/* --- Main Stylesheet for RepairHelper -- */

:root {
    --primary-color: #007bff;
    --primary-hover: #0056b3;
    --secondary-color: #6c757d;
    --light-gray: #f8f9fa;
    --dark-gray: #343a40;
    --text-color: #212529;
    --border-color: #dee2e6;
    --body-bg: #ffffff;
}

body {
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    background-color: var(--body-bg);
    color: var(--text-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* --- Header --- */
header {
    background: #fff;
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

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

header .logo a {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--dark-gray);
    text-decoration: none;
}

header nav ul {
    list-style: none;
    display: flex;
    align-items: center;
    padding: 0;
    margin: 0;
}

header nav ul li {
    margin-left: 25px;
}

header nav ul li a {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease-in-out;
    display: flex;
    align-items: center;
}

header nav ul li a i {
    margin-right: 8px;
    width: 20px; /* Align text for icons of different widths */
    text-align: center;
}

header nav ul li a:hover {
    color: var(--primary-color);
}

/* --- Hero Section (Homepage) --- */
.hero {
    background-color: var(--light-gray);
    padding: 5rem 0;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-top: 0;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.25rem;
    color: var(--secondary-color);
    margin-bottom: 2.5rem;
}

.search-form {
    display: flex;
    max-width: 600px;
    margin: 0 auto;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    border-radius: 50px;
}

.search-form input[type="search"] {
    flex-grow: 1;
    border: none;
    padding: 1rem 1.5rem;
    font-size: 1rem;
    border-radius: 50px 0 0 50px;
    outline: none;
}

.search-form button {
    border: none;
    background-color: var(--primary-color);
    color: #fff;
    padding: 0 2rem;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: 0 50px 50px 0;
    transition: background-color 0.2s ease-in-out;
}

.search-form button:hover {
    background-color: var(--primary-hover);
}

/* --- Featured Categories --- */
.featured-categories {
    padding: 4rem 0;
}

.featured-categories h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.category-card {
    display: block;
    background: #fff;
    padding: 2rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-color);
    transition: transform 0.2s, box-shadow 0.2s;
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.12);
}

.category-card h3 {
    margin-top: 0;
    color: var(--primary-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.category-card h3::after {
    content: '\f061'; /* Font Awesome arrow-right */
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 0.9em;
    opacity: 0;
    transform: translateX(-10px);
    transition: opacity 0.2s, transform 0.2s;
}

.category-card:hover h3::after {
    opacity: 1;
    transform: translateX(0);
}

.all-categories-link {
    text-align: center;
    margin-top: 3rem;
}

/* --- General Elements --- */
.btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: #fff;
    padding: 0.75rem 1.5rem;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 500;
    transition: background-color 0.2s ease-in-out;
    border: none;
}

.btn:hover {
    background-color: var(--primary-hover);
    color: #fff;
}

/* --- Footer --- */
footer {
    text-align: center;
    padding: 3rem 0;
    background: var(--dark-gray);
    color: #fff;
    margin-top: 4rem;
}

footer p {
    margin: 0;
}