<style>
/* ==========================================
   STYLE.CSS - ESSOUK (Front-end)
   Version responsive – fond clair, textes lisibles
   ========================================== */

/* ========== VARIABLES ========== */
:root {
    --bg-primary: #F8FAFC;
    --bg-secondary: #F1F5F9;
    --bg-card: #FFFFFF;
    --bg-card-hover: #F8FAFC;
    --border-color: #E2E8F0;
    --border-hover: #CBD5E1;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
    --shadow-md: 0 10px 40px -12px rgba(0,0,0,0.08);
    --shadow-lg: 0 20px 60px -16px rgba(0,0,0,0.12);
    --text-primary: #0F172A;
    --text-secondary: #334155;
    --text-muted: #64748B;
    --accent: #1D4ED8;
    --accent-light: #DBEAFE;
    --accent-hover: #1E3A8A;
    --red-challenge: #DC2626;
    --red-challenge-hover: #B91C1C;
    --radius: 16px;
    --radius-sm: 10px;
    --transition: 0.25s ease;
    --font-arabic: 'Tajawal', sans-serif;
    --font-latin: 'Inter', sans-serif;
}

/* ========== RESET & BASE ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-latin);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 18px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ========== SCROLLBAR ========== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: #CBD5E1; border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: #94A3B8; }

/* ========== NAVBAR ========== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 14px 0;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}
.navbar.scrolled {
    background: rgba(255, 255, 255, 0.96);
    box-shadow: var(--shadow-sm);
}
.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px 24px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-shrink: 0;
}
.nav-brand img {
    height: 44px;
    width: auto;
    border-radius: 10px;
    object-fit: cover;
}
.nav-brand .brand-name {
    font-family: var(--font-arabic);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.nav-whatsapp {
    display: flex;
    align-items: center;
    gap: 10px;
    background: #ECFDF5;
    padding: 8px 20px 8px 14px;
    border-radius: 50px;
    border: 1px solid #D1FAE5;
    color: #065F46;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    flex-shrink: 0;
}
.nav-whatsapp:hover {
    background: #D1FAE5;
    border-color: #10B981;
    transform: scale(1.02);
}
.nav-whatsapp i {
    font-size: 1.2rem;
    color: #10B981;
}
.nav-whatsapp span {
    font-family: var(--font-arabic);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}
.nav-links a {
    font-size: 1rem;
    font-weight: 500;
    padding: 10px 22px;
    border-radius: 50px;
    transition: var(--transition);
    color: var(--text-secondary);
}
.nav-links a:hover,
.nav-links a.active {
    color: var(--text-primary);
    background: var(--bg-secondary);
}
.nav-links a.active {
    background: var(--accent-light);
    color: var(--accent);
}
.nav-links a i {
    margin-right: 8px;
    font-size: 0.9rem;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}
.nav-toggle span {
    width: 28px;
    height: 2.5px;
    background: var(--text-primary);
    border-radius: 4px;
    transition: var(--transition);
}
.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ========== HERO ========== */
.hero {
    padding: 160px 0 70px;
    text-align: center;
    background: var(--bg-primary);
}
.hero .container { position: relative; z-index: 2; }

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 8px 24px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 28px;
    box-shadow: var(--shadow-sm);
}
.hero-badge i { color: var(--accent); }

.hero h1 {
    font-family: var(--font-arabic);
    font-size: clamp(3rem, 7vw, 5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--text-primary);
}
.hero p {
    font-size: clamp(1.15rem, 1.5vw, 1.4rem);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 36px;
}

/* ===== CHALLENGE BUTTON (ROUGE, 2 PARAGRAPHES) ===== */
.challenge-hero-btn-wrapper {
    max-width: 850px;
    margin: 10px auto 0;
}
.challenge-hero-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    background: var(--red-challenge);
    color: #FFFFFF;
    border: none;
    border-radius: 60px;
    padding: 24px 44px;
    transition: var(--transition);
    box-shadow: 0 8px 28px rgba(220, 38, 38, 0.3);
    cursor: pointer;
    text-align: left;
}
.challenge-hero-btn:hover {
    background: var(--red-challenge-hover);
    box-shadow: 0 14px 40px rgba(220, 38, 38, 0.4);
    transform: translateY(-4px);
}
.challenge-hero-btn i {
    font-size: 2.4rem;
    color: #FFFFFF;
    flex-shrink: 0;
}
.challenge-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
    text-align: left;
}
.challenge-text p {
    font-family: var(--font-arabic);
    font-size: 22px;
    font-weight: 500;
    color: #FFFFFF;
    line-height: 1.5;
    margin: 0;
}

/* ===== LIEN DÉMO ===== */
.demo-link-wrapper {
    margin-top: 24px;
    text-align: center;
}
.demo-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-arabic);
    font-size: 20px;
    font-weight: 600;
    color: var(--accent);
    padding: 12px 28px;
    border: 2px solid var(--accent-light);
    border-radius: 50px;
    transition: var(--transition);
    background: var(--bg-card);
    box-shadow: var(--shadow-sm);
}
.demo-link:hover {
    background: var(--accent-light);
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}
.demo-link i {
    font-size: 1.2rem;
    transition: var(--transition);
}
.demo-link:hover i {
    transform: translateX(4px);
}

/* ========== SECTION TITRE ========== */
.section-title {
    font-family: var(--font-arabic);
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
    text-align: center;
    margin-bottom: 14px;
    color: var(--text-primary);
}
.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.2rem;
    max-width: 540px;
    margin: 0 auto 50px;
}

/* ========== PRICING ========== */
.pricing-section {
    padding: 70px 0 120px;
    background: var(--bg-primary);
}
.row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
}
.col-lg-5 {
    flex: 0 0 calc(50% - 15px);
    max-width: calc(50% - 15px);
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 44px 36px 38px;
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
    position: relative;
    box-shadow: var(--shadow-sm);
}
.pricing-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent);
    box-shadow: var(--shadow-lg);
}
.pricing-card.featured {
    border-color: var(--accent);
    background: #FFFFFF;
    box-shadow: 0 8px 30px -8px rgba(29, 78, 216, 0.12);
}
.pricing-card.featured:hover {
    box-shadow: 0 20px 60px -12px rgba(29, 78, 216, 0.18);
}
.badge-popular {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--accent-light);
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: 700;
    padding: 6px 16px;
    border-radius: 50px;
    font-family: var(--font-arabic);
    border: 1px solid rgba(29, 78, 216, 0.1);
}
.pricing-card h3 {
    font-family: var(--font-arabic);
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text-primary);
}
.pricing-card .price {
    font-size: 3.4rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 10px 0 4px;
    letter-spacing: -1px;
}
.pricing-card .price span {
    font-size: 1.3rem;
    font-weight: 400;
    color: var(--text-muted);
    margin-right: 6px;
}
.pricing-card .price-sub {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 22px;
}
.features-list {
    margin: 14px 0 32px;
    flex: 1;
}
.features-list li {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 9px 0;
    color: var(--text-secondary);
    font-size: 1rem;
    border-bottom: 1px solid var(--bg-secondary);
}
.features-list li:last-child {
    border-bottom: none;
}
.features-list li i {
    color: var(--accent);
    font-size: 1.1rem;
    width: 22px;
    text-align: center;
    flex-shrink: 0;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 16px 32px;
    border-radius: 60px;
    font-weight: 600;
    font-size: 1.05rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    font-family: var(--font-arabic);
    width: 100%;
}
.btn-lg {
    padding: 18px 36px;
    font-size: 1.1rem;
}
.btn-outline-primary {
    background: transparent;
    border: 1.5px solid var(--border-color);
    color: var(--text-primary);
}
.btn-outline-primary:hover {
    background: var(--bg-secondary);
    border-color: var(--text-primary);
    transform: translateY(-2px);
}
.btn-primary {
    background: var(--accent);
    color: #FFFFFF;
    border: 1.5px solid var(--accent);
}
.btn-primary:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 40px -8px rgba(29, 78, 216, 0.3);
}

/* ========== FOOTER ========== */
.footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
    padding: 40px 0 28px;
}
.footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}
.footer p {
    color: var(--text-muted);
    font-size: 0.9rem;
}
.footer-socials {
    display: flex;
    gap: 18px;
}
.footer-socials a {
    color: var(--text-muted);
    transition: var(--transition);
    font-size: 1.2rem;
}
.footer-socials a:hover {
    color: var(--text-primary);
    transform: translateY(-3px);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 992px) {
    body { font-size: 17px; }
    .col-lg-5 {
        flex: 0 0 100%;
        max-width: 520px;
    }
    .nav-links {
        order: 3;
        flex: 1 1 100%;
        justify-content: center;
        gap: 4px;
        display: none;
    }
    .nav-links.open {
        display: flex;
    }
    .nav-links a {
        font-size: 0.95rem;
        padding: 8px 16px;
    }
    .nav-toggle {
        display: flex;
    }
    .navbar .container {
        flex-wrap: wrap;
    }
    .nav-whatsapp {
        order: 2;
        margin-left: auto;
        padding: 6px 14px 6px 12px;
    }
    .nav-whatsapp span {
        display: none;
    }
    .nav-brand .brand-name {
        font-size: 1.5rem;
    }
    .nav-brand img {
        height: 36px;
    }
    .pricing-card .price {
        font-size: 2.8rem;
    }
}

@media (max-width: 576px) {
    body { font-size: 16px; }
    .hero {
        padding: 130px 0 40px;
    }
    .challenge-hero-btn {
        padding: 18px 24px;
        border-radius: 28px;
        flex-wrap: wrap;
        justify-content: center;
        text-align: center;
        gap: 12px;
    }
    .challenge-hero-btn i {
        font-size: 1.8rem;
    }
    .challenge-text {
        text-align: center;
        gap: 2px;
    }
    .challenge-text p {
        font-size: 20px;
    }
    .demo-link {
        font-size: 18px;
        padding: 10px 22px;
    }
    .pricing-card {
        padding: 30px 22px 26px;
    }
    .pricing-card .price {
        font-size: 2.4rem;
    }
    .pricing-card h3 {
        font-size: 1.5rem;
    }
    .footer .container {
        flex-direction: column;
        text-align: center;
    }
    .nav-brand .brand-name {
        font-size: 1.2rem;
    }
    .nav-brand img {
        height: 30px;
    }
}

@media (max-width: 400px) {
    .nav-links a {
        font-size: 0.85rem;
        padding: 6px 12px;
    }
    .nav-whatsapp {
        font-size: 0.8rem;
        padding: 4px 10px;
    }
    .challenge-text p {
        font-size: 18px;
    }
    .demo-link {
        font-size: 16px;
        padding: 8px 18px;
    }
}
</style>