/* Internship Program Page Styling */

.internship-hero-section {
    background: linear-gradient(135deg, #0e1e24 0%, #1c3d49 100%);
    padding: 120px 0 80px;
    color: #ffffff;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.internship-hero-section::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 62px;
    background: #ffffff;
    clip-path: polygon(0 100%, 100% 0, 100% 100%);
}

.internship-hero-title {
    font-size: 3rem;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.internship-hero-subtitle {
    font-size: 1.25rem;
    font-weight: 400;
    color: #b0cdd6;
    max-width: 750px;
    margin: 0 auto 30px;
    line-height: 1.6;
}

.internship-intro-section {
    padding: 80px 0 40px;
}

.internship-intro-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #4a4a4a;
}

/* Course Tabs Section */
.internship-courses-section {
    padding: 40px 0 80px;
    background-color: #f8fafb;
}

.course-tabs-nav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 50px;
}

.course-tab-pill {
    background: #ffffff;
    border: 2px solid #e2e8f0;
    color: #4a5568;
    padding: 14px 28px;
    font-size: 1.05rem;
    font-weight: 700;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.02);
}

.course-tab-pill:hover {
    border-color: #007878;
    color: #007878;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 120, 120, 0.08);
}

.course-tab-pill.active {
    background: #007878;
    border-color: #007878;
    color: #ffffff;
    box-shadow: 0 10px 20px rgba(0, 120, 120, 0.2);
}

.course-content-pane {
    background: #ffffff;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
    border: 1px solid #edf2f7;
    padding: 45px;
    display: none;
    animation: fadeIn 0.5s ease;
}

.course-content-pane.active {
    display: block;
}

.course-pane-header {
    border-bottom: 2px solid #edf2f7;
    padding-bottom: 25px;
    margin-bottom: 35px;
}

.course-title-label {
    font-size: 2rem;
    font-weight: 800;
    color: #1a202c;
    margin-bottom: 10px;
}

.course-desc-label {
    font-size: 1.05rem;
    color: #718096;
    line-height: 1.6;
}

.syllabus-modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
}

.syllabus-module-card {
    background: #f8fafc;
    border-radius: 12px;
    border: 1px solid #edf2f7;
    padding: 24px;
    transition: all 0.3s ease;
}

.syllabus-module-card:hover {
    background: #ffffff;
    border-color: #007878;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.04);
    transform: translateY(-3px);
}

.module-card-number {
    font-size: 0.85rem;
    font-weight: 800;
    color: #007878;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
    display: inline-block;
}

.module-card-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: #1a202c;
    margin-bottom: 15px;
}

.module-topics-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.module-topics-list li {
    font-size: 0.95rem;
    color: #4a5568;
    padding-left: 20px;
    position: relative;
    margin-bottom: 10px;
    line-height: 1.4;
}

.module-topics-list li::before {
    content: "\f00c";
    font-family: "Font Awesome 6 Free", "Font Awesome 5 Free";
    font-weight: 900;
    position: absolute;
    left: 0;
    top: 2px;
    color: #2b6cb0;
    font-size: 0.8rem;
}

/* Application Form Section */
.internship-form-section {
    padding: 80px 0;
    background-color: #ffffff;
}

.internship-form-card {
    background: #1c2e36;
    border-radius: 24px;
    padding: 50px;
    color: #ffffff;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.form-card-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 15px;
    text-align: center;
    line-height: 1.25;
}

.form-card-subtitle {
    font-size: 1.05rem;
    color: #b0cdd6;
    margin-bottom: 40px;
    text-align: center;
    max-width: 550px;
    margin-left: auto;
    margin-right: auto;
}

.internship-form-card .form-control {
    background-color: #273e48 !important;
    border: 1px solid #365563 !important;
    color: #ffffff !important;
    border-radius: 8px !important;
    padding: 12px 18px !important;
    transition: all 0.3s ease !important;
}

.internship-form-card .form-control::placeholder {
    color: #8faab5 !important;
    opacity: 1 !important;
}

.internship-form-card .form-control:focus {
    border-color: #00cccc !important;
    box-shadow: 0 0 0 3px rgba(0, 204, 204, 0.2) !important;
}

.internship-form-card select.form-control {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%238faab5' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e") !important;
    background-repeat: no-repeat !important;
    background-position: right 18px center !important;
    background-size: 16px 12px !important;
    appearance: none !important;
}

/* Custom File Upload Input Styling */
.internship-form-card input[type="file"].form-control {
    padding: 6px 12px !important;
    height: auto !important;
    display: flex;
    align-items: center;
}

.internship-form-card input[type="file"].form-control::file-selector-button {
    background-color: #00cccc !important;
    border: none !important;
    color: #122127 !important;
    padding: 6px 16px !important;
    border-radius: 6px !important;
    font-weight: 700 !important;
    font-size: 13px !important;
    cursor: pointer !important;
    margin-right: 15px !important;
    transition: all 0.2s ease-in-out !important;
}

.internship-form-card input[type="file"].form-control::file-selector-button:hover {
    background-color: #00e6e6 !important;
    color: #111e23 !important;
}

.internship-form-card .submit-btn {
    background-color: #00cccc !important;
    border-color: #00cccc !important;
    color: #122127 !important;
    font-weight: 700 !important;
    letter-spacing: 0.5px !important;
    padding: 14px 35px !important;
    border-radius: 8px !important;
    transition: all 0.3s ease !important;
    width: 100%;
}

.internship-form-card .submit-btn:hover {
    background-color: #00e6e6 !important;
    border-color: #00e6e6 !important;
    transform: translateY(-2px) !important;
    box-shadow: 0 8px 20px rgba(0, 204, 204, 0.3) !important;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsiveness */
@media (max-width: 991px) {
    .internship-hero-title {
        font-size: 2.5rem;
    }
    .form-card-title {
        font-size: 2rem;
    }
    .course-content-pane {
        padding: 30px;
    }
    .internship-form-card {
        padding: 35px 25px;
    }
}

@media (max-width: 575px) {
    .internship-hero-title {
        font-size: 2rem;
    }
    .form-card-title {
        font-size: 1.6rem;
    }
    .course-tab-pill {
        padding: 10px 20px;
        font-size: 0.95rem;
        width: 100%;
        text-align: center;
    }
    .course-title-label {
        font-size: 1.5rem;
    }
    .syllabus-modules-grid {
        grid-template-columns: 1fr;
    }
}

/* Disable Bootstrap validation background icons (checkmark and exclamation marks) on inputs */
.internship-form-card .form-control.is-valid,
.internship-form-card .form-control.valid,
.internship-form-card .form-control.valid-field,
.internship-form-card .was-validated .form-control:valid,
.internship-form-card .was-validated .form-select:valid,
.internship-form-card .form-control.is-invalid,
.internship-form-card .form-control.error,
.internship-form-card .was-validated .form-control:invalid,
.internship-form-card .was-validated .form-select:invalid {
    background-image: none !important;
    padding-right: 18px !important; /* Restore default padding */
}

/* Remove green borders/highlights on valid inputs */
.internship-form-card .form-control.is-valid,
.internship-form-card .form-control.valid,
.internship-form-card .form-control.valid-field,
.internship-form-card .was-validated .form-control:valid,
.internship-form-card .was-validated .form-select:valid {
    border-color: #365563 !important;
    box-shadow: none !important;
}

/* Ensure focus state on valid fields uses our custom cyan glow instead of green */
.internship-form-card .form-control.is-valid:focus,
.internship-form-card .form-control.valid:focus,
.internship-form-card .form-control.valid-field:focus,
.internship-form-card .was-validated .form-control:valid:focus,
.internship-form-card .was-validated .form-select:valid:focus {
    border-color: #00cccc !important;
    box-shadow: 0 0 0 3px rgba(0, 204, 204, 0.2) !important;
}

/* Custom error container display for courses multiselect checkbox */
#courses-error-container .invalid-feedback.is-invalid {
    display: block !important;
    color: #ff3333 !important;
    font-size: 13px !important;
    margin-top: 10px !important;
}

#courses-error-container:empty {
    margin: 0 !important;
    padding: 0 !important;
}

/* Custom Fake File Input styling to support inner label/placeholder */
.custom-file-container {
    height: 50px;
}

.custom-file-container input[type="file"] {
    opacity: 0;
    cursor: pointer;
}

.custom-file-display {
    background-color: #273e48 !important;
    border: 1px solid #365563 !important;
    border-radius: 8px !important;
    height: 100% !important;
    padding: 0 18px !important;
    display: flex !important;
    align-items: center !important;
}

.custom-file-button {
    background-color: #00cccc !important;
    color: #122127 !important;
    padding: 6px 16px !important;
    border-radius: 6px !important;
    font-weight: 700 !important;
    font-size: 13px !important;
    margin-right: 15px !important;
    transition: all 0.2s ease-in-out !important;
    white-space: nowrap;
}

.custom-file-text {
    color: #8faab5;
    font-size: 14px;
}

.custom-file-text.file-selected {
    color: #ffffff;
}

/* Ensure focus styles propagate to the fake display when real input is focused */
.custom-file-container input[type="file"]:focus ~ .custom-file-display {
    border-color: #00cccc !important;
    box-shadow: 0 0 0 3px rgba(0, 204, 204, 0.2) !important;
}

/* Ensure validation state styles propagate to the fake display */
.custom-file-container input[type="file"].is-invalid ~ .custom-file-display {
    border-color: #ff3333 !important;
    box-shadow: 0 0 0 3px rgba(255, 51, 51, 0.2) !important;
}
.custom-file-container input[type="file"].valid-field ~ .custom-file-display {
    border-color: #365563 !important;
    box-shadow: none !important;
}