:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #10b981;
    --accent: #f59e0b;
    --dark: #1f2937;
    --darker: #111827;
    --light: #f9fafb;
    --gray: #e5e7eb;
    --text: #374151;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Tajawal', sans-serif;
}

body {
    background-color: var(--light);
    color: var(--text);
    line-height: 1.6;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
header {
    background: rgba(255, 255, 255, 0.95);
    color: var(--dark);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(10px);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

    .logo i {
        margin-left: 10px;
    }

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

    .nav-links li {
        margin-right: 30px;
    }

    .nav-links a {
        color: var(--dark);
        text-decoration: none;
        font-weight: 500;
        transition: all 0.3s ease;
        position: relative;
    }

        .nav-links a:after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            bottom: -5px;
            right: 0;
            background: linear-gradient(to left, var(--primary), var(--secondary));
            transition: width 0.3s ease;
        }

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

.btn {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: 12px 28px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
    border: none;
    cursor: pointer;
}

    .btn:hover {
        transform: translateY(-3px);
        box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4);
    }

.btn-secondary {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
    box-shadow: none;
}

    .btn-secondary:hover {
        background: linear-gradient(135deg, var(--primary), var(--primary-dark));
        color: white;
        box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4);
    }

.btn-login {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
    padding: 10px 20px;
    margin-left: 15px;
}

    .btn-login:hover {
        background: var(--primary);
        color: white;
    }

.btn-whatsapp {
    background: #25D366;
    margin-top: 20px;
    display: inline-block;
}

    .btn-whatsapp:hover {
        background: #128C7E;
        box-shadow: 0 8px 20px rgba(18, 140, 126, 0.4);
    }

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.03) 0%, rgba(16, 185, 129, 0.03) 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

    .hero:before {
        content: '';
        position: absolute;
        width: 500px;
        height: 500px;
        border-radius: 50%;
        background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(16, 185, 129, 0.1) 100%);
        top: -250px;
        left: -250px;
        z-index: 0;
    }

    .hero:after {
        content: '';
        position: absolute;
        width: 400px;
        height: 400px;
        border-radius: 50%;
        background: linear-gradient(135deg, rgba(245, 158, 11, 0.1) 0%, rgba(99, 102, 241, 0.1) 100%);
        bottom: -200px;
        right: -200px;
        z-index: 0;
    }

.hero-content {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    color: var(--darker);
    font-weight: 700;
}

    .hero h1 span {
        background: linear-gradient(135deg, var(--primary), var(--secondary));
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }

.hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 40px;
    color: var(--text);
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 50px;
}

.nfc-tags-showcase {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.nfc-tag {
    width: 180px;
    height: 180px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

    .nfc-tag:hover {
        transform: translateY(-10px);
        box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
    }

    .nfc-tag:before {
        content: '';
        position: absolute;
        width: 100%;
        height: 100%;
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0) 100%);
    }

    .nfc-tag i {
        font-size: 4rem;
        color: white;
        z-index: 1;
    }

.tag-1 {
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
}

.tag-2 {
    background: linear-gradient(135deg, #10b981, #06b6d4);
}

.tag-3 {
    background: linear-gradient(135deg, #f59e0b, #ec4899);
}

/* Features Section */
.features {
    padding: 100px 0;
    background-color: white;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

    .section-title h2 {
        font-size: 2.5rem;
        color: var(--darker);
        margin-bottom: 15px;
        font-weight: 700;
    }

    .section-title p {
        color: var(--text);
        max-width: 700px;
        margin: 0 auto;
        font-size: 1.1rem;
    }

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: var(--light);
    border-radius: 15px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border: 1px solid var(--gray);
}

    .feature-card:hover {
        transform: translateY(-10px);
        box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        border-color: transparent;
    }

    .feature-card i {
        font-size: 3rem;
        margin-bottom: 25px;
        background: linear-gradient(135deg, var(--primary), var(--secondary));
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }

    .feature-card h3 {
        font-size: 1.5rem;
        margin-bottom: 15px;
        color: var(--darker);
    }

/* How It Works */
.how-it-works {
    padding: 100px 0;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.03) 0%, rgba(16, 185, 129, 0.03) 100%);
    position: relative;
}

    .how-it-works .section-title h2 {
        color: var(--darker);
    }

.steps {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-top: 50px;
    position: relative;
    z-index: 1;
}

.step {
    flex: 1;
    min-width: 250px;
    text-align: center;
    padding: 20px;
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 20px;
    box-shadow: 0 5px 15px rgba(99, 102, 241, 0.3);
}

.step h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--darker);
}

/* Pricing */
.pricing {
    padding: 100px 0;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.03) 0%, rgba(16, 185, 129, 0.03) 100%);
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.pricing-card {
    background: white;
    border-radius: 15px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border: 1px solid var(--gray);
    position: relative;
    overflow: hidden;
}

    .pricing-card:before {
        content: '';
        position: absolute;
        top: 0;
        right: 0;
        width: 100%;
        height: 5px;
        background: linear-gradient(to left, var(--primary), var(--secondary));
    }

    .pricing-card:hover {
        transform: translateY(-10px);
        box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    }

    .pricing-card h3 {
        font-size: 1.8rem;
        margin-bottom: 15px;
        color: var(--darker);
    }

.price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 20px;
}

    .price span {
        font-size: 1rem;
        color: var(--text);
        font-weight: normal;
    }

.pricing-features {
    list-style: none;
    margin-bottom: 30px;
}

    .pricing-features li {
        padding: 12px 0;
        border-bottom: 1px solid var(--gray);
    }

        .pricing-features li:last-child {
            border-bottom: none;
        }

/* Footer */
footer {
    background-color: var(--darker);
    color: white;
    padding: 80px 0 30px;
}

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

.footer-logo {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.footer-links h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--accent);
}

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

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: var(--gray);
    text-decoration: none;
    transition: all 0.3s ease;
}

    .footer-links a:hover {
        color: var(--secondary);
    }

.social-icons {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

    .social-icons a {
        color: white;
        font-size: 1.2rem;
        transition: all 0.3s ease;
        width: 40px;
        height: 40px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.1);
        display: flex;
        align-items: center;
        justify-content: center;
    }

        .social-icons a:hover {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            transform: translateY(-3px);
        }

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--gray);
    font-size: 0.9rem;
}

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

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

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .steps {
        flex-direction: column;
    }

    .step {
        margin-bottom: 40px;
    }

    .nfc-tags-showcase {
        flex-direction: column;
        align-items: center;
    }
   

    nav {
        display: flex;
        justify-content: center; /* center logo */
        align-items: center;
    }

    .logo {
        width: 100%;
        text-align: center;
    }

        .logo i {
            display: none; /* optional: hide NFC icon on mobile */
        }
}