/* ============================================
   PIWI GROUPE - Design System Moderne v2
   ============================================ */

/* === Variables CSS === */
:root {
    /* Couleurs principales */
    --color-primary: #0A2342;
    --color-secondary: #2C5F8D;
    --color-accent: #FF8C42;
    --color-bg-light: #F5F7FA;
    --color-white: #FFFFFF;
    --color-text: #1F2937;
    --color-text-light: #6B7280;
    --color-border: #E5E7EB;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
    --shadow-hover: 0 12px 32px rgba(0, 0, 0, 0.2);
    
    /* Transitions */
    --transition: all 0.3s ease;
}

/* === Reset & Base === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-white);
    padding-top: 90px;
}

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

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

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-primary);
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: var(--spacing-md);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    margin-bottom: var(--spacing-sm);
}

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

.lead-text {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

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

/* === Header & Navigation === */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--color-white);
    box-shadow: var(--shadow-md);
    z-index: 1000;
}

.header__content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
}

.header__logo img {
    height: 60px;
    width: auto;
}

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

.nav__menu a {
    font-weight: 500;
    color: var(--color-text);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav__menu a i {
    font-size: 1rem;
    opacity: 0.8;
}

.nav__menu a:hover {
    background: var(--color-bg-light);
    color: var(--color-accent);
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
}

.nav__toggle span {
    width: 25px;
    height: 3px;
    background: var(--color-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* === Hero Section === */
.hero {
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    background-image: 
        linear-gradient(135deg, rgba(10, 35, 66, 0.95), rgba(44, 95, 141, 0.92)),
        url('../images/fond.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: var(--color-white);
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
}

.hero__content {
    max-width: 900px;
    margin: 0 auto;
    animation: fadeInUp 0.8s ease-out;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    letter-spacing: 1px;
}

.hero h1 {
    color: var(--color-white);
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.hero__subtitle {
    font-size: 1.25rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: var(--spacing-lg);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero__buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
    font-size: 1rem;
}

.btn--primary {
    background: var(--color-accent);
    color: var(--color-white);
    box-shadow: 0 4px 12px rgba(255, 140, 66, 0.3);
}

.btn--primary:hover {
    background: #ff7a2e;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 140, 66, 0.4);
}

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

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

/* === Section === */
.section {
    padding: var(--spacing-xl) 0;
}

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

.section__header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
}

/* === Service Cards (Version Améliorée) === */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    position: relative;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    cursor: pointer;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-secondary));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card__icon {
    padding: 2.5rem 2rem 1.5rem;
    background: linear-gradient(135deg, var(--color-bg-light), #ffffff);
    text-align: center;
}

.service-card__icon img {
    width: 120px;
    height: 120px;
    object-fit: contain;
    margin: 0 auto;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
    transition: transform 0.4s ease;
}

.service-card:hover .service-card__icon img {
    transform: scale(1.1) rotate(5deg);
}

.service-card__content {
    padding: 2rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.service-card__title {
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
    font-weight: 700;
}

.service-card__description {
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.service-card__features {
    list-style: none;
    margin-bottom: 1.5rem;
}

.service-card__features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
    color: var(--color-text);
    font-size: 0.95rem;
}

.service-card__features li i {
    color: var(--color-accent);
    font-size: 1rem;
}

.service-card__link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-accent);
    font-weight: 600;
    transition: var(--transition);
    margin-top: auto;
}

.service-card__link i {
    transition: transform 0.3s ease;
}

.service-card:hover .service-card__link {
    gap: 0.75rem;
}

.service-card:hover .service-card__link i {
    transform: translateX(5px);
}

/* === Values Grid === */
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.value-card {
    background: var(--color-white);
    padding: 2rem;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.value-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-5px);
}

.value-card__icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-accent), #ff7a2e);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    box-shadow: 0 4px 15px rgba(255, 140, 66, 0.3);
}

.value-card__icon i {
    font-size: 2rem;
    color: var(--color-white);
}

.value-card h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.value-card p {
    color: var(--color-text-light);
    line-height: 1.6;
}

/* === Stats Section === */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
    padding: 3rem 0;
}

.stat-item {
    padding: 2rem;
}

.stat-item__number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-accent);
    display: block;
    margin-bottom: 0.5rem;
}

.stat-item__label {
    font-size: 1.1rem;
    color: var(--color-text-light);
    font-weight: 500;
}

/* === CTA Section === */
.cta {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-white);
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
    border-radius: var(--radius-lg);
    margin: var(--spacing-xl) 0;
}

.cta h2 {
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
}

.cta p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

/* === Footer === */
.footer {
    background: linear-gradient(135deg, #0A2342 0%, #1a3a5c 100%);
    color: rgba(255, 255, 255, 0.9);
    padding: var(--spacing-xl) 0 0;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-secondary), var(--color-accent));
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.footer__top {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__brand img {
    height: 60px;
    margin-bottom: var(--spacing-sm);
}

.footer__brand p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

.footer__social {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.footer__social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.footer__social a:hover {
    background: var(--color-accent);
    transform: translateY(-3px);
}

.footer__section h4 {
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    font-size: 1.125rem;
}

.footer__links {
    list-style: none;
}

.footer__links li {
    margin-bottom: 0.75rem;
}

.footer__links a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.footer__links a:hover {
    color: var(--color-accent);
    padding-left: 5px;
}

.footer__links a i {
    font-size: 0.875rem;
    opacity: 0.7;
}

.footer__contact p {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-sm);
}

.footer__contact i {
    color: var(--color-accent);
    width: 20px;
}

.footer__bottom {
    padding: var(--spacing-md) 0;
    margin-top: var(--spacing-md);
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
    margin: 0.5rem 0;
}

.footer__bottom a {
    color: var(--color-accent);
    font-weight: 600;
    transition: var(--transition);
}

.footer__bottom a:hover {
    color: #ff7a2e;
    text-decoration: underline;
}

/* === Form Styles === */
.form-group {
    margin-bottom: var(--spacing-md);
}

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

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

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(255, 140, 66, 0.1);
}

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

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin-top: 0.25rem;
}

.checkbox-group label {
    font-weight: 400;
    font-size: 0.875rem;
}

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

.fade-in {
    animation: fadeInUp 0.6s ease-out;
}

/* === Responsive === */
@media (max-width: 768px) {
    .nav__menu {
        position: fixed;
        top: 90px;
        left: 0;
        right: 0;
        background: var(--color-white);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }
    
    .nav__menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav__toggle {
        display: flex;
    }
    
    .hero {
        min-height: 60vh;
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .hero__buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .services-grid,
    .values-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .header__logo img {
        height: 45px;
    }
    
    body {
        font-size: 14px;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
}