/*
 * Refactory Landing Page Clone Stylesheet
 * Layout Techniques: CSS Grid, Flexbox
 * Colors: #6B2D8F (Purple), #00BFA5 (Teal), #C0FF33 (Lime/Yellow)
 */

/* ------------------------------------------- */
/* 0. ROOT VARIABLES AND BASE STYLES */
/* ------------------------------------------- */
:root {
    /* Color Palette */
    --color-primary-purple: #6B2D8F;
    --color-accent-teal: #00BFA5;
    --color-cta-yellow: #C0FF33;
    --color-footer-dark: #2C1A4D;
    --color-light-gray: #f5f5f5;
    --color-text-dark: #333333;
    --color-white: #ffffff;

    /* Spacing */
    --container-width: 1200px;
    --section-padding-y: 80px;
    --gap-spacing: 30px;

    /* Typography */
    --font-sans: 'Inter', sans-serif;
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-sans);
    line-height: 1.7;
    color: var(--color-text-dark);
    scroll-behavior: smooth;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* Base Headings & Text Styles */
.section-heading-purple {
    color: var(--color-primary-purple);
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 10px;
}

.section-subheading-teal {
    color: var(--color-accent-teal);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.section-title-purple {
    color: var(--color-primary-purple);
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--gap-spacing);
}

.light-bg {
    background-color: var(--color-light-gray);
}

/* ------------------------------------------- */
/* 1. NAVIGATION BAR (Flexbox) */
/* ------------------------------------------- */
#navbar {
    background-color: var(--color-white);
    padding: 15px 0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

#navbar .container {
    display: flex;
    justify-content: space-between; /* Logo on left, Search on right, Menu in middle */
    align-items: center;
}

/* Logo Styling */
.logo {
    font-size: 1.5rem;
    font-weight: 800;
    white-space: nowrap;
}

.logo-text-ref {
    color: var(--color-primary-purple);
}

.logo-text-academy {
    color: var(--color-accent-teal);
}

/* Navigation Menu (Flexbox) */
.nav-menu {
    display: flex;
    gap: 20px;
    align-items: center;
}

.nav-item a {
    color: var(--color-text-dark);
    font-size: 0.95rem;
    font-weight: 600;
    padding: 5px 0;
    position: relative;
}

.nav-item a:hover {
    color: var(--color-primary-purple);
}

.has-dropdown {
    display: flex;
    align-items: center;
}

.dropdown-arrow::after {
    content: 'v'; /* Simple dropdown indicator */
    margin-left: 5px;
    font-size: 0.7rem;
    color: var(--color-accent-teal);
    vertical-align: middle;
}

/* Search Button */
.search-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--color-cta-yellow);
    border: none;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--color-text-dark);
    transition: background-color 0.3s;
    flex-shrink: 0;
}

.search-btn svg {
    width: 20px;
    height: 20px;
}

.search-btn:hover {
    background-color: #aed133;
}

.menu-toggle {
    display: none; /* Hidden on desktop */
}

/* ------------------------------------------- */
/* 2. HERO SECTION */
/* ------------------------------------------- */
#hero-section {
    min-height: 650px;
    height: 80vh;
    background: 
        /* Overlay for text readability */
        linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), 
        /* Image Placeholder */
        url('https://refactory.academy/wp-content/uploads/2025/08/0G2A8223-1536x1024.jpg') center center / cover no-repeat;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: var(--section-padding-y) 20px;
}

.hero-content {
    max-width: 900px;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 2.5rem); /* Responsive font size */
    color: var(--color-white);
    font-weight: 800;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
    font-size: clamp(1.2rem, 2.5vw, 1.5rem);
    color: var(--color-white);
    font-weight: 400;
    margin-bottom: 40px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.4);
}

/* Call-to-Action Buttons (Flexbox) */
.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap; /* Allows wrapping on smaller screens */
}

.cta-btn {
    padding: 15px 30px;
    border-radius: 8px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: transform 0.2s, box-shadow 0.2s, opacity 0.2s;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
}

.cta-btn .arrow {
    margin-left: 10px;
    font-size: 1.2rem;
}

.cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    opacity: 0.9;
}

.cta-btn-purple {
    background-color: var(--color-primary-purple); /* #6B2D8F */
    color: var(--color-white);
    border: 2px solid var(--color-primary-purple);
}

.cta-btn-yellow {
    background-color: var(--color-cta-yellow); /* #C0FF33 */
    color: var(--color-text-dark);
    border: 2px solid var(--color-cta-yellow);
}

.cta-btn-white {
    background-color: var(--color-white);
    color: var(--color-text-dark);
    border: 2px solid var(--color-white);
}

/* ------------------------------------------- */
/* 3. ABOUT REFACTORY SECTION (CSS Grid) */
/* ------------------------------------------- */
#about-section {
    padding: var(--section-padding-y) 0;
}

.about-grid {
    display: grid;
    /* Two-column layout: 1fr 1fr */
    grid-template-columns: 1fr 1fr; 
    gap: var(--gap-spacing);
    align-items: center; /* Vertically centered content */
}

.about-text-content p {
    margin-bottom: 15px;
    font-size: 1rem;
    color: var(--color-text-dark);
}

.learn-more-btn {
    margin-top: 20px;
}

.about-image-wrapper {
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

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

/* ------------------------------------------- */
/* 4. FEATURED COURSES SECTION (CSS Grid) */
/* ------------------------------------------- */
#courses-section {
    padding: var(--section-padding-y) 0;
    text-align: center;
}

.course-grid {
    display: grid;
    /* Three-column layout: repeat(3, 1fr) */
    grid-template-columns: repeat(3, 1fr);
    gap: var(--gap-spacing);
}

/* Card Styling */
.course-card {
    background-color: var(--color-white);
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    text-align: left;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.15);
}

.card-image {
    width: 100%;
    height: 250px; /* Consistent image height */
    object-fit: cover;
}

.card-content {
    padding: 20px;
}

.card-title-purple {
    color: var(--color-primary-purple);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.card-description {
    font-size: 0.95rem;
    color: #666;
    margin-bottom: 20px;
    height: 70px; /* Ensure consistent card height for text */
    overflow: hidden;
}

.card-link {
    font-size: 0.9rem;
    padding: 10px 15px;
}

/* ------------------------------------------- */
/* 5. FOOTER SECTION (CSS Grid & Flexbox) */
/* ------------------------------------------- */
#main-footer {
    background-color: var(--color-footer-dark); /* #2C1A4D */
    color: var(--color-white);
    padding-top: var(--section-padding-y);
}

.footer-grid {
    display: grid;
    /* Four-column layout: repeat(4, 1fr) */
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    padding-bottom: 40px;
}

.footer-heading-teal {
    color: var(--color-accent-teal);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.about-footer .logo {
    margin-bottom: 15px;
}

.about-footer p {
    margin-bottom: 25px;
    font-size: 0.95rem;
}

/* Footer List Links */
.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    font-size: 0.95rem;
}

.footer-col ul li a:hover {
    color: var(--color-accent-teal);
}

/* Contact Info Styling */
.contact-info p {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
    font-size: 0.95rem;
}

.contact-icon {
    font-size: 1.1rem;
    margin-right: 8px;
    color: var(--color-accent-teal);
}

/* Visit Us Column */
address {
    font-style: normal;
    margin-bottom: 15px;
    font-size: 0.95rem;
}

.location-link {
    color: var(--color-accent-teal);
    font-weight: 600;
}

.location-link:hover {
    text-decoration: underline;
}

/* Social Icons (Flexbox) */
.social-icons {
    display: flex;
    gap: 10px;
}

.social-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 700;
    font-size: 1rem;
    color: var(--color-white);
    transition: transform 0.2s;
}

.social-icon:hover {
    transform: scale(1.1);
}

.facebook { background-color: #1877F2; }
.twitter { background-color: #1DA1F2; }
.linkedin { background-color: #0A66C2; }
.youtube { background-color: #FF0000; }
.instagram { 
    /* Gradient for Instagram */
    background: radial-gradient(circle at 30% 107%, #fdf497 0%, #fdf497 5%, #fd5949 45%, #d6249f 60%, #285AEB 90%);
}


/* Copyright Section */
.copyright {
    text-align: center;
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 40px;
    font-size: 0.85rem;
    color: #a0a0a0;
}


/* ------------------------------------------- */
/* 6. RESPONSIVE DESIGN (Media Queries) */
/* ------------------------------------------- */

/* Tablet & Smaller Desktop (max-width: 1024px) */
@media (max-width: 1024px) {
    /* Navbar Adjustment */
    .nav-menu {
        gap: 15px;
    }

    /* Hero */
    .hero-title {
        font-size: 3rem;
    }

    /* Courses Grid */
    .course-grid {
        grid-template-columns: repeat(2, 1fr); /* 2 columns */
    }

    /* Footer Grid */
    .footer-grid {
        grid-template-columns: repeat(2, 1fr); /* 2 columns */
    }
}

/* Mobile (max-width: 768px) */
@media (max-width: 768px) {
    /* Navbar Mobile */
    #navbar .container {
        padding: 0 15px;
    }
    
    .nav-menu {
        display: none; /* Hide default menu */
        flex-direction: column;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--color-white);
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        padding: 20px 0;
        z-index: 990;
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-item {
        width: 100%;
        text-align: center;
        padding: 10px 0;
        border-bottom: 1px solid var(--color-light-gray);
    }
    
    .menu-toggle {
        display: block; /* Show menu toggle */
        background: none;
        border: none;
        cursor: pointer;
        color: var(--color-text-dark);
        width: 30px;
        height: 30px;
    }
    
    .search-btn {
        margin-left: 10px;
    }

    /* Hero */
    .hero-title {
        font-size: 2.2rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .cta-buttons {
        flex-direction: column;
        gap: 15px;
    }
    
    .cta-btn {
        width: 80%;
        margin: 0 auto;
    }

    /* About Section Grid */
    .about-grid {
        grid-template-columns: 1fr; /* Stack columns */
        text-align: center;
    }
    
    .about-image-wrapper {
        order: -1; /* Move image above text on mobile */
    }

    /* Courses Section Grid */
    .course-grid {
        grid-template-columns: 1fr; /* Stack cards into a single column */
    }
    
    .course-card {
        text-align: center;
    }

    .card-description {
         height: auto; /* Allow height to adjust */
    }

    /* Footer Section Grid */
    .footer-grid {
        grid-template-columns: 1fr; /* Stack columns */
        gap: 30px;
    }
    
    .footer-col {
        padding-bottom: 15px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    
    .footer-col:last-child {
        border-bottom: none;
        padding-bottom: 0;
    }

}