/* 
* ToolHub - Main Stylesheet
* A responsive and mobile-friendly design for the tool website
*/

/* ---------- RESET & BASE STYLES ---------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #3498db;
    --secondary-color: #2980b9;
    --accent-color: #e74c3c;
    --light-gray: #f5f5f5;
    --dark-gray: #333;
    --medium-gray: #777;
    --white: #fff;
    --success: #2ecc71;
    --warning: #f39c12;
    --danger: #e74c3c;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --border-radius: 5px;
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-gray);
    background-color: var(--white);
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: var(--transition);
}

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

ul {
    list-style: none;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: var(--white);
    padding: 10px 20px;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
    text-align: center;
}

.btn:hover {
    background-color: var(--secondary-color);
    color: var(--white);
}

.btn-large {
    padding: 12px 24px;
    font-size: 1.1em;
}

.btn-cta {
    background-color: var(--accent-color);
    padding: 15px 30px;
    font-size: 1.2em;
}

.btn-cta:hover {
    background-color: #c0392b;
}

/* ---------- HEADER ---------- */
header {
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo a {
    color: var(--dark-gray);
    display: flex;
    align-items: center;
}

.logo h1 {
    font-size: 1.8rem;
    margin: 0;
}

.nav-menu {
    display: flex;
}

.nav-menu li {
    margin-left: 20px;
}

.nav-menu a {
    color: var(--dark-gray);
    font-weight: 500;
    padding: 5px 10px;
    border-radius: var(--border-radius);
}

.nav-menu a:hover {
    background-color: var(--light-gray);
    color: var(--primary-color);
}

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* ---------- HERO SECTION ---------- */
.hero {
    background-color: var(--primary-color);
    color: var(--white);
    text-align: center;
    padding: 60px 20px;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.search-box {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
}

.search-box input {
    flex: 1;
    padding: 15px;
    border: none;
    border-radius: var(--border-radius) 0 0 var(--border-radius);
    font-size: 1rem;
}

.search-box button {
    background-color: var(--secondary-color);
    color: var(--white);
    border: none;
    padding: 0 20px;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    cursor: pointer;
}

/* ---------- FEATURED CATEGORIES ---------- */
.featured-categories {
    padding: 60px 20px;
    background-color: var(--white);
}

.featured-categories h2,
.popular-tools h2 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 2rem;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

.category-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 30px;
    text-align: center;
    transition: var(--transition);
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.category-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.category-card h3 {
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.category-card p {
    margin-bottom: 20px;
    color: var(--medium-gray);
}

/* ---------- POPULAR TOOLS ---------- */
.popular-tools {
    padding: 60px 20px;
    background-color: var(--light-gray);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.tool-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 25px;
    text-align: center;
    transition: var(--transition);
}

.tool-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.tool-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.tool-card h3 {
    margin-bottom: 10px;
    font-size: 1.3rem;
}

.tool-card p {
    margin-bottom: 20px;
    color: var(--medium-gray);
}

.view-all {
    text-align: center;
}

/* ---------- CTA SECTION ---------- */
.cta {
    background-color: var(--secondary-color);
    color: var(--white);
    text-align: center;
    padding: 60px 20px;
}

.cta h2 {
    font-size: 2.2rem;
    margin-bottom: 20px;
}

.cta p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* ---------- FOOTER ---------- */
footer {
    background-color: var(--dark-gray);
    color: var(--white);
    padding: 60px 20px 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.footer-col h3 {
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    color: #aaa;
}

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

.social-icons {
    display: flex;
    margin-top: 20px;
}

.social-icons a {
    color: var(--white);
    margin-right: 15px;
    font-size: 1.3rem;
}

.newsletter-form {
    display: flex;
    margin-top: 20px;
}

.newsletter-form input {
    flex: 1;
    padding: 10px;
    border: none;
    border-radius: var(--border-radius) 0 0 var(--border-radius);
}

.newsletter-form button {
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 0 15px;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    cursor: pointer;
}

.copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #444;
    color: #aaa;
}

/* ---------- TOOL PAGE TEMPLATE ---------- */
.tool-page {
    padding: 40px 20px;
}

.tool-header {
    text-align: center;
    margin-bottom: 40px;
}

.tool-header h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.tool-header p {
    max-width: 700px;
    margin: 0 auto;
    color: var(--medium-gray);
}

.tool-container {
    max-width: 900px;
    margin: 0 auto;
    background-color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 30px;
}

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

.tool-form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.tool-form-group input,
.tool-form-group select,
.tool-form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-size: 1rem;
}

.tool-form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.tool-result {
    margin-top: 30px;
    padding: 20px;
    background-color: var(--light-gray);
    border-radius: var(--border-radius);
}

.tool-result h3 {
    margin-bottom: 15px;
}

/* ---------- CATEGORY PAGE ---------- */
.category-header {
    background-color: var(--primary-color);
    color: var(--white);
    text-align: center;
    padding: 40px 20px;
}

.category-header h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.category-header p {
    max-width: 700px;
    margin: 0 auto;
}

.category-tools {
    padding: 60px 20px;
}

/* ---------- RESPONSIVE DESIGN ---------- */
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        box-shadow: 0 10px 10px rgba(0, 0, 0, 0.1);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        margin: 0;
    }

    .nav-menu a {
        display: block;
        padding: 15px;
        border-bottom: 1px solid #eee;
    }

    .hero h2 {
        font-size: 2rem;
    }

    .search-box {
        flex-direction: column;
    }

    .search-box input {
        border-radius: var(--border-radius) var(--border-radius) 0 0;
    }

    .search-box button {
        border-radius: 0 0 var(--border-radius) var(--border-radius);
        padding: 10px;
    }

    .newsletter-form {
        flex-direction: column;
    }

    .newsletter-form input {
        border-radius: var(--border-radius);
        margin-bottom: 10px;
    }

    .newsletter-form button {
        border-radius: var(--border-radius);
    }
}

@media (max-width: 576px) {
    .featured-categories, 
    .popular-tools {
        padding: 40px 20px;
    }

    .category-grid, 
    .tools-grid {
        grid-template-columns: 1fr;
    }

    .hero {
        padding: 40px 20px;
    }

    .cta {
        padding: 40px 20px;
    }

    .cta h2 {
        font-size: 1.8rem;
    }
}