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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        sans-serif;
    line-height: 1.6;
    color: #000;
    background-color: #fff;
    font-size: 16px;
}

/* ===== TYPOGRAPHIE ===== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    line-height: 1.7;
}

a {
    color: inherit;
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: #666;
}

ul {
    list-style: none;
}

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

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: #000;
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* ===== NAVIGATION MOBILE ===== */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        padding: 2rem;
        z-index: 999;
        width: 100%;
        height: 100vh;
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu li {
        margin: 1.5rem 0;
        text-align: center;
    }

    .nav-link {
        font-size: 1.5rem;
        padding: 1rem;
        display: block;
        width: 100%;
        text-align: center;
    }

    .hamburger {
        display: flex;
        z-index: 1001;
    }
}

/* ===== HAMBURGER ===== */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
    padding: 0.5rem;
    z-index: 1001;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #000;
    transition: all 0.3s ease;
    transform-origin: center;
}

/* Animation du hamburger */
.hamburger.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.hamburger.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ===== BOUTONS ===== */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border: 2px solid transparent;
    border-radius: 0;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
    text-decoration: none;
}

.btn-primary {
    background: #000;
    color: #fff;
    border-color: #000;
}

.btn-primary:hover {
    background: #fff;
    color: #000;
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: #000;
    border-color: #000;
}

.btn-secondary:hover {
    background: #000;
    color: #fff;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: #000;
    border-color: #000;
}

.btn-outline:hover {
    background: #000;
    color: #fff;
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.1rem;
}

/* ===== SECTIONS ===== */
section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.2rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

/* ===== HERO SECTIONS ===== */
.page-hero {
    padding: 8rem 0 5rem;
    text-align: center;
    background: #fafafa;
}

.page-hero h1 {
    margin-bottom: 1rem;
}

.page-hero p {
    font-size: 1.3rem;
    color: #666;
}

/* ===== CTA SECTION ===== */
.cta-section {
    background: #000;
    color: #fff;
    text-align: center;
}

.cta-section h2 {
    margin-bottom: 1rem;
}

.cta-section p {
    font-size: 1.2rem;
    color: #ccc;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-section .btn-primary {
    background: #fff;
    color: #000;
    border-color: #fff;
}

.cta-section .btn-primary:hover {
    background: transparent;
    color: #fff;
}

/* ===== FOOTER ===== */
.footer {
    background: #000;
    color: #fff;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-brand h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.footer-brand p {
    color: #ccc;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    color: #fff;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #ccc;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #fff;
}

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 1rem;
    text-align: center;
    color: #ccc;
}

/* ===== PLACEHOLDERS ===== */
.icon-placeholder {
    width: 60px;
    height: 60px;
    background: #f0f0f0;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

/* ===== UTILITAIRES ===== */
.highlight {
    color: #666;
    font-weight: 600;
}

.link-arrow {
    color: #000;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.link-arrow:hover {
    color: #666;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }

    .nav-container {
        padding: 0 1rem;
    }

    .nav-menu {
        display: none;
    }

    .hamburger {
        display: flex;
    }

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

    .footer-links {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    section {
        padding: 3rem 0;
    }

    .page-hero {
        padding: 6rem 0 3rem;
    }

    .btn {
        padding: 0.875rem 1.75rem;
        font-size: 0.95rem;
    }

    .btn-large {
        padding: 1rem 2rem;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.75rem;
    }

    .nav-container {
        padding: 0 0.75rem;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }

    .btn-large {
        padding: 0.875rem 1.75rem;
        font-size: 0.95rem;
    }
}