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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

/* ===== Navigation (Header) ===== */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(16, 20, 40, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
}

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

.nav-logo {
    font-size: 1.5rem;
    font-weight: bold;
    background: linear-gradient(90deg, #9d4edd, #6a4c93);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    cursor: pointer;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: #fff;
    text-decoration: none;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a:hover, .nav-links a.active {
    color: #9d4edd;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #9d4edd;
    transition: width 0.3s ease;
}

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

/* ===== Mega Menu ===== */
.nav-item-dropdown {
    position: relative;
}

.mega-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(16, 20, 40, 0.98);
    backdrop-filter: blur(15px);
    border-radius: 15px;
    padding: 2rem;
    min-width: 800px;
    max-width: 1000px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1001;
    border: 1px solid rgba(157, 78, 221, 0.2);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    margin-top: 1rem;
}

.mega-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.mega-menu-header {
    text-align: center;
    margin-bottom: 2rem;
}

.mega-menu-header h3 {
    color: #9d4edd;
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.mega-menu-header p {
    color: #b3b3b3;
    font-size: 0.9rem;
}

.mega-menu-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 2rem;
}

.mega-menu-column h4 {
    color: #9d4edd;
    font-size: 1rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid rgba(157, 78, 221, 0.3);
    font-weight: bold;
}

.mega-menu-items {
    list-style: none;
}

.mega-menu-items li {
    margin-bottom: 0.8rem;
}

.mega-menu-items a {
    color: #e0e0e0;
    text-decoration: none;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.8rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
}

.mega-menu-items a:hover {
    background: rgba(157, 78, 221, 0.2);
    color: #9d4edd;
    transform: translateX(5px);
}

.mega-menu-items a::before {
    content: '→';
    color: #9d4edd;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.mega-menu-items a:hover::before {
    opacity: 1;
}

.dropdown-arrow {
    margin-left: 0.5rem;
    font-size: 0.8rem;
    transition: transform 0.3s ease;
}

.nav-item-dropdown:hover .dropdown-arrow {
    transform: rotate(180deg);
}

/* ===== Mega Menu Responsive ===== */
@media (max-width: 1200px) {
    .mega-menu { min-width: 700px; }
    .mega-menu-grid { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 1024px) {
    .mega-menu { min-width: 600px; }
    .mega-menu-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
    .mega-menu {
        position: fixed;
        top: 80px;
        left: 1rem;
        right: 1rem;
        min-width: auto;
        max-width: none;
        transform: none;
        margin-top: 0;
    }
    .mega-menu.active { transform: none; }
    .mega-menu-grid { grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
}

@media (max-width: 480px) {
    .mega-menu-grid { grid-template-columns: 1fr; }
}

/* ===== Header CTAs ===== */
.nav-login {
    background: rgba(157, 78, 221, 0.1) !important;
    border: 2px solid rgba(157, 78, 221, 0.3) !important;
    padding: 0.5rem 1rem !important;
    border-radius: 25px !important;
    transition: all 0.3s ease !important;
    font-weight: bold !important;
}

.nav-login:hover {
    background: rgba(157, 78, 221, 0.2) !important;
    border-color: #9d4edd !important;
    color: #9d4edd !important;
    transform: translateY(-2px) !important;
}

.nav-login::after { display: none !important; }

.nav-signup {
    background: linear-gradient(135deg, #9d4edd, #6a4c93) !important;
    color: #fff !important;
    padding: 0.5rem 1rem !important;
    border-radius: 25px !important;
    transition: all 0.3s ease !important;
    font-weight: bold !important;
    box-shadow: 0 5px 15px rgba(157, 78, 221, 0.3) !important;
}

.nav-signup:hover {
    background: linear-gradient(135deg, #b865f0, #7a5aa6) !important;
    color: #fff !important;
    transform: translateY(-2px) !important;
    box-shadow: 0 8px 25px rgba(157, 78, 221, 0.4) !important;
}

.nav-signup::after { display: none !important; }

/* Mobile CTA Buttons */
.mobile-cta { display: none; }

/* Mega menu overlay (mobile) */
.mega-menu-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
}

@media (max-width: 768px) {
    .mega-menu-overlay.active { display: block; }
    .mega-menu.active { z-index: 1002; }
    .nav-item-dropdown:hover .dropdown-arrow { transform: none; }
}

/* ===== App Container ===== */
.app-container {
    min-height: 100vh;
    padding-top: 80px;
}

/* ===== Page Transition / Router ===== */
.page {
    display: none;
    animation: fadeIn 0.5s ease-in-out;
}
.page.active { display: block; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== Hero (Home) ===== */
.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 50%, #2d1b69 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    margin-top: -80px;
    padding-top: 80px;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    padding: 0 2rem;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: bold;
    color: #fff;
    margin-bottom: 1rem;
    opacity: 0;
    animation: slideInLeft 1s ease forwards 0.5s;
}

.hero-content .highlight {
    background: linear-gradient(90deg, #9d4edd, #6a4c93);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content p {
    font-size: 1.2rem;
    color: #b3b3b3;
    margin-bottom: 2rem;
    opacity: 0;
    animation: slideInLeft 1s ease forwards 0.8s;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, #9d4edd, #6a4c93);
    color: #fff;
    text-decoration: none;
    border-radius: 50px;
    font-weight: bold;
    transition: all 0.3s ease;
    opacity: 0;
    animation: slideInLeft 1s ease forwards 1.1s;
    position: relative;
    overflow: hidden;
}
.cta-button::before {
    content: '';
    position: absolute; top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}
.cta-button:hover::before { left: 100%; }
.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(157, 78, 221, 0.3);
}

/* Logo 3D */
.hero-logo {
    position: relative;
    width: 400px;
    height: 400px;
    perspective: 1000px;
    opacity: 0;
    animation: fadeIn 1s ease forwards 0.3s;
}

.logo-3d {
    position: relative;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    animation: rotateY 10s linear infinite;
}

@keyframes rotateY {
    from { transform: rotateY(0deg); }
    to { transform: rotateY(360deg); }
}

/* Lettre F en 3D */
.letter-f {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 150px;
    height: 200px;
    transform-style: preserve-3d;
}

.f-part {
    position: absolute;
    background: linear-gradient(135deg, #9d4edd, #6a4c93);
    box-shadow:
        0 0 30px rgba(157, 78, 221, 0.5),
        inset 0 0 20px rgba(255, 255, 255, 0.2);
}

.f-vertical { width: 40px; height: 200px; transform: translateZ(20px); }
.f-vertical-back {
    width: 40px; height: 200px; transform: translateZ(-20px);
    background: linear-gradient(135deg, #6a4c93, #4c3575);
}
.f-vertical-side {
    width: 40px; height: 200px; transform: rotateY(90deg) translateZ(20px);
    background: linear-gradient(135deg, #7b2cbf, #5a189a);
}
.f-horizontal-top { width: 120px; height: 40px; left: 0; transform: translateZ(20px); }
.f-horizontal-top-back {
    width: 120px; height: 40px; left: 0; transform: translateZ(-20px);
    background: linear-gradient(135deg, #6a4c93, #4c3575);
}
.f-horizontal-middle { width: 100px; height: 40px; left: 0; top: 80px; transform: translateZ(20px); }
.f-horizontal-middle-back {
    width: 100px; height: 40px; left: 0; top: 80px; transform: translateZ(-20px);
    background: linear-gradient(135deg, #6a4c93, #4c3575);
}

/* Orbites & électrons */
.orbit {
    position: absolute;
    top: 50%; left: 50%;
    border: 2px solid rgba(157, 78, 221, 0.2);
    border-radius: 50%;
    transform-style: preserve-3d;
}
.orbit1 { width: 350px; height: 350px; transform: translate(-50%, -50%) rotateX(60deg); animation: orbit1 4s linear infinite; }
.orbit2 { width: 380px; height: 380px; transform: translate(-50%, -50%) rotateY(60deg) rotateX(30deg); animation: orbit2 5s linear infinite reverse; }
.orbit3 { width: 400px; height: 400px; transform: translate(-50%, -50%) rotateZ(60deg) rotateX(45deg); animation: orbit3 6s linear infinite; }

@keyframes orbit1 {
    from { transform: translate(-50%, -50%) rotateX(60deg) rotateZ(0deg); }
    to   { transform: translate(-50%, -50%) rotateX(60deg) rotateZ(360deg); }
}
@keyframes orbit2 {
    from { transform: translate(-50%, -50%) rotateY(60deg) rotateX(30deg) rotateZ(0deg); }
    to   { transform: translate(-50%, -50%) rotateY(60deg) rotateX(30deg) rotateZ(360deg); }
}
@keyframes orbit3 {
    from { transform: translate(-50%, -50%) rotateZ(60deg) rotateX(45deg) rotateY(0deg); }
    to   { transform: translate(-50%, -50%) rotateZ(60deg) rotateX(45deg) rotateY(360deg); }
}

.electron {
    position: absolute;
    width: 12px; height: 12px;
    background: radial-gradient(circle, #ffffff, #9d4edd);
    border-radius: 50%;
    box-shadow:
        0 0 20px rgba(157, 78, 221, 0.8),
        0 0 40px rgba(157, 78, 221, 0.6),
        0 0 60px rgba(157, 78, 221, 0.4);
}
.electron1 { top: -6px; left: calc(50% - 6px); animation: pulse 2s ease-in-out infinite; }
.electron2 { bottom: -6px; left: calc(50% - 6px); animation: pulse 2s ease-in-out infinite 0.5s; }
.electron3 { top: calc(50% - 6px); right: -6px; animation: pulse 2s ease-in-out infinite 1s; }

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.3); opacity: 0.8; }
}

/* ===== Sections (générique) ===== */
.section { padding: 5rem 0; position: relative; }

.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: #333;
}
.section h2 .highlight {
    background: linear-gradient(90deg, #9d4edd, #6a4c93);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* About */
.about { background: #f8f9fa; }

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text {
    font-size: 1.1rem;
    color: #666;
    line-height: 1.8;
}

.about-image {
    background: linear-gradient(135deg, #9d4edd, #6a4c93);
    height: 300px;
    border-radius: 20px;
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 1.2rem; text-align: center;
    position: relative; overflow: hidden;
}
.about-image::before {
    content: '';
    position: absolute;
    top: -50%; left: -50%;
    width: 200%; height: 200%;
    background: repeating-linear-gradient(
        45deg,
        transparent, transparent 20px,
        rgba(255, 255, 255, 0.1) 20px,
        rgba(255, 255, 255, 0.1) 40px
    );
    animation: slide 10s linear infinite;
}
@keyframes slide {
    0% { transform: translate(-50%, -50%); }
    100% { transform: translate(-30%, -30%); }
}

/* Features */
.features { background: #fff; }

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: #fff;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}
.feature-card::before {
    content: '';
    position: absolute; top: 0; left: 0;
    width: 100%; height: 4px;
    background: linear-gradient(90deg, #9d4edd, #6a4c93);
}
.feature-card:hover {
    transform: translateY(-10px);
    border-color: #9d4edd;
    box-shadow: 0 20px 40px rgba(157, 78, 221, 0.2);
}
.feature-icon {
    width: 60px; height: 60px;
    background: linear-gradient(135deg, #9d4edd, #6a4c93);
    border-radius: 15px;
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 1.5rem;
    margin-bottom: 1rem;
}
.feature-card h3 { font-size: 1.3rem; margin-bottom: 1rem; color: #333; }
.feature-card p { color: #666; line-height: 1.6; }

/* Benefits */
.benefits { background: #fff; padding: 5rem 0; }

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}
.benefit-item {
    display: flex; align-items: flex-start; gap: 1rem;
    padding: 1.5rem; background: #f8f9fa; border-radius: 15px;
    border-left: 4px solid #9d4edd;
    transition: all 0.3s ease;
}
.benefit-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(157, 78, 221, 0.1);
}
.benefit-icon { font-size: 1.5rem; color: #9d4edd; margin-top: 0.2rem; }
.benefit-text strong { color: #333; display: block; margin-bottom: 0.5rem; }

.challenge-item { margin: 1rem 0; padding: 0.5rem 0; font-size: 1.1rem; line-height: 1.6; }

.consequence {
    margin-top: 2rem; padding: 1.5rem;
    background: #fff3cd; border: 1px solid #ffeaa7;
    border-radius: 10px; color: #856404; font-style: italic;
}

/* Stats */
.stats { background: linear-gradient(135deg, #9d4edd, #6a4c93); color: #fff; }
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem; text-align: center;
}
.stat-item h3 { font-size: 3rem; margin-bottom: 0.5rem; font-weight: bold; }
.stat-item p { font-size: 1.1rem; opacity: 0.9; }

/* Pricing */
.pricing { background: #f8f9fa; padding: 5rem 0; }
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem; margin-top: 3rem;
}
.pricing-card {
    background: #fff; border-radius: 20px; padding: 2rem; text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease; position: relative; border: 2px solid transparent;
}
.pricing-card.featured { border-color: #9d4edd; transform: scale(1.05); }
.pricing-card:hover { transform: translateY(-10px); box-shadow: 0 20px 40px rgba(157, 78, 221, 0.15); }
.pricing-card.featured:hover { transform: scale(1.05) translateY(-10px); }
.pricing-badge {
    position: absolute; top: -10px; left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #9d4edd, #6a4c93);
    color: #fff; padding: 0.5rem 1.5rem; border-radius: 20px;
    font-size: 0.9rem; font-weight: bold;
}
.pricing-header h3 { font-size: 1.5rem; margin-bottom: 1rem; color: #333; }
.price { font-size: 3rem; font-weight: bold; color: #9d4edd; margin-bottom: 0.5rem; }
.price span { font-size: 1rem; color: #666; }
.price-annual {
    font-size: 0.9rem; color: #666; margin-bottom: 1.5rem; font-style: italic;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    padding: 0.5rem 1rem; border-radius: 20px; border: 1px solid #e0e0e0;
}
.pricing-features { margin: 2rem 0; text-align: left; }
.pricing-features .feature { margin: 1rem 0; padding: 0.5rem 0; color: #666; }
.pricing-btn {
    width: 100%; padding: 1rem 2rem;
    background: linear-gradient(135deg, #9d4edd, #6a4c93);
    color: #fff; border: none; border-radius: 50px;
    font-size: 1rem; font-weight: bold; cursor: pointer; transition: all 0.3s ease;
}
.pricing-btn:hover { transform: translateY(-3px); box-shadow: 0 10px 30px rgba(157, 78, 221, 0.3); }

/* Contact */
.contact { background: #f8f9fa; }
.contact-content { text-align: center; max-width: 600px; margin: 0 auto; }
.contact-form { display: grid; gap: 1rem; margin-top: 2rem; }
.contact-form input, .contact-form textarea, .contact-form select {
    padding: 1rem; border: 2px solid #e0e0e0; border-radius: 10px;
    font-size: 1rem; transition: border-color 0.3s ease; background: #fff;
}
.contact-form input:focus, .contact-form textarea:focus, .contact-form select:focus {
    outline: none; border-color: #9d4edd;
}
.contact-form button {
    padding: 1rem 2rem; background: linear-gradient(135deg, #9d4edd, #6a4c93);
    color: #fff; border: none; border-radius: 50px; font-size: 1rem; font-weight: bold;
    cursor: pointer; transition: all 0.3s ease;
}
.contact-form button:hover { transform: translateY(-3px); box-shadow: 0 10px 30px rgba(157, 78, 221, 0.3); }

.testimonial {
    background: #fff; padding: 2rem; border-radius: 15px; margin: 2rem 0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1); border-left: 4px solid #9d4edd;
}
.testimonial blockquote { font-size: 1.2rem; font-style: italic; color: #333; margin-bottom: 1rem; }
.testimonial cite { color: #9d4edd; font-weight: bold; }

.cta-benefits {
    background: #fff; padding: 2rem; border-radius: 15px; margin: 2rem 0; text-align: center;
}
.cta-benefits h3 { color: #333; margin-bottom: 1rem; }
.benefit-list { display: flex; justify-content: center; gap: 2rem; flex-wrap: wrap; margin-top: 1rem; }
.benefit-list div { color: #9d4edd; font-weight: bold; }

/* ===== Pages internes (Dynamic Page) ===== */
.page-content { background: #f8f9fa; min-height: 100vh; padding: 2rem 0; }

.page-header {
    background: #fff; padding: 2rem 0; border-bottom: 1px solid #e0e0e0; margin-bottom: 2rem;
}
.page-title { max-width: 1000px; margin: 0 auto; padding: 0 2rem; }
.page-title h1 {
    color: #333; font-size: 2.5rem; margin-bottom: 0.5rem;
    border-bottom: 3px solid #9d4edd; padding-bottom: 1rem;
}
.page-content-wrapper { max-width: 1000px; margin: 0 auto; padding: 0 2rem; }

.content-section {
    background: #fff; padding: 3rem; border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1); margin-bottom: 3rem;
}
.content-section h2 { color: #9d4edd; margin: 2.5rem 0 1.5rem; font-size: 1.8rem; }
.content-section h3 { color: #333; margin: 2rem 0 1rem; font-size: 1.4rem; }
.content-section p { color: #666; line-height: 1.8; margin-bottom: 1.5rem; font-size: 1.1rem; }
.content-section ul { color: #666; line-height: 1.8; margin-bottom: 1.5rem; padding-left: 2rem; }
.content-section li { margin-bottom: 0.8rem; }

.info-box {
    background: linear-gradient(135deg, #f8f9fa, #ffffff);
    padding: 2rem; border-radius: 15px; margin: 2rem 0;
    border: 1px solid rgba(157, 78, 221, 0.1);
    box-shadow: 0 5px 15px rgba(157, 78, 221, 0.05);
}
.info-box strong { color: #9d4edd; }
.info-box h3 { color: #9d4edd; margin-top: 0; }

/* ===== Footer ===== */
footer {
    background: linear-gradient(135deg, #1a1f3a, #0a0e27);
    color: #fff; padding: 4rem 0 2rem;
}
.footer-content { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }

.footer-main {
    display: grid; grid-template-columns: 1fr 2fr;
    gap: 4rem; margin-bottom: 3rem;
}

.footer-brand h3 {
    font-size: 2rem;
    background: linear-gradient(90deg, #9d4edd, #6a4c93);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
}
.footer-brand p { color: #b3b3b3; font-size: 1.1rem; margin-bottom: 1rem; }

.footer-description p { color: #e0e0e0; font-weight: bold; margin-bottom: 1.5rem; }

.footer-badges { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.footer-badge {
    background: rgba(157, 78, 221, 0.2); color: #9d4edd;
    padding: 0.3rem 0.8rem; border-radius: 15px; font-size: 0.8rem; font-weight: bold;
    border: 1px solid rgba(157, 78, 221, 0.3);
}

.footer-links {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem;
}

.footer-column h4 { color: #9d4edd; font-size: 1.1rem; margin-bottom: 1rem; font-weight: bold; }
.footer-column ul { list-style: none; }
.footer-column li { margin-bottom: 0.8rem; }
.footer-column a {
    color: #b3b3b3; text-decoration: none; transition: all 0.3s ease;
    display: flex; align-items: center; gap: 0.5rem; cursor: pointer;
}
.footer-column a:hover { color: #9d4edd; transform: translateX(5px); }

.footer-bottom {
    border-top: 1px solid rgba(157, 78, 221, 0.2);
    padding-top: 2rem;
    display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center;
}
.footer-copyright p { color: #b3b3b3; margin-bottom: 0.5rem; }
.footer-copyright p:first-child { color: #fff; font-weight: bold; }

.footer-cta { text-align: right; }
.footer-cta p { color: #e0e0e0; margin-bottom: 1rem; }
.footer-buttons { display: flex; gap: 1rem; justify-content: flex-end; }

.footer-btn-demo,
.footer-btn-signup {
    padding: 0.8rem 1.5rem; border-radius: 25px; text-decoration: none;
    font-weight: bold; transition: all 0.3s ease; border: 2px solid transparent;
}
.footer-btn-demo {
    background: rgba(157, 78, 221, 0.2); color: #9d4edd; border-color: rgba(157, 78, 221, 0.5);
}
.footer-btn-demo:hover {
    background: rgba(157, 78, 221, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(157, 78, 221, 0.3);
}
.footer-btn-signup {
    background: linear-gradient(135deg, #9d4edd, #6a4c93); color: #fff;
    box-shadow: 0 5px 15px rgba(157, 78, 221, 0.3);
}
.footer-btn-signup:hover {
    background: linear-gradient(135deg, #b865f0, #7a5aa6);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(157, 78, 221, 0.4);
}

/* ===== Animations Utilitaires ===== */
@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-50px); }
    to   { opacity: 1; transform: translateX(0); }
}

/* (duplicated in source) */
@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

/* ===== Responsive (global) ===== */
@media (max-width: 768px) {
    .hero-container { grid-template-columns: 1fr; text-align: center; }
    .hero-content h1 { font-size: 2.5rem; }
    .about-content { grid-template-columns: 1fr; }
    .nav-links { display: none; }
    .hero-logo { width: 300px; height: 300px; }

    .mobile-cta {
        display: flex; gap: 0.5rem; margin-left: auto;
    }
    .mobile-cta .nav-login,
    .mobile-cta .nav-signup {
        font-size: 0.8rem !important; padding: 0.4rem 0.8rem !important;
    }

    .footer-main { grid-template-columns: 1fr; gap: 2rem; }
    .footer-links { grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
    .footer-bottom { grid-template-columns: 1fr; text-align: center; gap: 1.5rem; }
    .footer-cta { text-align: center; }
    .footer-buttons { justify-content: center; flex-direction: column; }
    .footer-badges { justify-content: center; }
}

@media (max-width: 480px) {
    .footer-links { grid-template-columns: 1fr; }
    .footer-buttons { gap: 0.5rem; }
    .footer-btn-demo, .footer-btn-signup { padding: 0.7rem 1.2rem; font-size: 0.9rem; }
    .mobile-cta { flex-direction: column; gap: 0.3rem; }
    .content-section { padding: 2rem 1.5rem; }
    .page-title h1 { font-size: 2rem; }
}

/* ===== Particules ===== */
.particle {
    position: absolute;
    width: 2px; height: 2px;
    background: #9d4edd; border-radius: 50%;
    animation: float 8s linear infinite;
}
@keyframes float {
    0% { transform: translate(0, 100vh) scale(0); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translate(0, -100vh) scale(1); opacity: 0; }
}

/* ===== Loading Bar ===== */
.loading {
    position: fixed; top: 0; left: 0;
    width: 100%; height: 3px;
    background: linear-gradient(90deg, #9d4edd, #6a4c93);
    z-index: 9999;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}
.loading.active { transform: scaleX(1); }