/*
Theme Name: Lead4You
Theme URI: https://lead4you.eu
Author: Lead4You Team
Author URI: https://lead4you.eu
Description: Thème WordPress moderne et professionnel pour l'agence de marketing digital Lead4You. Design premium, orienté conversion et optimisé pour la performance.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.4
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: lead4you
Tags: business, marketing, agency, modern, responsive, custom-menu, featured-images, translation-ready
*/

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

:root {
    /* Couleurs principales */
    --color-primary: #0066FF;
    --color-primary-dark: #0052CC;
    --color-secondary: #FF6B35;
    --color-accent: #00D9A5;
    --color-dark: #1A1F3A;
    --color-dark-light: #2D3550;
    --color-light: #F8F9FA;
    --color-white: #FFFFFF;
    --color-gray: #6C757D;
    --color-gray-light: #E9ECEF;
    
    /* Typographies */
    --font-heading: 'Montserrat', 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-body: 'Inter', 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Espacements */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 6rem;
    
    /* Transitions */
    --transition: all 0.3s ease;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-dark);
    background-color: var(--color-white);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--color-dark);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-sm);
}

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

a:hover {
    color: var(--color-primary-dark);
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-xxl) 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--color-dark);
    margin-bottom: var(--spacing-sm);
}

.section-title p {
    font-size: 1.125rem;
    color: var(--color-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.site-header {
    background: var(--color-white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    max-width: 1200px;
    margin: 0 auto;
}

.site-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    font-family: var(--font-heading);
}

.main-navigation ul {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.main-navigation a {
    color: var(--color-dark);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    transition: var(--transition);
}

.main-navigation a:hover {
    color: var(--color-primary);
}

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--color-primary-dark);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 102, 255, 0.3);
}

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

.btn-secondary:hover {
    background: #E55A2B;
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 107, 53, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

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

.btn-outline-white {
    background: rgba(255, 255, 255, 0.15);
    color: var(--color-white);
    border: 2px solid var(--color-white);
    backdrop-filter: blur(10px);
}

.btn-outline-white:hover {
    background: var(--color-white);
    color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 255, 255, 0.3);
}

.language-switcher {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-right: var(--spacing-md);
}

.language-switcher .lang-link {
    color: var(--color-dark);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem;
    border-radius: 6px;
    transition: var(--transition);
    font-size: 1.25rem;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.7;
}

.language-switcher .lang-link:hover {
    opacity: 1;
    transform: scale(1.1);
    background: var(--color-light);
}

.language-switcher .lang-link.active {
    opacity: 1;
    background: var(--color-light);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-dark);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero-section {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    padding: var(--spacing-xxl) 0;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.hero-content h1 {
    font-size: 3.5rem;
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.8s ease;
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-cta {
    animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-cta .btn {
    margin: 0 var(--spacing-xs);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   SERVICES SECTION
   ============================================ */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.service-card {
    background: var(--color-white);
    border-radius: 15px;
    padding: var(--spacing-lg);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    text-align: center;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--color-white);
}

.service-card h3 {
    color: var(--color-dark);
    margin-bottom: var(--spacing-sm);
}

.service-card p {
    color: var(--color-gray);
    margin-bottom: var(--spacing-md);
}

/* ============================================
   WHY CHOOSE US SECTION
   ============================================ */
.why-choose {
    background: var(--color-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.feature-item {
    text-align: center;
    padding: var(--spacing-md);
}

.feature-icon {
    font-size: 3rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.feature-item h4 {
    color: var(--color-dark);
    margin-bottom: var(--spacing-xs);
}

.feature-item p {
    color: var(--color-gray);
}

/* ============================================
   PROCESS SECTION
   ============================================ */
.process-steps {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    position: relative;
}

.process-step {
    flex: 1;
    min-width: 200px;
    text-align: center;
    position: relative;
}

.process-number {
    width: 60px;
    height: 60px;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto var(--spacing-sm);
}

.process-step h4 {
    color: var(--color-dark);
    margin-bottom: var(--spacing-xs);
}

.process-step p {
    color: var(--color-gray);
    font-size: 0.9rem;
}

/* ============================================
   TESTIMONIALS SECTION
   ============================================ */
.testimonials {
    background: var(--color-light);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.testimonial-card {
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.testimonial-text {
    font-style: italic;
    color: var(--color-gray);
    margin-bottom: var(--spacing-md);
    font-size: 1.05rem;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.testimonial-author strong {
    color: var(--color-dark);
}

.testimonial-author span {
    color: var(--color-gray);
    font-size: 0.9rem;
}

/* ============================================
   CONTACT FORM
   ============================================ */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--color-dark);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--color-gray-light);
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

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

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
    background: var(--color-dark);
    color: var(--color-white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-widget h4 {
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
}

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

.footer-widget a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .language-switcher {
        margin-right: 0;
        margin-bottom: var(--spacing-sm);
    }
    
    .main-navigation {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-white);
        box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
        padding: var(--spacing-md);
    }
    
    .main-navigation.active {
        display: block;
    }
    
    .main-navigation ul {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.5rem; }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-content p {
        font-size: 1.1rem;
    }
    
    .section {
        padding: var(--spacing-lg) 0;
    }
    
    .process-steps {
        flex-direction: column;
    }
    
    .services-grid,
    .features-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .hero-cta .btn {
        display: block;
        margin: var(--spacing-xs) 0;
        width: 100%;
    }
}

/* ============================================
   UTILITIES
   ============================================ */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }