/*
====================================
CSS Reset and Global Styles
====================================
*/

@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;700&display=swap');

:root {
    --dark-blue: #1A237E; /* Primary Background, Header, Footer */
    --orange: #FF7043; /* Accent, Buttons, CTAs */
    --white: #F5F5F5; /* Light Background */
    --text-color: #333;
    --transition-speed: 0.3s;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

h1, h2, h3 {
    color: var(--dark-blue);
    font-weight: 700;
}

a {
    text-decoration: none;
    color: var(--dark-blue);
    transition: color var(--transition-speed);
}

a:hover {
    color: var(--orange);
}

/* Utility Class for Content Width */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/*
====================================
Buttons (Highly Styled)
====================================
*/

.btn {
    display: inline-block;
    padding: 12px 25px;
    font-size: 1rem;
    font-weight: 700;
    text-align: center;
    border: 2px solid var(--orange);
    border-radius: 6px;
    cursor: pointer;
    transition: background-color var(--transition-speed), color var(--transition-speed), transform var(--transition-speed);
    text-transform: uppercase;
}

.btn-primary {
    background-color: var(--orange);
    color: var(--white);
}

.btn-primary:hover {
    background-color: var(--dark-blue);
    border-color: var(--dark-blue);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
    background-color: transparent;
    color: var(--dark-blue);
    border-color: var(--dark-blue);
}

.btn-secondary:hover {
    background-color: var(--dark-blue);
    color: var(--white);
    transform: translateY(-2px);
}

/*
====================================
Header and Navigation
====================================
*/

.header {
    background-color: var(--dark-blue);
    color: var(--white);
    padding: 15px 0;
    position: sticky; /* Sticky header */
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    color: var(--orange);
    font-size: 1.8rem;
    font-weight: 700;
    transition: color var(--transition-speed);
}

.logo a:hover {
    color: var(--white);
}

.nav-menu {
    list-style: none;
    display: flex;
    gap: 25px;
}

.nav-menu a {
    color: var(--white);
    font-weight: 400;
    position: relative;
    padding: 5px 0;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    display: block;
    margin-top: 5px;
    right: 0;
    background: var(--orange);
    transition: width var(--transition-speed) ease;
}

.nav-menu a:hover::after {
    width: 100%;
    left: 0;
    background: var(--orange);
}

/* Hamburger Menu for Mobile (Hidden on Desktop) */
.menu-toggle {
    display: none;
    cursor: pointer;
    font-size: 1.5rem;
}

/*
====================================
Main Content Area
====================================
*/

main {
    flex-grow: 1;
    padding: 50px 0;
}

.section {
    padding: 50px 0;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 40px;
}

/*
====================================
Footer
====================================
*/

.footer {
    background-color: var(--dark-blue);
    color: var(--white);
    padding: 40px 0 10px;
    border-top: 5px solid var(--orange);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 30px;
}

.footer-info .logo a {
    font-size: 1.5rem;
    margin-bottom: 10px;
    display: inline-block;
}

.footer-heading {
    color: var(--orange);
    font-size: 1.1rem;
    margin-bottom: 15px;
}

.footer-links {
    list-style: none;
}

.footer-links a {
    color: var(--white);
    display: block;
    padding: 5px 0;
    transition: color var(--transition-speed), padding-left var(--transition-speed);
}

.footer-links a:hover {
    color: var(--orange);
    padding-left: 5px;
}

.footer-copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.85rem;
}

/*
====================================
Form Styling (Used on Contact Page)
====================================
*/

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 700;
    color: var(--dark-blue);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--orange);
    outline: none;
    box-shadow: 0 0 5px rgba(255, 112, 67, 0.5);
}

.contact-form-note {
    margin-top: 20px;
    padding: 15px;
    border-left: 4px solid var(--orange);
    background-color: #ffe0b2; /* Light orange background */
    color: var(--dark-blue);
}

/*
====================================
Responsiveness (Mobile First)
====================================
*/

@media (max-width: 768px) {
    .header-content {
        flex-wrap: wrap;
    }

    .nav-menu {
        flex-direction: column;
        width: 100%;
        display: none; /* Hidden by default for mobile */
        background-color: var(--dark-blue);
        text-align: center;
        padding-bottom: 10px;
    }

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

    .nav-menu li {
        margin: 10px 0;
    }

    .menu-toggle {
        display: block;
        color: var(--orange);
        order: 1; /* Keep logo and toggle on the same line */
    }

    .logo {
        order: 0;
    }

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

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-heading {
        margin-top: 20px;
    }

    .footer-links a {
        padding: 5px 0;
    }
}

/*
====================================
HOME PAGE SPECIFIC STYLES
====================================
*/

.hero {
    background-color: var(--dark-blue);
    color: var(--white);
    padding: 80px 0;
    text-align: center;
}

.hero h1 {
    color: var(--orange);
    font-size: 3rem;
    margin-bottom: 15px;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
}

.tool-section {
    padding: 60px 0;
    background-color: var(--white);
}

/* Upload Area Styling */
.upload-area {
    border: 3px dashed var(--orange);
    padding: 50px 20px;
    text-align: center;
    cursor: pointer;
    border-radius: 10px;
    transition: background-color var(--transition-speed), transform var(--transition-speed);
    margin-bottom: 30px;
}

.upload-area:hover,
.upload-area.dragover {
    background-color: rgba(255, 112, 67, 0.1);
    transform: translateY(-5px);
}

.upload-area h3 {
    margin-bottom: 10px;
}

.upload-icon {
    font-size: 3rem;
    color: var(--orange);
    margin-bottom: 15px;
    display: block;
}

#fileInfo {
    margin-top: 20px;
    padding: 15px;
    border: 1px solid var(--dark-blue);
    border-radius: 5px;
    background-color: var(--white);
    display: none; /* Hidden until file is uploaded */
}

#fileInfo p {
    margin: 5px 0;
}

.file-options {
    margin-top: 20px;
    display: flex;
    justify-content: center;
    gap: 20px;
    align-items: center;
}

/* Conversion Results Area */
#conversionResults {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 2px solid var(--dark-blue);
    text-align: center;
    display: none; /* Hidden until conversion is done */
}

.result-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.result-card {
    background-color: var(--white);
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 15px;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

.result-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.result-card img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    margin-bottom: 10px;
    border: 1px solid var(--orange);
}

.download-all-btn {
    margin-top: 30px;
}


/* SEO Content Section */
.seo-content {
    background-color: #E8EAF6; /* Very light blue/grey */
    padding: 40px 0;
}

.seo-content h2 {
    color: var(--orange);
    text-align: center;
    margin-bottom: 20px;
}

.seo-content p {
    max-width: 800px;
    margin: 15px auto;
    text-align: justify;
}

/* FAQ Section Styling (Accordion) */
.faq-section {
    padding: 50px 0;
}

.faq-item {
    border: 1px solid #ddd;
    border-radius: 6px;
    margin-bottom: 10px;
    overflow: hidden;
}

.faq-question {
    background-color: var(--dark-blue);
    color: var(--white);
    padding: 15px 20px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 700;
    transition: background-color var(--transition-speed);
}

.faq-question:hover {
    background-color: #2D3B8E;
}

.faq-icon {
    transition: transform var(--transition-speed);
    font-size: 1.2rem;
    color: var(--orange);
}

.faq-question.active .faq-icon {
    transform: rotate(45deg); /* Plus sign to X/minus sign */
}

.faq-answer {
    background-color: var(--white);
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out, padding 0.4s ease-out;
}

.faq-answer.open {
    max-height: 300px; /* Adjust based on max expected content */
    padding: 15px 20px;
}

/* Mobile Adjustments for Home */
@media (max-width: 600px) {
    .hero h1 {
        font-size: 2.2rem;
    }
    .hero p {
        font-size: 1rem;
    }
    .upload-area {
        padding: 30px 15px;
    }
    .file-options {
        flex-direction: column;
    }
    .result-gallery {
        grid-template-columns: 1fr;
    }
}