/* Modern Responsive Design for thomasfersensiteofficiel.com */

:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --text-color: #333;
    --light-bg: #f8f9fa;
    --white: #ffffff;
    --gray: #6c757d;
    --light-gray: #e9ecef;
    --border-radius: 8px;
    --box-shadow: 0 2px 15px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

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

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

/* Header & Navigation */
header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.site-header {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
}

.site-branding {
    text-align: center;
    padding: 2rem 0;
}

.site-title a {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

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

.site-description {
    color: var(--gray);
    font-size: 1rem;
    margin-top: 0.5rem;
}

/* Navigation */
nav.main-navigation {
    background: var(--primary-color);
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    padding: 0;
    margin: 0;
}

nav ul li {
    margin: 0;
}

nav ul li a {
    display: block;
    padding: 1rem 1.5rem;
    color: var(--white);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
}

nav ul li a:hover,
nav ul li.active a {
    background: var(--secondary-color);
}

/* Main Content */
.container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 2rem;
}

.content-wrapper {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 2rem;
}

.main-content {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 600;
    line-height: 1.3;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 3px solid var(--secondary-color);
    padding-bottom: 0.5rem;
}

h2 {
    font-size: 2rem;
    margin-top: 2rem;
}

h3 {
    font-size: 1.5rem;
    margin-top: 1.5rem;
}

p {
    margin-bottom: 1rem;
    line-height: 1.8;
}

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

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

/* Sidebar */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.widget {
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.widget-title {
    font-size: 1.25rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--light-gray);
}

.widget ul {
    list-style: none;
    padding: 0;
}

.widget ul li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--light-gray);
}

.widget ul li:last-child {
    border-bottom: none;
}

.widget ul li a {
    color: var(--text-color);
    display: block;
    transition: var(--transition);
    padding-left: 0.5rem;
}

.widget ul li a:hover {
    color: var(--secondary-color);
    padding-left: 1rem;
}

/* Cards */
.card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    margin-bottom: 2rem;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.card-header {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    color: var(--white);
    padding: 1.5rem;
}

.card-body {
    padding: 1.5rem;
}

/* Breadcrumb */
.breadcrumb {
    background: var(--white);
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
}

.breadcrumb-item + .breadcrumb-item::before {
    content: "›";
    padding: 0 0.5rem;
    color: var(--gray);
}

/* Blog Posts */
.blog-post {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--box-shadow);
}

.blog-post .category {
    display: inline-block;
    background: var(--secondary-color);
    color: var(--white);
    padding: 0.25rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.blog-post .post-title {
    margin: 1rem 0;
}

.blog-post .post-meta {
    color: var(--gray);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

/* Featured Section */
.featured-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.featured-item {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.featured-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 25px rgba(0,0,0,0.15);
}

.featured-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.featured-content {
    padding: 1.5rem;
}

/* Footer */
footer {
    background: var(--primary-color);
    color: var(--white);
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-widgets {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-widget h4 {
    color: var(--white);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--secondary-color);
}

.footer-widget ul {
    list-style: none;
    padding: 0;
}

.footer-widget ul li {
    padding: 0.5rem 0;
}

.footer-widget ul li a {
    color: var(--light-gray);
    transition: var(--transition);
}

.footer-widget ul li a:hover {
    color: var(--white);
    padding-left: 0.5rem;
}

.copyright {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: var(--light-gray);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}

/* Forms */
input[type="text"],
input[type="email"],
input[type="search"],
textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--light-gray);
    border-radius: var(--border-radius);
    font-family: inherit;
    transition: var(--transition);
}

input:focus,
textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

/* Search Form */
.search-form {
    display: flex;
    gap: 0.5rem;
}

.search-field {
    flex: 1;
}

.search-submit {
    background: var(--secondary-color);
    color: var(--white);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

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

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    background: var(--white);
}

th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--light-gray);
}

th {
    background: var(--primary-color);
    color: var(--white);
    font-weight: 600;
}

tr:hover {
    background: var(--light-bg);
}

/* Lists */
ul, ol {
    padding-left: 2rem;
    margin-bottom: 1rem;
}

li {
    margin-bottom: 0.5rem;
}

/* Back to Top Button */
.pagetop {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--secondary-color);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    opacity: 0.8;
}

.pagetop:hover {
    opacity: 1;
    transform: translateY(-5px);
}

.pagetop img {
    width: 20px;
    height: 20px;
}

/* Responsive Design */
@media (max-width: 968px) {
    .content-wrapper {
        grid-template-columns: 1fr;
    }

    nav ul {
        flex-direction: column;
    }

    nav ul li a {
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }

    .footer-widgets {
        grid-template-columns: 1fr;
    }

    h1 {
        font-size: 2rem;
    }
}

@media (max-width: 600px) {
    .container {
        padding: 0 1rem;
    }

    .main-content {
        padding: 1.5rem;
    }

    .site-title a {
        font-size: 1.5rem;
    }

    h1 {
        font-size: 1.75rem;
    }

    h2 {
        font-size: 1.5rem;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease-in;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }