/* IttechV - Style inspiré du design moderne e-liberty */

/* Reset et variables */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Couleurs inspirées du design e-liberty */
    --primary-bg: #0f1629;
    --secondary-bg: #1a2332;
    --accent-color: #00d4aa;
    --text-white: #ffffff;
    --text-gray: #94a3b8;
    --text-light: #cbd5e1;
    --border-color: #2d3748;
    --gradient-bg: linear-gradient(135deg, #0f1629 0%, #1a2332 100%);
    --gradient-accent: linear-gradient(135deg, #00d4aa 0%, #00b894 100%);
    --shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 12px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--primary-bg);
    color: var(--text-white);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header moderne minimaliste */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    height: auto;
    background: rgba(15, 22, 41, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
}

.navbar {
    padding: 20px 0;
    position: relative;
    z-index: 1001;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
}

.brand-logo {
    height: 120px;
    width: auto;
    transition: var(--transition);
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.15));
    cursor: pointer;
}

.brand-logo:hover {
    filter: drop-shadow(0 4px 16px rgba(0, 212, 170, 0.4));
    transform: translateY(-2px) scale(1.02);
}

.nav-brand h1 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-white);
    letter-spacing: -0.02em;
}

.nav-brand h1 i {
    color: var(--accent-color);
    margin-right: 8px;
}

.tagline {
    font-size: 12px;
    color: var(--text-gray);
    font-weight: 400;
    margin-left: 36px;
}

.nav-menu {
    display: flex;
    gap: 40px;
    align-items: center;
    position: relative;
    z-index: 100;
}

.nav-link {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: var(--transition);
    position: relative;
    cursor: pointer;
    z-index: 10;
    padding: 10px 5px;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: var(--transition);
}

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

/* Hero Section moderne */
.hero {
    min-height: 100vh;
    background: var(--gradient-bg);
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 30% 20%, rgba(0, 212, 170, 0.1) 0%, transparent 50%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-text h1 {
    font-size: clamp(3rem, 5vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.hero-text .highlight {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 18px;
    color: var(--text-gray);
    margin-bottom: 40px;
    max-width: 500px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.btn {
    padding: 16px 32px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background: var(--gradient-accent);
    color: white;
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 25px 50px rgba(0, 212, 170, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--text-white);
    border: 2px solid var(--border-color);
}

.btn-outline:hover {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: white;
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image {
    width: 100%;
    max-width: 600px;
    height: 400px;
    background: linear-gradient(135deg, var(--secondary-bg) 0%, var(--border-color) 100%);
    border-radius: 20px;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.hero-image::before {
    content: '';
    position: absolute;
    top: 20%;
    right: 10%;
    width: 60px;
    height: 60px;
    background: var(--accent-color);
    border-radius: 50%;
    animation: float 3s ease-in-out infinite;
}

.hero-image::after {
    content: '';
    position: absolute;
    bottom: 20%;
    left: 15%;
    width: 100px;
    height: 4px;
    background: var(--gradient-accent);
    border-radius: 2px;
    animation: pulse 2s ease-in-out infinite alternate;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

@keyframes pulse {
    0% { opacity: 0.6; transform: scaleX(1); }
    100% { opacity: 1; transform: scaleX(1.2); }
}

/* Sections générales */
section {
    padding: 100px 0;
    position: relative;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-gray);
    text-align: center;
    margin-bottom: 60px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* About section */
.about {
    background: var(--secondary-bg);
    position: relative;
    overflow: hidden;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
}

.about-content {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 80px;
    align-items: start;
}

.section-header {
    margin-bottom: 48px;
}

.section-header .section-title {
    font-size: 42px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--text-white) 0%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.title-decoration {
    width: 80px;
    height: 4px;
    background: var(--gradient-accent);
    border-radius: 2px;
}

/* Founder Card */
.founder-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 24px;
    padding: 48px;
    backdrop-filter: blur(10px);
}

.founder-header {
    margin-bottom: 32px;
}

.founder-name {
    font-size: 28px;
    font-weight: 600;
    color: var(--text-white);
    line-height: 1.3;
}

.founder-name .highlight {
    color: var(--accent-color);
    font-weight: 700;
}

.founder-description {
    margin-bottom: 48px;
    padding: 8px 0;
}

.intro-text {
    color: var(--text-light);
    font-size: 18px;
    line-height: 2.2;
    margin-bottom: 32px;
    padding: 24px;
    background: rgba(0, 212, 170, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(0, 212, 170, 0.15);
}

.intro-text strong {
    color: var(--accent-color);
    font-weight: 600;
    background: rgba(0, 212, 170, 0.15);
    padding: 2px 8px;
    border-radius: 4px;
}

.mission-text {
    color: var(--text-light);
    font-size: 17px;
    line-height: 2;
    font-style: italic;
    padding: 24px 28px;
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.08), rgba(0, 184, 148, 0.05));
    border-left: 4px solid var(--accent-color);
    border-radius: 0 12px 12px 0;
}

.mission-text em {
    color: var(--accent-color);
    font-style: normal;
    font-weight: 600;
    background: rgba(0, 212, 170, 0.2);
    padding: 2px 10px;
    border-radius: 4px;
}

/* Expertise Grid */
.expertise-grid {
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.expertise-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.expertise-title i {
    color: var(--accent-color);
    font-size: 22px;
}

.expertise-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    width: 100%;
}

.expertise-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 18px;
    background: rgba(0, 212, 170, 0.06);
    border: 1px solid rgba(0, 212, 170, 0.2);
    border-radius: 14px;
    transition: var(--transition);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.expertise-item:hover {
    background: rgba(0, 212, 170, 0.1);
    border-color: var(--accent-color);
    transform: translateX(4px);
}

.expertise-icon {
    font-size: 28px;
    filter: grayscale(0.2);
}

.expertise-item span {
    color: var(--text-light);
    font-size: 15px;
    font-weight: 500;
}

/* Values Section */
.values-section {
    margin-top: 48px;
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.values-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: 28px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.values-title i {
    color: #ff6b6b;
    font-size: 22px;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.value-card {
    text-align: center;
    padding: 32px 24px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.value-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--accent-color);
    transform: translateY(-4px);
}

.value-icon-bg {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.15), rgba(0, 184, 148, 0.15));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid rgba(0, 212, 170, 0.3);
}

.value-icon {
    font-size: 32px;
}

.value-content h5 {
    color: var(--text-white);
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 8px;
}

.value-content p {
    color: var(--text-gray);
    font-size: 14px;
    line-height: 1.5;
}

/* Founder Photo Container */
.founder-photo-container {
    position: relative;
}

.photo-background {
    position: absolute;
    top: 20px;
    left: 20px;
    right: -20px;
    bottom: -20px;
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.1), rgba(0, 184, 148, 0.05));
    border-radius: 24px;
    z-index: 0;
}

.founder-photo {
    position: relative;
    z-index: 1;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
    border: 2px solid rgba(0, 212, 170, 0.2);
}

.profile-img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    display: block;
}

.photo-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(15, 22, 41, 0.98) 0%, transparent 100%);
    padding: 40px 32px;
}

.overlay-content h4 {
    color: white;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
}

.overlay-content p {
    color: var(--text-gray);
    font-size: 15px;
    margin-bottom: 20px;
    line-height: 1.5;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 44px;
    height: 44px;
    background: rgba(0, 212, 170, 0.15);
    border: 1px solid rgba(0, 212, 170, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-color);
    text-decoration: none;
    transition: var(--transition);
    font-size: 18px;
}

.social-link:hover {
    background: var(--accent-color);
    color: white;
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 10px 20px rgba(0, 212, 170, 0.3);
}

/* Contact CTA */
.contact-cta {
    margin-top: 32px;
    padding: 32px;
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.1), rgba(0, 184, 148, 0.05));
    border: 1px solid rgba(0, 212, 170, 0.2);
    border-radius: 20px;
    text-align: center;
}

.cta-content h4 {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: 12px;
}

.cta-content p {
    color: var(--text-gray);
    font-size: 15px;
    margin-bottom: 24px;
}

.btn-cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    background: var(--gradient-accent);
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 16px;
    transition: var(--transition);
    box-shadow: 0 10px 30px rgba(0, 212, 170, 0.2);
}

.btn-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(0, 212, 170, 0.3);
}

/* Services Grid */
.services {
    background: var(--primary-bg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.service-card {
    background: var(--secondary-bg);
    border-radius: var(--border-radius);
    padding: 40px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transition: var(--transition);
}

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

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
}

.service-icon {
    font-size: 48px;
    margin-bottom: 24px;
    display: block;
}

.service-card h3 {
    font-size: 20px;
    margin-bottom: 16px;
    color: var(--text-white);
}

.service-card p {
    color: var(--text-gray);
    line-height: 1.6;
    margin-bottom: 20px;
}

.service-features {
    list-style: none;
}

.service-features li {
    color: var(--text-gray);
    padding: 4px 0;
    position: relative;
    padding-left: 20px;
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

/* Contact Section */
.contact {
    background: var(--secondary-bg);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    margin-top: 60px;
}

.contact-info h3 {
    color: var(--accent-color);
    margin-bottom: 20px;
    font-size: 24px;
}

.contact-info p {
    color: var(--text-gray);
    margin-bottom: 30px;
    line-height: 1.7;
}

.contact-details {
    margin-top: 30px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
    color: var(--text-gray);
}

.contact-item i {
    color: var(--accent-color);
    font-size: 18px;
    width: 20px;
}

.contact-form {
    background: var(--primary-bg);
    padding: 40px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: 24px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 16px;
    background: var(--secondary-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-white);
    font-size: 16px;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.1);
}

.contact-form textarea {
    resize: vertical;
    height: 120px;
}

.contact-form button {
    width: 100%;
}

/* Footer */
.footer {
    background: var(--primary-bg);
    border-top: 1px solid var(--border-color);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    color: var(--text-white);
    margin-bottom: 20px;
    font-size: 18px;
}

.footer-section h4 {
    color: var(--text-white);
    margin-bottom: 16px;
    font-size: 16px;
}

.footer-section p {
    color: var(--text-gray);
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 8px;
}

.footer-section a {
    color: var(--text-gray);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--accent-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
    color: var(--text-gray);
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
    
    .navbar {
        padding: 16px 0;
    }
    
    .brand-logo {
        height: 80px;
    }
    
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .hero {
        padding: 180px 0 60px;
        min-height: auto;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero h1 {
        font-size: 32px;
        line-height: 1.2;
    }
    
    .hero-description {
        font-size: 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 12px;
    }
    
    .hero-buttons .btn {
        width: 100%;
        justify-content: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .founder-card {
        width: 100%;
        max-width: 100%;
    }
    
    .expertise-grid {
        grid-template-columns: 1fr;
    }
    
    .expertise-list {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .expertise-item {
        width: 100%;
        padding: 16px;
    }
    
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .expertise-grid {
        grid-template-columns: 1fr;
    }
}

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

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

/* Scrollbar personnalisée */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--primary-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #00b894;
}

/* Styles pour la page de pricing */
.pricing-hero {
    padding: 120px 0 60px;
    background: var(--gradient-bg);
    text-align: center;
}

.pricing-header h1 {
    font-size: 3rem;
    margin-bottom: 20px;
}

.billing-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-top: 40px;
}

.toggle-switch {
    position: relative;
    width: 60px;
    height: 30px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--border-color);
    transition: var(--transition);
    border-radius: 30px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 4px;
    bottom: 4px;
    background: white;
    transition: var(--transition);
    border-radius: 50%;
}

input:checked + .toggle-slider {
    background: var(--accent-color);
}

input:checked + .toggle-slider:before {
    transform: translateX(30px);
}

.discount {
    background: var(--accent-color);
    color: white;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    margin-left: 8px;
}

.pricing-plans {
    padding: 60px 0;
    background: var(--secondary-bg);
}

.plans-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.plan-card {
    background: var(--primary-bg);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 40px;
    text-align: center;
    position: relative;
    transition: var(--transition);
}

.plan-card.featured {
    border-color: var(--accent-color);
    transform: scale(1.05);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-accent);
    color: white;
    padding: 8px 24px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
}

.plan-header h3 {
    font-size: 24px;
    margin-bottom: 16px;
    color: var(--text-white);
}

.plan-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    margin-bottom: 20px;
}

.currency {
    font-size: 20px;
    color: var(--text-gray);
}

.amount {
    font-size: 48px;
    font-weight: 700;
    color: var(--text-white);
    margin: 0 4px;
}

.period {
    color: var(--text-gray);
    font-size: 16px;
}

.plan-features ul {
    list-style: none;
    text-align: left;
    margin: 30px 0;
}

.plan-features li {
    padding: 8px 0;
    color: var(--text-gray);
    display: flex;
    align-items: center;
    gap: 12px;
}

.plan-features .fa-check {
    color: var(--accent-color);
}

.plan-features .fa-times {
    color: var(--text-gray);
    opacity: 0.5;
}

.btn-block {
    width: 100%;
}

.plan-note {
    margin-top: 16px;
    font-size: 14px;
    color: var(--text-gray);
}

.comparison-table {
    padding: 60px 0;
    background: var(--primary-bg);
}

.table-container {
    overflow-x: auto;
    margin-top: 40px;
}

.comparison {
    width: 100%;
    border-collapse: collapse;
    background: var(--secondary-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.comparison th,
.comparison td {
    padding: 16px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.comparison th {
    background: var(--primary-bg);
    color: var(--text-white);
    font-weight: 600;
}

.comparison td {
    color: var(--text-gray);
}

.faq-section {
    padding: 60px 0;
    background: var(--secondary-bg);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.faq-item {
    background: var(--primary-bg);
    padding: 30px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.faq-item h3 {
    color: var(--accent-color);
    margin-bottom: 16px;
    font-size: 18px;
}

.faq-item p {
    color: var(--text-gray);
    line-height: 1.6;
}

/* Styles pour l'authentification */
.auth-page {
    background: var(--gradient-bg);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.auth-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    max-width: 1200px;
    width: 100%;
    background: var(--secondary-bg);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
    margin: 20px;
}

.auth-card {
    padding: 60px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.auth-header {
    text-align: center;
    margin-bottom: 40px;
}

.brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 32px;
    font-size: 24px;
    font-weight: 700;
    color: var(--text-white);
}

.brand i {
    color: var(--accent-color);
}

.auth-header h1 {
    font-size: 32px;
    margin-bottom: 12px;
    color: var(--text-white);
}

.auth-form {
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-white);
    font-weight: 500;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-gray);
    cursor: pointer;
}

.forgot-link {
    color: var(--accent-color);
    text-decoration: none;
    font-size: 14px;
}

.divider {
    text-align: center;
    margin: 24px 0;
    position: relative;
    color: var(--text-gray);
}

.divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--border-color);
    z-index: 1;
}

.divider span {
    background: var(--secondary-bg);
    padding: 0 16px;
    position: relative;
    z-index: 2;
}

.auth-footer {
    text-align: center;
    color: var(--text-gray);
}

.auth-footer a {
    color: var(--accent-color);
    text-decoration: none;
}

.auth-visual {
    background: var(--gradient-bg);
    padding: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.visual-content h2 {
    font-size: 32px;
    margin-bottom: 16px;
    color: var(--text-white);
}

.testimonial {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    padding: 30px;
    margin: 40px 0;
    backdrop-filter: blur(10px);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 32px;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-gray);
}

/* Styles pour le dashboard */
.dashboard-page {
    background: var(--primary-bg);
    min-height: 100vh;
}

.dashboard-header {
    background: var(--secondary-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 40px;
}

.dashboard-nav {
    display: flex;
    gap: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    border-radius: 8px;
    color: var(--text-gray);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
}

.nav-item:hover,
.nav-item.active {
    background: var(--primary-bg);
    color: var(--accent-color);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.notification-btn {
    position: relative;
    background: none;
    border: none;
    color: var(--text-gray);
    font-size: 18px;
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: var(--transition);
}

.notification-btn:hover {
    background: var(--primary-bg);
    color: var(--accent-color);
}

.notification-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    background: #f87171;
    color: white;
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 10px;
    min-width: 16px;
    text-align: center;
}

.user-menu {
    position: relative;
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: var(--transition);
}

.user-menu:hover {
    background: var(--primary-bg);
}

.user-avatar {
    width: 32px;
    height: 32px;
    background: var(--accent-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.user-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.user-name {
    font-weight: 600;
    color: var(--text-white);
    font-size: 14px;
}

.user-plan {
    font-size: 12px;
    color: var(--text-gray);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--secondary-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    min-width: 200px;
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: 1001;
}

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

.dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--text-gray);
    text-decoration: none;
    transition: var(--transition);
}

.dropdown-menu a:hover {
    background: var(--primary-bg);
    color: var(--accent-color);
}

.dropdown-divider {
    height: 1px;
    background: var(--border-color);
    margin: 8px 0;
}

.dashboard-main {
    margin-top: 70px;
    padding: 0;
}

.dashboard-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 30px 24px;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 40px;
}

.page-subtitle {
    color: var(--text-gray);
    margin-bottom: 0;
}

.header-actions {
    display: flex;
    gap: 12px;
    align-items: center;
}

.period-selector {
    background: var(--secondary-bg);
    border: 1px solid var(--border-color);
    color: var(--text-white);
    padding: 8px 12px;
    border-radius: 8px;
}

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-bottom: 40px;
}

.kpi-card {
    background: var(--secondary-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 24px;
    transition: var(--transition);
}

.kpi-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.kpi-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.kpi-header h3 {
    font-size: 14px;
    color: var(--text-gray);
    font-weight: 500;
}

.kpi-header i {
    color: var(--accent-color);
}

.kpi-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 8px;
}

.kpi-change {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 14px;
}

.kpi-change.positive {
    color: var(--accent-color);
}

.kpi-change.warning {
    color: #fbbf24;
}

.charts-section {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
    margin-bottom: 40px;
}

.main-chart {
    grid-row: 1 / 3;
}

.charts-grid {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.chart-container {
    background: var(--secondary-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 24px;
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.chart-header h3 {
    color: var(--text-white);
    font-size: 18px;
}

.chart-controls {
    display: flex;
    gap: 8px;
}

.chart-btn {
    padding: 6px 12px;
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-gray);
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
    transition: var(--transition);
}

.chart-btn.active,
.chart-btn:hover {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: white;
}

.chart-container canvas {
    max-height: 300px;
}

.bottom-section {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
}

.activity-panel,
.alerts-panel {
    background: var(--secondary-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 24px;
}

.activity-panel h3,
.alerts-panel h3 {
    color: var(--text-white);
    margin-bottom: 24px;
    font-size: 18px;
}

.activity-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.activity-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.activity-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 14px;
    flex-shrink: 0;
}

.activity-icon.success {
    background: var(--accent-color);
}

.activity-icon.info {
    background: #60a5fa;
}

.activity-icon.warning {
    background: #fbbf24;
}

.activity-content p {
    color: var(--text-white);
    margin-bottom: 4px;
}

.activity-content span {
    color: var(--text-gray);
    font-size: 14px;
}

.alert-item {
    padding: 16px;
    border-radius: 8px;
    border-left: 4px solid;
    margin-bottom: 16px;
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.alert-item.high {
    background: rgba(248, 113, 113, 0.1);
    border-color: #f87171;
}

.alert-item.medium {
    background: rgba(251, 191, 36, 0.1);
    border-color: #fbbf24;
}

.alert-icon {
    color: inherit;
    margin-top: 2px;
}

.alert-content h4 {
    color: var(--text-white);
    font-size: 14px;
    margin-bottom: 4px;
}

.alert-content p {
    color: var(--text-gray);
    font-size: 14px;
    margin-bottom: 8px;
    line-height: 1.4;
}

.alert-time {
    font-size: 12px;
    color: var(--text-gray);
    opacity: 0.8;
}

/* Product page styles */
.product-hero {
    padding: 120px 0 60px;
    background: var(--gradient-bg);
    text-align: center;
}

.product-header h1 {
    font-size: 3rem;
    margin-bottom: 20px;
}

.product-demo {
    margin-top: 60px;
}

.demo-container {
    background: var(--secondary-bg);
    border-radius: var(--border-radius);
    padding: 30px;
    border: 1px solid var(--border-color);
}

.demo-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.demo-controls {
    display: flex;
    gap: 8px;
}

.chart-container {
    height: 400px;
    margin-bottom: 24px;
}

.chart-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
}

.metric {
    text-align: center;
    padding: 16px;
    background: var(--primary-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.metric-label {
    display: block;
    font-size: 14px;
    color: var(--text-gray);
    margin-bottom: 8px;
}

.metric-value {
    display: block;
    font-size: 24px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 4px;
}

.metric-change {
    font-size: 12px;
}

.metric-change.positive {
    color: var(--accent-color);
}

.features {
    padding: 80px 0;
    background: var(--secondary-bg);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.feature-card {
    background: var(--primary-bg);
    padding: 40px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

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

.feature-icon {
    font-size: 48px;
    margin-bottom: 24px;
    color: var(--accent-color);
}

.feature-list {
    list-style: none;
    margin-top: 20px;
}

.feature-list li {
    color: var(--text-gray);
    padding: 4px 0;
    position: relative;
    padding-left: 20px;
}

.feature-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

.use-cases {
    padding: 80px 0;
    background: var(--primary-bg);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.case-card {
    background: var(--secondary-bg);
    padding: 30px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: var(--transition);
}

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

.case-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.case-results {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-top: 20px;
}

.result {
    background: var(--accent-color);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
}

.cta-section {
    padding: 80px 0;
    background: var(--secondary-bg);
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 40px;
}

.cta-note {
    margin-top: 20px;
    color: var(--text-gray);
    font-size: 14px;
}

.nav-cta {
    background: var(--gradient-accent);
    color: white !important;
    padding: 12px 20px !important;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    position: relative;
    z-index: 10;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 212, 170, 0.3);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.hero-stats .stat {
    text-align: center;
}

.hero-stats .stat-number {
    display: block;
    font-size: 32px;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 4px;
}

.hero-stats .stat-label {
    font-size: 14px;
    color: var(--text-gray);
}

/* Responsive Design pour les nouvelles pages */
@media (max-width: 1024px) {
    .auth-container {
        grid-template-columns: 1fr;
    }
    
    .auth-visual {
        display: none;
    }
    
    .dashboard-header {
        flex-direction: column;
        height: auto;
        padding: 16px 24px;
    }
    
    .dashboard-nav {
        display: none;
    }
    
    .charts-section {
        grid-template-columns: 1fr;
    }
    
    .bottom-section {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .plans-grid {
        grid-template-columns: 1fr;
    }
    
    .plan-card.featured {
        transform: none;
    }
    
    .faq-grid {
        grid-template-columns: 1fr;
    }
    
    .kpi-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-stats {
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .kpi-grid {
        grid-template-columns: 1fr;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }
    
    .brand-logo {
        height: 60px;
    }
    
    .hero h1 {
        font-size: 28px;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .btn {
        padding: 14px 24px;
        font-size: 14px;
    }
    
    .prediction-controls {
        grid-template-columns: 1fr;
    }
}

/* Styles pour l'outil de prédiction */
.prediction-tool-section {
    margin: 32px 0;
}

.prediction-card {
    background: var(--secondary-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    padding: 24px;
    transition: var(--transition);
}

.prediction-header {
    margin-bottom: 24px;
    text-align: center;
}

.prediction-header h3 {
    color: var(--text-white);
    font-size: 1.5rem;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.prediction-header h3 i {
    color: var(--accent-color);
}

.prediction-header p {
    color: var(--text-gray);
    font-size: 0.9rem;
}

.prediction-controls {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 24px;
    margin-bottom: 24px;
}

.upload-zone {
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    padding: 40px 24px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: rgba(15, 22, 41, 0.3);
}

.upload-zone:hover {
    border-color: var(--accent-color);
    background: rgba(0, 212, 170, 0.05);
}

.upload-zone.dragover {
    border-color: var(--accent-color);
    background: rgba(0, 212, 170, 0.1);
}

.upload-content i {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 16px;
}

.upload-content p {
    color: var(--text-light);
    margin-bottom: 8px;
}

.upload-link {
    color: var(--accent-color);
    cursor: pointer;
}

.upload-content small {
    color: var(--text-gray);
    font-size: 0.8rem;
}

.upload-success {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.upload-success i {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 16px;
}

.upload-success p {
    color: var(--text-light);
    font-weight: 500;
    margin-bottom: 8px;
}

.upload-success small {
    color: var(--text-gray);
}

.prediction-params {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.param-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.param-group label {
    color: var(--text-light);
    font-size: 0.9rem;
    font-weight: 500;
}

.param-group input {
    background: var(--primary-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
    color: var(--text-white);
    font-size: 0.9rem;
    transition: var(--transition);
}

.param-group input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.1);
}

.generate-prediction-btn {
    background: var(--gradient-accent);
    border: none;
    border-radius: 8px;
    padding: 14px 20px;
    color: var(--text-white);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: auto;
}

.generate-prediction-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 212, 170, 0.3);
}

.generate-prediction-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.prediction-results {
    border-top: 1px solid var(--border-color);
    padding-top: 24px;
    margin-top: 24px;
}

.results-header {
    margin-bottom: 24px;
}

.results-header h4 {
    color: var(--text-white);
    font-size: 1.2rem;
    margin-bottom: 16px;
}

.results-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.metric {
    background: var(--primary-bg);
    padding: 16px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.metric-label {
    color: var(--text-gray);
    font-size: 0.8rem;
    font-weight: 500;
}

.metric-value {
    color: var(--text-white);
    font-size: 1.2rem;
    font-weight: 600;
}

.results-chart {
    margin-top: 24px;
    height: 400px;
    background: var(--primary-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    padding: 16px;
}

.results-chart canvas {
    height: 100% !important;
}

@media (max-width: 768px) {
    .prediction-controls {
        grid-template-columns: 1fr;
    }
    
    .results-metrics {
        grid-template-columns: 1fr;
    }
}