/* ===================================
   PASCAL THIBAULT - TRAVAILLEUR SOCIAL
   Style CSS Principal
   Inspiré d'un design épuré et professionnel
   =================================== */

/* === VARIABLES CSS === */
:root {
    /* Palette de couleurs apaisantes */
    --color-primary: #7a9b8e;       /* Vert sauge apaisant */
    --color-primary-dark: #5a7b6e;
    --color-secondary: #3d5a80;      /* Bleu marine confiance */
    --color-accent: #c8b8a8;         /* Beige chaud */
    --color-light: #f8f6f3;          /* Blanc cassé */
    --color-white: #ffffff;
    --color-text: #2d3748;           /* Gris foncé */
    --color-text-light: #6b7280;
    --color-border: #e5e5e5;
    --color-hover: #e8f5f1;
    
    /* Typographie */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Playfair Display', Georgia, serif;
    
    /* Espacements */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Transitions */
    --transition-speed: 0.3s;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    color: var(--color-text);
    line-height: 1.7;
    background-color: var(--color-white);
    overflow-x: hidden;
}

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

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

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

/* === TYPOGRAPHIE === */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: 1.8rem;
}

h4 {
    font-size: 1.5rem;
}

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

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

.container-wide {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

.section-light {
    background-color: var(--color-light);
}

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

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem var(--spacing-md);
}

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

.logo span {
    display: block;
    font-size: 0.75rem;
    font-family: var(--font-primary);
    font-weight: 400;
    color: var(--color-text-light);
    margin-top: 0.2rem;
}

/* === NAVIGATION === */
.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    list-style: none;
}

.nav-link {
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: all var(--transition-speed);
}

.nav-link:hover {
    background-color: var(--color-hover);
    color: var(--color-primary);
}

.nav-link.active {
    color: var(--color-primary);
    font-weight: 600;
}

.nav-contact {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.phone-number {
    font-weight: 600;
    color: var(--color-primary);
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.phone-number i {
    font-size: 1.1rem;
}

/* === BOUTONS === */
.btn {
    display: inline-block;
    padding: 0.9rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    text-align: center;
    transition: all var(--transition-speed);
    border: none;
    cursor: pointer;
    font-family: var(--font-primary);
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(122, 155, 142, 0.3);
}

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

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

/* === MENU MOBILE === */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.8rem;
    color: var(--color-primary);
    cursor: pointer;
    padding: 0.5rem;
}

/* === HERO SECTION === */
.hero {
    position: relative;
    height: 85vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(122, 155, 142, 0.9) 0%, rgba(61, 90, 128, 0.85) 100%);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://images.unsplash.com/photo-1506905925346-21bda4d32df4?w=1600&q=80') center/cover;
    z-index: -1;
}

.hero-content {
    text-align: center;
    color: var(--color-white);
    max-width: 800px;
    padding: var(--spacing-md);
    animation: fadeInUp 1s ease-out;
}

.hero h1 {
    color: var(--color-white);
    font-size: 3.5rem;
    margin-bottom: var(--spacing-sm);
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-light);
    font-weight: 300;
}

.hero-tagline {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
}

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

.fade-in {
    animation: fadeInUp 0.8s ease-out;
}

/* === CARDS === */
.card {
    background: var(--color-white);
    border-radius: 12px;
    padding: var(--spacing-md);
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    transition: all var(--transition-speed);
    height: 100%;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

.card-icon {
    width: 60px;
    height: 60px;
    background-color: var(--color-hover);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
    font-size: 1.8rem;
}

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

/* === GRILLE === */
.grid {
    display: grid;
    gap: var(--spacing-md);
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

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

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* === SECTION TITRE === */
.section-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title h2 {
    color: var(--color-primary);
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background-color: var(--color-accent);
    margin: var(--spacing-sm) auto 0;
    border-radius: 2px;
}

.section-subtitle {
    color: var(--color-text-light);
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto;
}

/* === TIMELINE === */
.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, var(--color-primary), var(--color-accent));
}

.timeline-item {
    position: relative;
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -2.5rem;
    top: 0.5rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--color-primary);
    border: 3px solid var(--color-white);
    box-shadow: 0 0 0 3px var(--color-hover);
}

.timeline-date {
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 0.3rem;
    font-size: 0.95rem;
}

.timeline-title {
    font-weight: 600;
    margin-bottom: 0.3rem;
    color: var(--color-text);
}

.timeline-location {
    color: var(--color-text-light);
    font-size: 0.9rem;
    font-style: italic;
    margin-bottom: 0.5rem;
}

/* === FORMULAIRE === */
.form-group {
    margin-bottom: var(--spacing-sm);
}

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

.form-input,
.form-textarea {
    width: 100%;
    padding: 0.9rem;
    border: 2px solid var(--color-border);
    border-radius: 8px;
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: all var(--transition-speed);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(122, 155, 142, 0.1);
}

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

/* === BADGE === */
.badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    background-color: var(--color-hover);
    color: var(--color-primary);
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
}

/* === FOOTER === */
.footer {
    background-color: var(--color-text);
    color: var(--color-light);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.footer-section h4 {
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
    font-size: 1.2rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.6rem;
}

.footer-links a {
    color: var(--color-light);
    transition: color var(--transition-speed);
}

.footer-links a:hover {
    color: var(--color-primary);
}

.footer-contact p {
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-contact i {
    color: var(--color-primary);
}

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

.otstcq-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: var(--spacing-sm);
    padding: 0.8rem;
    background-color: rgba(255,255,255,0.05);
    border-radius: 8px;
}

.otstcq-badge i {
    font-size: 1.5rem;
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .hero h1 {
        font-size: 2.8rem;
    }
    
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    .hero {
        height: 70vh;
        min-height: 500px;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    /* Navigation mobile */
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-white);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-contact {
        flex-direction: column;
        width: 100%;
    }
    
    .phone-number {
        justify-content: center;
    }
    
    .btn {
        width: 100%;
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .container,
    .container-wide {
        padding: 0 var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.95rem;
    }
}

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

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }