/* ============================================
   MERCAFICHAJES - Football Transfer Market
   Mobile-First Responsive Design
   ============================================ */

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

:root {
    --primary-color: #1a1a1a;
    --secondary-color: #2d3436;
    --accent-color: #0066cc;
    --accent-light: #e8f0ff;
    --text-dark: #1a1a1a;
    --text-light: #666666;
    --border-color: #e0e0e0;
    --bg-light: #f9f9f9;
    --success-color: #27ae60;
    --warning-color: #f39c12;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: #ffffff;
    font-size: 16px;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    margin: 1.5rem 0 0.75rem 0;
    line-height: 1.3;
}

h1 {
    font-size: 2.5rem;
    margin-top: 0;
}

h2 {
    font-size: 2rem;
    border-bottom: 2px solid var(--accent-color);
    padding-bottom: 0.5rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin: 1rem 0;
    color: var(--text-light);
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #0052a3;
    text-decoration: underline;
}

strong {
    color: var(--text-dark);
    font-weight: 600;
}

/* ============================================
   CONTAINER & LAYOUT
   ============================================ */

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

.wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
    padding: 2rem 0;
}

section {
    margin: 2rem 0;
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

header {
    background-color: var(--primary-color);
    color: #ffffff;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #ffffff;
    text-decoration: none;
}

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

nav {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

nav a {
    color: #ffffff;
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.3s ease;
}

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

/* Mobile menu toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: #ffffff;
    font-size: 1.5rem;
    cursor: pointer;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: #ffffff;
    padding: 3rem 0;
    text-align: center;
    margin-bottom: 2rem;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #ffffff;
}

.hero p {
    font-size: 1.1rem;
    color: #e0e0e0;
    margin-bottom: 1.5rem;
}

.hero-image {
    margin-top: 2rem;
    border-radius: 8px;
    overflow: hidden;
    max-height: 400px;
}

.hero-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: var(--accent-color);
    color: #ffffff;
    text-decoration: none;
    border-radius: 4px;
    transition: background-color 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn:hover {
    background-color: #0052a3;
    text-decoration: none;
}

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

.btn-secondary:hover {
    background-color: #1a1a1a;
}

/* ============================================
   CARDS
   ============================================ */

.card {
    background-color: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    margin: 1rem 0;
    transition: box-shadow 0.3s ease;
}

.card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.card-text {
    color: var(--text-light);
    font-size: 0.95rem;
}

.cards-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin: 2rem 0;
}

/* ============================================
   FEATURED CONTENT
   ============================================ */

.featured {
    background-color: var(--accent-light);
    border-left: 4px solid var(--accent-color);
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 4px;
}

.featured h3 {
    margin-top: 0;
    color: var(--accent-color);
}

/* ============================================
   TABLES
   ============================================ */

table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    background-color: #ffffff;
}

thead {
    background-color: var(--primary-color);
    color: #ffffff;
}

th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
}

td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
}

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

/* ============================================
   LISTS
   ============================================ */

ul, ol {
    margin: 1rem 0;
    padding-left: 2rem;
    color: var(--text-light);
}

li {
    margin: 0.5rem 0;
}

/* ============================================
   IMAGES
   ============================================ */

img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 4px;
}

.image-caption {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-top: 0.5rem;
    font-style: italic;
}

/* ============================================
   BREADCRUMB
   ============================================ */

.breadcrumb {
    display: flex;
    gap: 0.5rem;
    margin: 1rem 0;
    font-size: 0.9rem;
    color: var(--text-light);
}

.breadcrumb a {
    color: var(--accent-color);
}

.breadcrumb span {
    color: var(--text-light);
}

/* ============================================
   FAQ SECTION
   ============================================ */

.faq-item {
    border: 1px solid var(--border-color);
    margin: 1rem 0;
    border-radius: 4px;
    overflow: hidden;
}

.faq-question {
    background-color: var(--bg-light);
    padding: 1rem;
    cursor: pointer;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s ease;
}

.faq-question:hover {
    background-color: #f0f0f0;
}

.faq-answer {
    padding: 1rem;
    display: none;
    color: var(--text-light);
}

.faq-item.active .faq-answer {
    display: block;
}

.faq-toggle {
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle {
    transform: rotate(180deg);
}

/* ============================================
   FOOTER
   ============================================ */

footer {
    background-color: var(--primary-color);
    color: #ffffff;
    padding: 2rem 0 1rem 0;
    margin-top: 3rem;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: #ffffff;
    margin-top: 0;
}

.footer-section a {
    color: #b0b0b0;
    display: block;
    margin: 0.5rem 0;
}

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

.footer-bottom {
    border-top: 1px solid var(--secondary-color);
    padding-top: 1rem;
    text-align: center;
    font-size: 0.85rem;
    color: #b0b0b0;
}

/* ============================================
   FORMS
   ============================================ */

form {
    margin: 2rem 0;
}

.form-group {
    margin: 1.5rem 0;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-dark);
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="url"],
textarea,
select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
input[type="url"]:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px var(--accent-light);
}

textarea {
    resize: vertical;
    min-height: 150px;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    h3 {
        font-size: 1.25rem;
    }

    .hero {
        padding: 2rem 0;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .header-content {
        flex-direction: column;
        gap: 1rem;
    }

    nav {
        flex-direction: column;
        gap: 0.5rem;
        width: 100%;
    }

    nav a {
        display: block;
        padding: 0.5rem 0;
    }

    .menu-toggle {
        display: block;
        align-self: flex-end;
    }

    .cards-grid {
        grid-template-columns: 1fr;
    }

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

    table {
        font-size: 0.85rem;
    }

    th, td {
        padding: 0.5rem;
    }
}

@media (min-width: 769px) {
    .cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-content {
        grid-template-columns: repeat(3, 1fr);
    }

    nav {
        flex-direction: row;
    }
}

@media (min-width: 1024px) {
    .cards-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .container {
        padding: 0 2rem;
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

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

.text-right {
    text-align: right;
}

.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; }

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

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

.hidden {
    display: none;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}