    background: #10b981;
}

[data-bs-theme="dark"] .btn-submit:hover {
    background: #059669;
}

[data-bs-theme="dark"] .course-title {
    color: #f1f5f9;
}

[data-bs-theme="dark"] .course-description {
    color: #94a3b8;
}