/* Base Styles */
:root {
    --primary-color: #1e40af;
    --secondary-color: #1e40af;
    --accent-color: #3b82f6;
    --text-color: #1f2937;
    --light-gray: #f3f4f6;
    --dark-gray: #6b7280;
    --white: #ffffff;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
    padding-top: 80px; /* Compensation pour le header fixe */
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* Header & Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: var(--transition);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    position: relative;
    width: 100%;
}

/* Logo et texte */
.logo {
    display: flex;
    align-items: center;
    height: 60px;
    position: relative;
    z-index: 5;
    width: 200px;
    flex-shrink: 0;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    height: 100%;
}

.logo-icon {
    width: 40px;
    height: 40px;
    transition: transform 0.3s ease;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(90deg, #2563eb, #3b82f6, #60a5fa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 200% auto;
    margin-left: 0.5rem;
    white-space: nowrap;
    animation: gradient 3s ease infinite;
    position: relative;
    padding-right: 1.5rem;
    width: 120px;
    overflow: hidden;
}

/* Style du curseur */
.typing-cursor {
    display: inline-block;
    width: 2px;
    height: 1em;
    background: #333333;
    margin-left: 1px;
    vertical-align: middle;
    animation: blink 1.5s step-end infinite;
    box-shadow: 0 0 0 rgba(51, 51, 51, 0.3);
    transition: opacity 0.3s ease;
}

/* Media Queries pour la réactivité */
@media (max-width: 1024px) {
    .logo-text {
        font-size: 1.8rem;
    }

    .logo-icon {
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 768px) {
    .logo-text {
        font-size: 1.5rem;
        padding-right: 1.2rem;
    }

    .logo-icon {
        width: 40px;
        height: 40px;
    }

    .typing-cursor {
        height: 1em;
    }
}

@media (max-width: 480px) {
    .logo-text {
        font-size: 1.2rem;
        padding-right: 1rem;
    }

    .logo-icon {
        width: 35px;
        height: 35px;
    }

    .logo-link {
        gap: 0.3rem;
    }
}

/* Cursor styles removed for professional look */

@keyframes gradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes blink {
    from, to { opacity: 1; }
    50% { opacity: 0.3; }
}

.logo-link:hover .logo-icon {
    transform: scale(1.1);
}

.logo-link:hover .logo-text {
    color: var(--secondary-color);
}

.nav-links {
    display: flex;
    gap: 2rem;
    position: relative;
    z-index: 10;
}

.nav-links a {
    font-weight: 500;
    position: relative;
    padding: 0.8rem 1rem;
    transition: all 0.3s ease;
    color: #1f2937;
    text-decoration: none;
    border-radius: 8px;
    background: transparent;
}

.nav-links a:hover {
    color: #2563eb;
    background: rgba(37, 99, 235, 0.1);
}

.nav-links a.active {
    color: #2563eb;
    background: rgba(37, 99, 235, 0.1);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

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

.hamburger {
    display: none;
    cursor: pointer;
}

.hamburger .bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: var(--text-color);
    transition: var(--transition);
}


/* Professional Header Section */
.professional-header {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding: 6rem 5% 4rem;
    position: relative;
}

.professional-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #2563eb, #3b82f6, #60a5fa);
}

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

.header-text h1 {
    font-size: 3.5rem;
    font-weight: 800;
    color: #1e293b;
    margin-bottom: 1rem;
    line-height: 1.1;
}

.header-text h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #2563eb;
    margin-bottom: 1.5rem;
}

.header-text p {
    font-size: 1.1rem;
    color: #64748b;
    line-height: 1.6;
    margin-bottom: 2rem;
}

.header-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn-primary {
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    color: white;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
    background: linear-gradient(135deg, #1d4ed8, #2563eb);
}

.btn-secondary {
    background: transparent;
    border: 2px solid #2563eb;
    color: #2563eb;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: #2563eb;
    color: white;
    transform: translateY(-2px);
}

.header-stats {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: #2563eb;
    display: block;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: #64748b;
    font-weight: 500;
}

/* Animation d'entrée */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease-out forwards;
}

.fade-in-up.delay-1 { animation-delay: 0.2s; }
.fade-in-up.delay-2 { animation-delay: 0.4s; }
.fade-in-up.delay-3 { animation-delay: 0.6s; }

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

/* Footer */
footer {
    background-color: #1e293b;
    color: #e2e8f0;
    padding: 4rem 5% 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.footer-section h3 {
    color: white;
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}

.footer-section ul li {
    margin-bottom: 0.8rem;
}

.footer-section a {
    transition: var(--transition);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 3rem;
    margin-top: 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.back-to-top:hover {
    background: var(--secondary-color);
    transform: translateY(-3px);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

/* Responsive */
@media (max-width: 768px) {
    .header-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .header-text h1 {
        font-size: 2.5rem;
    }

    .header-text h2 {
        font-size: 1.2rem;
    }

    .header-buttons {
        justify-content: center;
    }

    .header-stats {
        flex-direction: row;
        justify-content: center;
        gap: 1rem;
    }

    .stat-item {
        flex: 1;
        min-width: 120px;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-text {
    animation: fadeInUp 1s ease-out;
}

/* AOS Animation Delay */
[data-aos] {
    opacity: 0;
    transition-property: opacity, transform;
}

[data-aos].aos-animate {
    opacity: 1;
    transform: translate(0);
}

/* Professional Header Styles */

/* Dropdown Styles */
.dropdown {
    position: relative;
}

.dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.dropdown-toggle i {
    font-size: 0.8rem;
    transition: transform 0.3s ease;
}

.dropdown:hover .dropdown-toggle i {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    padding: 1rem 0;
    min-width: 250px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.8rem 1.5rem;
    color: #374151;
    font-weight: 400;
    transition: all 0.3s ease;
    border-radius: 0;
    background: none;
}

.dropdown-menu a:hover {
    background: rgba(37, 99, 235, 0.1);
    color: #2563eb;
    padding-left: 2rem;
}

.dropdown-menu a i {
    width: 16px;
    color: #2563eb;
}

/* CTA Button */
.cta-button {
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    color: white !important;
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
    transition: all 0.3s ease;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
    background: linear-gradient(135deg, #1d4ed8, #2563eb);
}

/* Auth Buttons */
.auth-buttons {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-left: 1rem;
    position: relative;
    z-index: 10;
}

.auth-btn {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.auth-btn::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;
}

.auth-btn:hover::before {
    left: 100%;
}

.login-btn {
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 100%);
    color: white;
    border: 2px solid transparent;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.login-btn:hover {
    background: linear-gradient(135deg, #1d4ed8 0%, #2563eb 100%);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.4);
    border-color: rgba(255,255,255,0.2);
}

.register-btn {
    background: linear-gradient(135deg, #059669 0%, #10b981 100%);
    color: white;
    border: 2px solid transparent;
    box-shadow: 0 4px 15px rgba(5, 150, 105, 0.3);
}

.register-btn:hover {
    background: linear-gradient(135deg, #047857 0%, #059669 100%);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(5, 150, 105, 0.4);
    border-color: rgba(255,255,255,0.2);
}

/* About Section */
.about-section {
    padding: 6rem 5%;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

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

.about-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 2rem;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.feature-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.feature-text h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 0.5rem;
}

.feature-text p {
    color: #64748b;
    line-height: 1.5;
}

.about-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-placeholder {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 20px;
    display: flex;
        flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
        text-align: center;
}

.image-placeholder i {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.image-placeholder p {
    font-size: 1.2rem;
    font-weight: 500;
}

/* Testimonials Section */
.testimonials-section {
    padding: 6rem 5%;
    background: white;
}

.testimonials-container {
    max-width: 1200px;
    margin: 0 auto;
}

.testimonials-container h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    color: #1e293b;
        margin-bottom: 3rem;
    }

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

.testimonial-card {
    background: #f8fafc;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-5px);
}

.testimonial-content {
    margin-bottom: 1.5rem;
}

.testimonial-content p {
    font-style: italic;
    color: #374151;
    line-height: 1.6;
    font-size: 1.1rem;
}

.testimonial-author {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.author-info h4 {
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 0.25rem;
}

.author-info span {
    color: #64748b;
    font-size: 0.9rem;
}

.rating {
    color: #fbbf24;
}

/* CTA Section */
.cta-section {
    padding: 6rem 5%;
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    text-align: center;
    color: white;
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.cta-text {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-buttons .btn-primary,
.cta-buttons .btn-secondary {
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.cta-buttons .btn-primary {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
}

.cta-buttons .btn-primary:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-3px);
}

.cta-buttons .btn-secondary {
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.8);
    color: white;
}

.cta-buttons .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
    transform: translateY(-3px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .about-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about-features {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .about-content h2 {
        font-size: 2rem;
    }
    
    .image-placeholder {
        width: 250px;
        height: 250px;
    }
    
    .testimonials-container h2 {
        font-size: 2rem;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-title {
        font-size: 2rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-buttons .btn-primary,
    .cta-buttons .btn-secondary {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
        cursor: pointer;
        flex-direction: column;
        gap: 4px;
    }
    
    .hamburger .bar {
        width: 25px;
        height: 3px;
        background: #1f2937;
        transition: all 0.3s ease;
        border-radius: 2px;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .nav-links {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: white;
        flex-direction: column;
        justify-content: flex-start;
        padding: 2rem 0;
        box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
        transition: left 0.3s ease;
        overflow-y: auto;
    }

    .nav-links.active {
        left: 0;
    }

    .nav-links a {
        width: 90%;
        text-align: center;
        margin: 0.5rem 0;
        padding: 1rem;
    }
    
    .dropdown {
        width: 90%;
    }
    
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: rgba(37, 99, 235, 0.05);
        margin-top: 0.5rem;
        border-radius: 8px;
    }
    
    .dropdown-menu a {
        padding: 0.8rem 1rem;
    }
    
    .cta-button {
        width: 90%;
        text-align: center;
        margin-top: 1rem;
    }
    
    .auth-buttons {
        margin-left: 0;
        margin-top: 1rem;
        justify-content: center;
        gap: 1rem;
    }
    
    .auth-btn {
        width: 40px;
        height: 40px;
        font-size: 0.9rem;
    }
}