/* Main color scheme for the website - you can modify these colors */
 :root {
    --primary-color: #1c3e6f;
    /* Dark blue - used for headings and important elements */
    --secondary-color: #ff7e33;
    /* Orange - used for buttons and accents */
    --light-color: #f5f7fa;
    /* Light gray - used for backgrounds */
    --dark-color: #1a1a1a;
    /* Almost black - used for text */
    --gray-light: #f1f3f5;
    /* Very light gray - used for card backgrounds */
}

/* Basic text settings for the whole page */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    scroll-behavior: smooth;
}

/* SECTION: Top Banner - The colored strip at the very top of the page */
.top-banner {
    background-color: var(--primary-color);
    color: white;
    padding: 12px 0;
    font-weight: 700;
    text-align: center;
    position: fixed;
    top: 0px;
    left: 0px;
    right: 0px;
    z-index: 2;
}

.top-banner a {
    color: white;
    text-decoration: underline;
}

/* SECTION: Navigation Bar - The menu at the top of the page */
.navbar {
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 8px 0;
    z-index: 2;
}

/* Your website name in the navigation bar */
.navbar-brand {
    font-weight: 700;
    color: var(--primary-color);
    font-size: 28px;
}

/* Menu links in the navigation bar */
.nav-link {
    font-weight: 600;
    margin: 0 10px;
    color: var(--dark-color) !important;
    transition: all 0.3s ease;
}

/* Menu links change color when hovered over */
.nav-link:hover {
    color: var(--secondary-color) !important;
}

/* SECTION: Hero Section - The main banner with signup form */
.hero-section {
    padding: 100px 0 50px;
    background: linear-gradient(135deg, #f5f7fa 0%, #e8edf2 100%);
}

/* Main heading in the hero section */
.hero-heading {
    font-size: 3.2rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1.2;
    margin-bottom: 20px;
}

/* Subheading text in the hero section */
.hero-subheading {
    font-size: 1.3rem;
    margin-bottom: 30px;
    color: #555;
}

.form-container {
    margin-top: 32px;
}

/* The bullet point list in the hero section */
.benefits-list {
    margin-top: 25px;
    padding-left: 20px;
}

.benefits-list li {
    margin-bottom: 15px;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
}

/* The checkmark icons before each bullet point */
.benefits-list i {
    color: var(--secondary-color);
    margin-right: 10px;
}

/* SECTION: Contact Form - The signup form in the hero section */
.contact-form {
    background-color: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.1);
}

/* Input fields in the form */
.form-control {
    padding: 12px 15px;
    border: 1px solid #ddd;
    margin-bottom: 20px;
}

/* The main button style used throughout the site */
.btn-primary {
    background-color: var(--secondary-color);
    border: none;
    padding: 12px 25px;
    font-weight: 600;
    transition: all 0.3s ease;
    border-radius: 5px;
}

/* Button changes when hovered over */
.btn-primary:hover {
    background-color: #e06b24;
    transform: translateY(-2px);
}

/* SECTION: Why Learn Section - Benefits of learning Data Engineering */
.why-learn-section {
    padding: 80px 0;
    background-color: white;
}

/* Heading style for all major sections */
.section-heading {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.section-subtitle {
    font-size: 1.2rem;
    color: #666;
    max-width: 700px;
    margin: 0 auto;
}

/* The cards in the "Why Learn" section */
.feature-card {
    padding: 40px 25px;
    border-radius: 10px;
    background-color: var(--gray-light);
    height: 100%;
    transition: all 0.3s ease;
}

/* Cards rise up when hovered over */
.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

/* Emoji icons in the feature cards */
.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--secondary-color);
}

/* Title in each feature card */
.feature-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--primary-color);
}

/* SECTION: Key Highlights - Program features */
.key-highlights {
    padding: 80px 0;
    background-color: var(--light-color);
}

/* Cards in the highlights section */
.highlight-card {
    background-color: white;
    padding: 30px 25px;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    margin-bottom: 30px;
    height: 100%;
    transition: all 0.3s ease;
}

/* Highlight cards change shadow when hovered */
.highlight-card:hover {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* Circular icon container in highlight cards */
.highlight-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 126, 51, 0.15);
    border-radius: 50%;
    margin-bottom: 20px;
}

/* Icons inside the circular container */
.highlight-icon i {
    font-size: 1.8rem;
    color: var(--secondary-color);
}

/* SECTION: Curriculum - Course content sections */
.curriculum-section {
    padding: 80px 0;
    background-color: white;
}

/* Track title headers (Beginner/Advanced) */
.track-title {
    padding: 15px 20px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 5px;
    margin-bottom: 0;
}

/* Style for the module dropdown buttons when expanded */
.accordion-button:not(.collapsed) {
    background-color: rgba(28, 59, 102, 0.05);
    color: var(--primary-color);
}

/* Remove outline when accordion buttons are clicked */
.accordion-button:focus {
    box-shadow: none;
}

/* SECTION: Alumni Network - Logo showcase */
.alumni-section {
    padding: 80px 0;
    background-color: var(--light-color);
}

/* Grid layout for company logos */
.logo-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 50px;
}

/* Individual company logos */
.company-logo {
    width: 120px;
    height: 60px;
    margin: 15px 30px;
    filter: grayscale(none);
    opacity: 0.7;
    transition: all 0.3s ease;
    object-fit: contain;
}

/* Logos become colored when hovered over */
.company-logo:hover {
    filter: grayscale(0%);
    opacity: 1;
}

/* SECTION: Testimonials - Student reviews */
.testimonials-section {
    padding: 80px 0;
    background-color: white;
}

/* Container for the scrollable testimonials */
.testimonial-container {
    overflow-x: auto;
    padding: 20px 0;
    scroll-behavior: smooth;
}

/* Horizontal scroll area for testimonials */
.testimonial-scrollarea {
    display: flex;
    padding-bottom: 20px;
}

/* Individual testimonial cards */
.testimonial-card {
    min-width: 350px;
    background-color: var(--light-color);
    padding: 30px;
    border-radius: 10px;
    margin-right: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.testimonial-card:last-child {
    margin-right: 0;
}

/* Quote text in testimonials */
.testimonial-text {
    font-style: italic;
    margin-bottom: 20px;
    font-size: 1.1rem;
}

/* Name of the person giving testimonial */
.testimonial-author {
    font-weight: 600;
    color: var(--primary-color);
}

/* Job title/company of testimonial author */
.testimonial-role {
    font-size: 0.9rem;
    color: #666;
}

/* SECTION: FAQs - Frequently asked questions */

.faq-section {
    padding: 80px 0;
    background-color: var(--light-color);
}

/* Individual FAQ items */
.accordion-item {
    margin-bottom: 15px;
    border: none;
}

/* FAQ question buttons */
.accordion-button {
    font-weight: 600;
    color: var(--primary-color);
    background-color: white;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
    border-radius: 5px !important;
}

/* FAQ answer containers */
.accordion-body {
    background-color: white;
    border-bottom-left-radius: 5px;
    border-bottom-right-radius: 5px;
}

/* SECTION: Footer - Bottom of the page */
.footer {
    padding: 80px 0 30px;
    background-color: var(--primary-color);
    color: white;
}

/* Footer section headings */
.footer-heading {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 25px;
}

/* Footer link lists */
.footer-links {
    list-style: none;
    padding-left: 0;
}

/* Individual footer links */
.footer-link {
    margin-bottom: 15px;
}

.footer-link a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.3s ease;
}

/* Footer links brighten when hovered */
.footer-link a:hover {
    color: white;
}

/* Social media icon buttons */
.social-icons a {
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    margin-right: 10px;
    color: white;
    transition: all 0.3s ease;
}

/* Social icons change color when hovered */
.social-icons a:hover {
    background-color: var(--secondary-color);
    transform: translateY(-3px);
}

/* Copyright section at bottom of footer */
.copyright {
    padding-top: 30px;
    margin-top: 50px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
}


.mentors-section {
   padding: 80px 0;
   background-color: #f9f9f9;
}

.mentor-container {
   overflow-x: auto;
   padding: 20px 0;
}

.mentor-scrollarea {
   display: flex;
   gap: 30px;
   padding-bottom: 20px;
}

.mentor-card {
   text-align: center;
   padding: 24px;
   border-radius: 16px;
   background-color: #f9f9f9;
   box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
   max-width: 350px;
   margin: auto;
}

.mentor-card {
   min-width: 300px;
   background: white;
   border-radius: 10px;
   padding: 25px;
   box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.mentor-profile {
   display: flex;
   align-items: center;
   margin-bottom: 20px;
}

.mentor-photo {
   width: 80px;
   height: 80px;
   border-radius: 50%;
   overflow: hidden;
   margin-right: 20px;
}

.mentor-photo img {
   width: 100%;
   height: 100%;
   object-fit: cover;
}

.mentor-name {
   font-size: 1.2rem;
   margin: 0 0 5px 0;
   color: #333;
}

.mentor-role {
   font-size: 0.9rem;
   color: #666;
   margin: 0;
}

.mentor-details {
   color: #555;
   line-height: 1.6;
   font-size: 0.95rem;
}


.testimonials-section {
   padding: 80px 0;
   background-color: #f9f9f9;
}

.testimonial-container {
   overflow-x: auto;
   padding: 20px 0;
}

.testimonial-scrollarea {
   display: flex;
   gap: 30px;
   padding-bottom: 20px;
}

.testimonial-card {
   min-width: 300px;
   max-width: 350px;
   background: white;
   border-radius: 10px;
   padding: 25px;
   box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.testimonial-profile {
   display: flex;
   align-items: center;
   margin-bottom: 20px;
}

.testimonial-photo {
   width: 70px;
   height: 70px;
   border-radius: 50%;
   overflow: hidden;
   margin-right: 15px;
   flex-shrink: 0;
}

.testimonial-photo img {
   width: 100%;
   height: 100%;
   object-fit: cover;
}

.testimonial-info {
   flex-grow: 1;
}

.testimonial-author {
   font-size: 1.1rem;
   margin: 0 0 3px 0;
   color: #333;
}

.testimonial-role {
   font-size: 0.85rem;
   color: #666;
   margin: 0 0 5px 0;
}

.linkedin-link {
   display: inline-block;
   opacity: 0.7;
   transition: opacity 0.2s;
}

.linkedin-link:hover {
   opacity: 1;
}

.testimonial-text-container {
   color: #555;
   line-height: 1.6;
   font-size: 0.95rem;
}

.testimonial-text {
   margin: 0;
   font-style: italic;
}

.logo-container {
    text-align: center;
    display: flex;
    align-items: center;
}

.logo {
    height: 40px;
    margin-right: 8px;
}

.sign-up-btn {
    color: white;

}

#navbarNav {
    line-height: 2.0rem;
}

#signup-btn {
    padding: 0px;
}
/* RESPONSIVE DESIGN - Make the website work well on mobile devices */

/* For tablet-sized screens */
@media (max-width: 992px) {

    .form-container {
        margin-top: 48px;
    }


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

    .hero-heading {
       text-align: center;
        font-size: 2.5rem;
    }

    .contact-form {
        margin-top: 50px;
        padding: 24px;
    }

    .key-highlights {
        padding: 0;
    }

    .mentor-scrollarea {
        display: block;
    }

    .mentors-section {
        padding: 24px 0;
    }

    .logo-grid {
       margin-top: 10px;
       display: flex;
       overflow-x: scroll;
       flex-wrap: nowrap;
       justify-content: flex-start;
   }

   .testimonials-section {
       padding: 24px 0;
       background-color: #f9f9f9;
   }

   .why-learn-section {
       padding: 24px 0;
   }

   .curriculum-section {
       padding: 24px 0;
       background-color: white;
   }

   .faq-section {
       padding: 24px 0;
   }

   .top-banner {
       font-size: 0.8rem;
   }

   .hero-subheading {
       text-align: center;   
   }

   .dreamswitch-navbar {
       padding-top: 10px;
       padding-bottom: 10px;
   }

   .alumni-section {
       padding: 24px 0;
   }

   .section-heading {
       margin-bottom: 0px;
   }

   .mentor-card {
       margin-top: 8px;
   }
}

/* For mobile-sized screens */
@media (max-width: 768px) {

    .form-container {
        margin-top: 48px;
    }

    .hero-heading {
        text-align: center;
        font-size: 2.2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .testimonial-card {
        min-width: 280px;
    }

    .contact-form {
        padding: 24px;
    }

    .key-highlights {
        padding: 0;
    }

    .mentor-scrollarea {
        display: block;
    }

    .mentors-section {
        padding: 24px 0;
    }

    .logo-grid {
       display: flex;
       overflow-x: scroll;
       flex-wrap: nowrap;
       justify-content: flex-start;
       margin-top: 0px;
   }

   .testimonials-section {
       padding: 24px 0;
       background-color: #f9f9f9;
   }

   .why-learn-section {
       padding: 24px 0;
   }

   .curriculum-section {
       padding: 24px 0;
       background-color: white;
   }

   .faq-section {
       padding: 24px 0;
   }

   .top-banner {
       font-size: 0.8rem;
   }

   .hero-subheading {
       text-align: center;   
   }

   .dreamswitch-navbar {
       padding-top: 10px;
       padding-bottom: 10px;
   }

   .alumni-section {
       padding: 24px 0;
   }

   .section-heading {
       margin-bottom: 0px;
   }

   .mentor-card {
       margin-top: 8px;
   }
}