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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f9f9f9;
}

/* ===== NAVIGATION ===== */
nav {
    background: linear-gradient(90deg, #1a1a2e, #16213e);
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: white;
}

.logo span {
    color: #00d2ff;
}

.logo small {
    display: block;
    font-size: 0.7rem;
    font-weight: normal;
    color: #aaa;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    align-items: center;
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-size: 0.95rem;
    transition: all 0.3s;
    padding: 0.5rem 1rem;
    border-radius: 20px;
}

.nav-links a:hover {
    color: #00d2ff;
    background: rgba(255,255,255,0.1);
}

.nav-links a.active {
    background: #00d2ff;
    color: #1a1a2e;
    font-weight: bold;
}

.badge-produit {
    display: inline-block;
    background: #00d2ff;
    color: #1a1a2e;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: bold;
    margin-left: 0.5rem;
}

.btn-nav {
    background: #00d2ff;
    color: #1a1a2e;
    padding: 0.6rem 1.5rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: bold;
    transition: transform 0.2s;
    white-space: nowrap;
}

.btn-nav:hover {
    transform: scale(1.05);
}

/* ===== HERO ===== */
.hero-saha {
    background: linear-gradient(135deg, #1a1a2e, #16213e, #0f3460);
    color: white;
    padding: 4rem 5%;
    text-align: center;
}

.hero-saha h1 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
    letter-spacing: 2px;
}

.hero-saha h1 span {
    color: #00d2ff;
}

.hero-saha .sous-titre {
    font-size: 1.3rem;
    color: #ccc;
    max-width: 700px;
    margin: 1rem auto 2rem;
}

.hero-saha .message-cle {
    display: inline-block;
    background: rgba(0,210,255,0.15);
    border: 1px solid #00d2ff;
    padding: 1.5rem 2.5rem;
    border-radius: 30px;
    font-size: 1.2rem;
    font-weight: bold;
    color: #00d2ff;
    margin-bottom: 2rem;
    max-width: 900px;
    line-height: 1.5;
    box-shadow: 0 5px 20px rgba(0,210,255,0.2);
}

.hero-saha .presentation {
    display: inline-block;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.3);
    padding: 0.8rem 2rem;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: bold;
    color: white;
    margin-top: 1rem;
}

/* ===== SECTIONS GÉNÉRIQUES ===== */
section {
    padding: 4rem 5%;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #1a1a2e;
}

.section-title span {
    color: #00d2ff;
}

.section-subtitle {
    text-align: center;
    color: #666;
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto 3rem;
}

/* ===== FONCTIONNALITÉS ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: white;
    border-radius: 15px;
    padding: 2.5rem;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s;
    border-top: 4px solid #00d2ff;
}

.feature-card:hover {
    transform: translateY(-10px);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h4 {
    margin-bottom: 1rem;
    color: #1a1a2e;
    font-size: 1.2rem;
}

.feature-card p {
    color: #666;
    font-size: 0.95rem;
}

/* ===== DÉMO ===== */
.demo-section {
    background: linear-gradient(135deg, #1a1a2e, #16213e);
    color: white;
    padding: 4rem 5%;
    border-radius: 20px;
    margin: 3rem auto;
    max-width: 1400px;
}

.demo-card {
    background: rgba(255,255,255,0.1);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.2);
    backdrop-filter: blur(10px);
    transition: transform 0.3s;
}

.demo-card:hover {
    transform: translateY(-10px);
}

.demo-card img {
    max-width: 100%;
    max-height: 400px;
    border-radius: 15px;
    margin-bottom: 1.5rem;
    box-shadow: 0 5px 20px rgba(0,0,0,0.3);
    border: 2px solid #00d2ff;
}

.demo-card h4 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: #00d2ff;
}

.demo-card .step-number {
    display: inline-block;
    background: #00d2ff;
    color: #1a1a2e;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    line-height: 35px;
    font-weight: bold;
    margin-bottom: 1rem;
}

.demo-card p {
    font-size: 0.95rem;
    color: #ccc;
    margin-bottom: 1rem;
}

.demo-card ul {
    text-align: left;
    list-style: none;
    padding-left: 1rem;
}

.demo-card ul li {
    padding: 0.3rem 0;
    font-size: 0.9rem;
    color: #aaa;
    position: relative;
}

.demo-card ul li::before {
    content: '✓ ';
    color: #00d2ff;
    font-weight: bold;
}

/* ===== À PROPOS ===== */
.apropos-saha {
    background: #1a1a2e;
    color: white;
    padding: 4rem 5%;
}

.apropos-saha h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.apropos-saha h2 span {
    color: #00d2ff;
}

.apropos-saha p {
    text-align: center;
    font-size: 1.1rem;
    color: #ccc;
    max-width: 800px;
    margin: 0 auto 3rem;
}

.apropos-values {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
    max-width: 1200px;
    margin: 0 auto;
}

.apropos-value {
    background: rgba(255,255,255,0.1);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid rgba(255,255,255,0.2);
    flex: 1;
    max-width: 300px;
    text-align: center;
}

.apropos-value h4 {
    margin-bottom: 1rem;
    color: #00d2ff;
    font-size: 1.3rem;
}

.apropos-value p {
    font-size: 0.95rem;
    color: #aaa;
}

/* ===== CONTACT ===== */
.contact {
    background: #f8f9fa;
    padding: 4rem 5%;
}

.contact h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #1a1a2e;
}

.contact h2 span {
    color: #00d2ff;
}

.contact p.sous-titre {
    text-align: center;
    color: #666;
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto 3rem;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto 3rem;
}

.contact-info-card {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    border-top: 4px solid #00d2ff;
}

.contact-info-card .icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.contact-info-card h4 {
    margin-bottom: 0.5rem;
    color: #1a1a2e;
    font-size: 1.1rem;
}

.contact-info-card p {
    color: #666;
    font-size: 0.95rem;
}

.contact-info-card a {
    color: #00d2ff;
    text-decoration: none;
}

.contact-info-card a:hover {
    text-decoration: underline;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background: white;
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
    color: #1a1a2e;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #00d2ff;
}

.btn-submit {
    width: 100%;
    background: #00d2ff;
    color: #1a1a2e;
    padding: 1rem;
    border: none;
    border-radius: 25px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.3s;
}

.btn-submit:hover {
    background: #00b8d9;
}

/* ===== FOOTER ===== */
footer {
    background: #0f0c29;
    color: #888;
    text-align: center;
    padding: 3rem;
    font-size: 0.9rem;
}

footer p {
    margin: 0.5rem 0;
}

footer a {
    color: #00d2ff;
    text-decoration: none;
}

footer .footer-logo {
    font-size: 1.5rem;
    color: white;
    font-weight: bold;
    margin-bottom: 1rem;
}

footer .footer-logo span {
    color: #00d2ff;
}

footer .footer-produit {
    font-size: 1rem;
    color: #aaa;
    margin: 1rem 0;
}

footer .footer-message {
    font-size: 1.1rem;
    color: #00d2ff;
    font-weight: bold;
    margin: 1.5rem 0;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.5;
}

footer .contact-info {
    margin: 2rem 0;
    padding: 1.5rem;
    background: rgba(255,255,255,0.05);
    border-radius: 15px;
    border: 1px solid rgba(255,255,255,0.1);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

footer .contact-info p {
    margin: 0.5rem 0;
    font-size: 0.95rem;
}

footer .contact-info a {
    color: #00d2ff;
    text-decoration: none;
}

footer .contact-info a:hover {
    text-decoration: underline;
}

footer .adiresy-btn {
    display: inline-block;
    background-color: #00d2ff;
    color: #1a1a2e;
    padding: 10px 20px;
    border-radius: 20px;
    text-decoration: none;
    font-weight: bold;
    margin-top: 10px;
    transition: background 0.3s;
}

footer .adiresy-btn:hover {
    background-color: #00b8d9;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero-saha h1 {
        font-size: 2.2rem;
    }

    .hero-saha .message-cle {
        font-size: 1rem;
        padding: 1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .demo-grid {
        grid-template-columns: 1fr;
    }

    .apropos-values {
        flex-direction: column;
    }

    .contact-info {
        grid-template-columns: 1fr;
    }
}