:root {
    --bg-main: #ffffff;
    --bg-secondary: #f8fafc;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --accent: #0ea5e9;
    --border-color: #e2e8f0;
    --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.01);
    --hover-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --glass-bg: rgba(255, 255, 255, 0.8);
    --font-sans: 'Plus Jakarta Sans', system-ui, sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 100;
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.logo-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-img {
    height: 36px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-item {
    font-weight: 600;
    color: #cbd5e1;
    transition: color 0.3s ease;
}

.nav-item:hover, .nav-item.active {
    color: #ffffff;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    transition: background 0.3s ease, transform 0.2s ease;
    display: inline-block;
    box-shadow: 0 4px 6px -1px rgba(79, 70, 229, 0.3);
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--primary);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-secondary:hover {
    background: #e0e7ff;
    border-color: #c7d2fe;
}

/* Language Dropdown */
.lang-dropdown {
    position: relative;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: #fff;
    padding: 8px 18px;
    border-radius: 30px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.lang-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.2), 0 4px 6px -2px rgba(0, 0, 0, 0.1);
}

.lang-btn:active {
    transform: translateY(0);
}

.lang-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 10px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border-color);
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    z-index: 100;
}

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

.lang-menu a {
    display: flex;
    align-items: center;
    padding: 10px 16px;
    color: var(--text-main);
    font-size: 0.9rem;
    font-weight: 500;
    transition: background 0.2s;
    border-bottom: 1px solid #f1f5f9;
}

.lang-menu a:last-child {
    border-bottom: none;
}

.lang-menu a:hover {
    background: #f8fafc;
    color: var(--primary);
}

.lang-menu a.active {
    background: rgba(79, 70, 229, 0.05);
    color: var(--primary);
    font-weight: 600;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: #ffffff;
    cursor: pointer;
    padding: 0.5rem;
    align-items: center;
    justify-content: center;
}

/* Hero Section */
.hero {
    padding: 10rem 2rem 6rem;
    text-align: center;
    background: radial-gradient(circle at top right, rgba(14, 165, 233, 0.05) 0%, transparent 40%),
                radial-gradient(circle at top left, rgba(79, 70, 229, 0.05) 0%, transparent 40%);
    max-width: 1200px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(79, 70, 229, 0.1);
    color: var(--primary);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 2rem;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--text-main);
    letter-spacing: -0.02em;
}

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

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 800px;
    margin: 0 auto 3rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Dashboard Mockup */
.hero-mockup {
    margin-top: 4rem;
    border-radius: 16px;
    box-shadow: var(--hover-shadow);
    overflow: hidden;
    border: 1px solid var(--border-color);
    background: #fff;
    padding: 10px;
}

.hero-mockup img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    display: block;
}

/* Features Section */
.features {
    padding: 6rem 2rem;
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2.5rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.feature-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background: rgba(79, 70, 229, 0.1);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.feature-icon i {
    width: 24px;
    height: 24px;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-muted);
}

/* Templates Catalog */
.templates {
    padding: 6rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.templates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
}

.template-card {
    background: #fff;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: all 0.3s ease;
}

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

.template-img {
    width: 100%;
    height: 240px;
    object-fit: cover;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.template-content {
    padding: 2rem;
}

.template-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.template-title {
    font-size: 1.5rem;
    font-weight: 700;
}

.template-price {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--primary);
}

.template-desc {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.template-features {
    list-style: none;
    margin-bottom: 2rem;
}

.template-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 0.5rem;
    color: var(--text-main);
    font-size: 0.95rem;
}

.template-features li i {
    color: #10b981; /* green */
    width: 18px;
    height: 18px;
}

/* CTA Section */
.cta {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    text-align: center;
    padding: 6rem 2rem;
    margin-top: 4rem;
}

.cta h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
}

.cta p {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto 2.5rem;
    opacity: 0.9;
}

.cta .btn-secondary {
    background: #fff;
    color: var(--primary);
    border: none;
}

/* Footer */
footer {
    background: var(--bg-main);
    border-top: 1px solid var(--border-color);
    padding: 3rem 2rem;
    text-align: center;
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(15, 23, 42, 0.95);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        flex-direction: column;
        padding: 1.5rem 2rem;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
        gap: 1.5rem;
        align-items: flex-start;
        z-index: 999;
    }

    .nav-links.active {
        display: flex;
    }
}

@media (max-width: 480px) {
    .features-grid, .templates-grid {
        grid-template-columns: 1fr !important;
    }
    .hero h1 {
        font-size: 2rem !important;
    }
    .hero p {
        font-size: 1rem !important;
        margin-bottom: 2rem !important;
    }
    .nav-container {
        padding: 0 1rem !important;
    }
    .feature-card, .template-card {
        padding: 1.5rem !important;
    }
}