:root {
    --primary: #4F46E5;
    --primary-light: #EEF2FF;
    --secondary: #0EA5E9;
    --text-main: #1E293B;
    --text-muted: #64748B;
    --bg-white: #FFFFFF;
    --bg-light: #F8FAFC;
    --border: #E2E8F0;
    --heading-font: 'Plus Jakarta Sans', sans-serif;
    --body-font: 'Inter', sans-serif;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --accent-gradient: linear-gradient(135deg, #4F46E5 0%, #0EA5E9 100%);
}

* { margin: 0; padding: 0; box-sizing: border-box; scroll-behavior: smooth; }
body { font-family: var(--body-font); color: var(--text-main); background-color: var(--bg-white); line-height: 1.6; overflow-x: hidden; }
h1, h2, h3, h4 { font-family: var(--heading-font); color: var(--text-main); font-weight: 700; }
.container { max-width: 1240px; margin: 0 auto; padding: 0 24px; }
.text-gradient { background: var(--accent-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.accent { color: var(--primary); }

/* Progress Bar */
.top-progress { position: fixed; top: 0; height: 3px; width: 0%; background: var(--accent-gradient); z-index: 1001; transition: width 0.2s; }

/* Header */
.main-header { position: sticky; top: 0; z-index: 1000; background: rgba(255, 255, 255, 0.9); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); padding: 12px 0; }
.main-header .container { display: flex; justify-content: space-between; align-items: center; }
.logo { display: flex; align-items: center; gap: 12px; }
.logo-icon { width: 40px; height: 40px; background: var(--accent-gradient); border-radius: 10px; display: flex; align-items: center; justify-content: center; color: white; font-size: 1.25rem; box-shadow: 0 4px 10px rgba(79, 70, 229, 0.3); flex-shrink: 0; }
.logo span { font-size: 1.4rem; font-weight: 800; font-family: var(--heading-font); letter-spacing: -0.5px; }
.nav-links { display: flex; gap: 24px; }
.nav-links a { text-decoration: none; color: var(--text-muted); font-weight: 600; font-size: 0.95rem; transition: 0.3s; }
.nav-links a:hover { color: var(--primary); }
.nav-links .buy-link { color: var(--primary); }

.header-right { display: flex; align-items: center; gap: 20px; }

/* Language */
.lang-selector { position: relative; }
.lang-selector button { background: var(--bg-light); border: 1px solid var(--border); padding: 8px 14px; border-radius: 8px; font-weight: 600; font-size: 0.85rem; cursor: pointer; display: flex; align-items: center; gap: 8px; }
.lang-menu { position: absolute; top: 100%; right: 0; width: 150px; background: white; border: 1px solid var(--border); border-radius: 8px; padding: 8px; margin-top: 8px; box-shadow: var(--shadow-lg); opacity: 0; visibility: hidden; transform: translateY(10px); transition: 0.3s; }
.lang-selector:hover .lang-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.lang-menu div { padding: 8px 12px; border-radius: 6px; cursor: pointer; font-size: 0.9rem; transition: 0.2s; }
.lang-menu div:hover { background: var(--bg-light); color: var(--primary); }

/* Hero */
.hero { padding: 120px 0 80px; position: relative; overflow: hidden; background: var(--bg-light); }
.hero-bg-accent { position: absolute; top: -10%; right: -5%; width: 500px; height: 500px; background: radial-gradient(circle, rgba(79, 70, 229, 0.08) 0%, transparent 70%); z-index: 0; }
.hero .container { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; position: relative; z-index: 1; }
.hero-label { display: inline-block; padding: 6px 14px; background: var(--primary-light); color: var(--primary); border-radius: 100px; font-weight: 800; font-size: 0.75rem; letter-spacing: 1px; margin-bottom: 20px; }
.hero-content h1 { font-size: 3.75rem; line-height: 1.15; margin-bottom: 24px; color: #0F172A; }
.hero-content p { font-size: 1.25rem; color: var(--text-muted); margin-bottom: 40px; max-width: 540px; }
.hero-actions { display: flex; gap: 16px; margin-bottom: 40px; }
.hero-trust { display: flex; gap: 24px; color: var(--text-muted); font-size: 0.9rem; font-weight: 600; }
.hero-trust i { color: #10B981; margin-right: 4px; }
.hero-image img { width: 100%; border-radius: 20px; box-shadow: 0 40px 100px -20px rgba(0,0,0,0.15); border: 1px solid var(--border); }

/* Stats */
.quick-stats { padding: 60px 0; background: white; border-bottom: 1px solid var(--border); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
.stat-card h3 { font-size: 2.5rem; color: var(--primary); margin-bottom: 4px; }
.stat-card p { font-weight: 600; color: var(--text-muted); font-size: 0.95rem; }

/* Features */
.features { padding: 100px 0; }
.section-header { text-align: center; margin-bottom: 60px; }
.section-header h2 { font-size: 2.5rem; margin-bottom: 16px; }
.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: 32px; }
.f-card { padding: 40px; border-radius: 20px; background: white; border: 1px solid var(--border); transition: 0.3s; }
.f-card:hover { transform: translateY(-8px); border-color: var(--primary); box-shadow: var(--shadow-lg); }
.f-icon { width: 64px; height: 60px; background: var(--primary-light); border-radius: 12px; display: flex; align-items: center; justify-content: center; color: var(--primary); font-size: 1.75rem; margin-bottom: 24px; }
.f-card h3 { margin-bottom: 16px; font-size: 1.25rem; }
.f-card p { color: var(--text-muted); font-size: 0.95rem; }

/* Addons */
.addons-grid { padding: 100px 0; background: var(--bg-light); }
.addon-showcase { display: grid; grid-template-columns: 1fr 1.2fr; gap: 80px; align-items: center; margin-bottom: 120px; }
.addon-showcase.reverse { grid-template-columns: 1.2fr 1fr; }
.addon-showcase.reverse .addon-text { order: 2; }
.addon-showcase.reverse .addon-visual { order: 1; }
.addon-tag { display: inline-block; background: #FFEDD5; color: #EA580C; padding: 4px 10px; border-radius: 4px; font-weight: 800; font-size: 0.7rem; margin-bottom: 16px; }
.addon-text h2 { font-size: 2.75rem; margin-bottom: 20px; }
.addon-text p { font-size: 1.1rem; color: var(--text-muted); margin-bottom: 30px; }
.feature-list { list-style: none; }
.feature-list li { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; font-weight: 600; font-size: 0.95rem; color: #334155; }
.feature-list li i { color: var(--secondary); font-size: 1.1rem; }
.addon-visual img { width: 100%; border-radius: 12px; box-shadow: var(--shadow-lg); border: 1px solid var(--border); transition: 0.5s; }
.addon-visual img:hover { transform: scale(1.02); }

/* Security */
.security-section { padding: 100px 0; background: #0F172A; color: white; }
.security-section h2 { color: white; font-size: 3rem; margin-bottom: 20px; }
.security-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 80px; align-items: center; }
.security-content p { color: #94A3B8; font-size: 1.1rem; margin-bottom: 40px; }
.sec-item { display: flex; gap: 20px; margin-bottom: 32px; }
.sec-icon { width: 56px; height: 56px; background: rgba(255,255,255,0.05); border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; color: var(--secondary); flex-shrink: 0; }
.sec-text h4 { color: white; font-size: 1.15rem; margin-bottom: 6px; }
.sec-text p { color: #94A3B8; font-size: 0.9rem; margin-bottom: 0; }
.security-visual img { width: 100%; border-radius: 20px; opacity: 0.9; }

/* UX */
.ux-section { padding: 120px 0; }
.ux-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 80px; align-items: center; }
.ux-content h2 { font-size: 2.75rem; margin-bottom: 24px; }
.ux-content p { color: var(--text-muted); font-size: 1.1rem; margin-bottom: 40px; }
.ux-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; }
.ux-mini-card { padding: 20px; background: var(--bg-light); border-radius: 12px; border: 1px solid var(--border); text-align: center; font-weight: 700; font-size: 0.85rem; transition: 0.3s; }
.ux-mini-card i { display: block; font-size: 1.5rem; margin-bottom: 12px; color: var(--primary); }
.ux-mini-card:hover { border-color: var(--primary); background: var(--bg-white); }
.ux-visual img { width: 100%; border-radius: 16px; box-shadow: var(--shadow-lg); border: 1px solid var(--border); }

/* Sales CTA */
.sales-cta { padding: 100px 0; }
.cta-box { background: var(--accent-gradient); padding: 80px 40px; border-radius: 40px; text-align: center; color: white; }
.cta-box h2 { color: white; font-size: 3.5rem; margin-bottom: 20px; }
.cta-box p { font-size: 1.25rem; opacity: 0.9; margin-bottom: 48px; }
.cta-actions { display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; margin-bottom: 32px; }
.cta-footer { font-weight: 600; font-size: 0.9rem; opacity: 0.8; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 12px 28px; border-radius: 10px; font-weight: 700; text-decoration: none; transition: 0.3s; border: none; cursor: pointer; }
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { filter: brightness(1.1); transform: translateY(-3px); box-shadow: 0 10px 20px rgba(79, 70, 229, 0.2); }
.btn-secondary { background: white; color: var(--text-main); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--bg-light); border-color: var(--text-muted); }
.btn-dark { background: #0F172A; color: white; }
.btn-dark:hover { background: #1e293b; }
.btn-xl { padding: 18px 40px; font-size: 1.1rem; }

/* Footer */
.main-footer { padding: 100px 0 40px; background: var(--bg-light); border-top: 1px solid var(--border); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 60px; margin-bottom: 60px; }
.footer-about .logo { margin-bottom: 20px; }
.footer-about p { color: var(--text-muted); max-width: 320px; }
.footer-nav h4, .footer-contact h4 { margin-bottom: 24px; font-size: 1.1rem; }
.footer-nav a, .footer-contact a { display: block; text-decoration: none; color: var(--text-muted); margin-bottom: 12px; font-weight: 500; transition: 0.2s; }
.footer-nav a:hover, .footer-contact a:hover { color: var(--primary); }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 40px; text-align: center; color: var(--text-muted); font-size: 0.9rem; font-weight: 500; }

/* RTL Support */
body.rtl { direction: rtl; text-align: right; }
body.rtl .lang-menu { right: auto; left: 0; }
body.rtl .hero-trust i { margin-left: 4px; margin-right: 0; }
body.rtl .feature-list li i { margin-left: 12px; margin-right: 0; }

@media (max-width: 1024px) {
    .container { padding: 0 40px; }
    .hero .container, .stats-grid, .security-grid, .ux-grid, .addon-showcase, .addon-showcase.reverse { grid-template-columns: 1fr; text-align: center; }
    .hero-content { display: flex; flex-direction: column; align-items: center; }
    .hero-content h1 { font-size: 3rem; }
    .hero-content p { max-width: 100%; }
    .nav-links { display: none; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-about { grid-column: span 2; margin-bottom: 40px; text-align: center; }
    .footer-about a { justify-content: center; }
    .footer-about p { max-width: 100%; }
}

@media (max-width: 640px) {
    .hero-content h1 { font-size: 2.5rem; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .cta-box h2 { font-size: 2.5rem; }
    .cta-actions .btn { width: 100%; }
}