/* ====== CSS Variables / Design Tokens ====== */
:root {
    /* Colors */
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --primary-light: #818cf8;
    --accent: #06b6d4;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;

    /* Light theme */
    --bg: #f8fafc;
    --bg-card: #ffffff;
    --bg-card-hover: #f1f5f9;
    --bg-section-alt: #f1f5f9;
    --text: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --border: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0,0,0,.07), 0 2px 4px -2px rgba(0,0,0,.05);
    --shadow-lg: 0 20px 60px -15px rgba(0,0,0,.15);
    --glass: rgba(255,255,255,.7);
    --glass-border: rgba(255,255,255,.3);
    --nav-bg: rgba(255,255,255,.85);

    /* Typography */
    --font: 'Inter', 'Noto Sans Bengali', system-ui, sans-serif;
    --radius: 16px;
    --radius-sm: 10px;
    --transition: .3s cubic-bezier(.4,0,.2,1);
}

[data-theme="dark"] {
    --bg: #0f172a;
    --bg-card: #1e293b;
    --bg-card-hover: #334155;
    --bg-section-alt: #1a2332;
    --text: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    --border: #334155;
    --shadow: 0 4px 6px -1px rgba(0,0,0,.3);
    --shadow-lg: 0 20px 60px -15px rgba(0,0,0,.5);
    --glass: rgba(30,41,59,.8);
    --glass-border: rgba(51,65,85,.5);
    --nav-bg: rgba(15,23,42,.9);
}

/* ====== Reset & Base ====== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    transition: background var(--transition), color var(--transition);
    overflow-x: hidden;
}
a { text-decoration: none; color: inherit; transition: color var(--transition); }
img { max-width: 100%; height: auto; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ====== Buttons ====== */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 12px 28px; border-radius: var(--radius-sm);
    font-weight: 600; font-size: .95rem; border: 2px solid transparent;
    cursor: pointer; transition: all var(--transition);
    font-family: var(--font);
}
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 25px rgba(79,70,229,.35); }
.btn-outline { background: transparent; color: var(--text); border-color: var(--border); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.btn-white { background: #fff; color: var(--primary); border-color: #fff; }
.btn-white:hover { background: #f1f5f9; transform: translateY(-2px); }
.btn-outline-white { background: transparent; color: #fff; border-color: rgba(255,255,255,.4); }
.btn-outline-white:hover { background: rgba(255,255,255,.1); border-color: #fff; }
.btn-sm { padding: 8px 20px; font-size: .85rem; }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }
.btn-block { width: 100%; justify-content: center; }

/* ====== Navbar ====== */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: var(--nav-bg); backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: all var(--transition);
}
.navbar.scrolled { box-shadow: var(--shadow); }
.nav-container { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.nav-logo img { height: 38px; }
.nav-menu { list-style: none; display: flex; gap: 8px; }
.nav-menu a {
    padding: 8px 16px; border-radius: 8px; font-size: .9rem; font-weight: 500;
    color: var(--text-secondary); transition: all var(--transition);
}
.nav-menu a:hover, .nav-menu a.active { color: var(--primary); background: rgba(79,70,229,.08); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.theme-toggle, .lang-toggle {
    width: 40px; height: 40px; border-radius: 10px; border: 1px solid var(--border);
    background: var(--bg-card); color: var(--text); cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    font-size: .9rem; transition: all var(--transition); font-family: var(--font); font-weight: 700;
}
.theme-toggle:hover, .lang-toggle:hover { border-color: var(--primary); color: var(--primary); }
.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--text); transition: all var(--transition); border-radius: 2px; }

/* ====== Hero ====== */
.hero {
    padding: 140px 0 80px; position: relative; overflow: hidden;
    background: linear-gradient(135deg, rgba(79,70,229,.05) 0%, rgba(6,182,212,.05) 100%);
}
[data-theme="dark"] .hero { background: linear-gradient(135deg, rgba(79,70,229,.1) 0%, rgba(6,182,212,.08) 100%); }
.hero-bg-shapes { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.shape {
    position: absolute; border-radius: 50%; opacity: .08;
    animation: float 20s ease-in-out infinite;
}
.shape-1 { width: 600px; height: 600px; background: var(--primary); top: -200px; right: -100px; }
.shape-2 { width: 400px; height: 400px; background: var(--accent); bottom: -100px; left: -100px; animation-delay: -7s; }
.shape-3 { width: 300px; height: 300px; background: var(--success); top: 50%; left: 50%; animation-delay: -14s; }
@keyframes float { 0%,100% { transform: translate(0,0) scale(1); } 33% { transform: translate(30px,-30px) scale(1.05); } 66% { transform: translate(-20px,20px) scale(.95); } }

.hero-container { display: grid; grid-template-columns: 1fr 1.1fr; gap: 60px; align-items: center; }
.hero-badge {
    display: inline-block; padding: 8px 20px; border-radius: 50px; font-size: .85rem; font-weight: 600;
    background: rgba(79,70,229,.1); color: var(--primary); margin-bottom: 24px;
    border: 1px solid rgba(79,70,229,.15);
}
.hero h1 { font-size: 3.4rem; font-weight: 800; line-height: 1.15; margin-bottom: 20px; letter-spacing: -.02em; }
.gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-desc { font-size: 1.15rem; color: var(--text-secondary); margin-bottom: 32px; max-width: 520px; }
.hero-buttons { display: flex; gap: 16px; margin-bottom: 40px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 0; align-items: center; }
.stat-item { text-align: center; padding: 0 24px; }
.stat-item strong { display: block; font-size: 1.5rem; color: var(--primary); }
.stat-item span { font-size: .8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: .05em; }
.stat-divider { width: 1px; height: 40px; background: var(--border); }

.hero-screenshot-wrapper { position: relative; }
.hero-screenshot {
    border-radius: var(--radius); box-shadow: var(--shadow-lg);
    border: 1px solid var(--border); transition: transform var(--transition);
}
.hero-screenshot:hover { transform: scale(1.02); }
.floating-card {
    position: absolute; padding: 12px 20px; border-radius: 12px;
    background: var(--bg-card); box-shadow: var(--shadow-lg);
    display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: .85rem;
    border: 1px solid var(--border); animation: bounce 3s ease-in-out infinite;
}
.card-1 { top: -20px; left: -30px; color: var(--success); }
.card-1 i { color: var(--success); font-size: 1.2rem; }
.card-2 { bottom: 40px; right: -20px; color: var(--primary); animation-delay: -1.5s; }
.card-2 i { color: var(--primary); font-size: 1.2rem; }
@keyframes bounce { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

/* ====== Trusted Section ====== */
.trusted-section { padding: 40px 0; border-bottom: 1px solid var(--border); background: var(--bg-card); }
.trusted-label { text-align: center; font-size: .85rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: .1em; margin-bottom: 20px; }
.trusted-logos { display: flex; justify-content: center; flex-wrap: wrap; gap: 32px; }
.trusted-item {
    display: flex; align-items: center; gap: 10px; color: var(--text-muted);
    font-size: .9rem; font-weight: 500; padding: 8px 20px;
    border-radius: 50px; background: var(--bg); border: 1px solid var(--border);
}
.trusted-item i { font-size: 1.1rem; color: var(--primary); }

/* ====== Section Headers ====== */
.section-header { text-align: center; max-width: 680px; margin: 0 auto 56px; }
.section-badge {
    display: inline-block; padding: 6px 18px; border-radius: 50px; font-size: .8rem; font-weight: 700;
    color: var(--primary); background: rgba(79,70,229,.08); margin-bottom: 16px;
    text-transform: uppercase; letter-spacing: .08em;
}
.section-header h2 { font-size: 2.4rem; font-weight: 800; margin-bottom: 16px; letter-spacing: -.01em; }
.section-header p { color: var(--text-secondary); font-size: 1.1rem; }

/* ====== Features Grid ====== */
.features-section { padding: 100px 0; }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.feature-card {
    padding: 36px 28px; border-radius: var(--radius); background: var(--bg-card);
    border: 1px solid var(--border); transition: all var(--transition);
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--primary-light); }
.feature-icon {
    width: 56px; height: 56px; border-radius: 14px; display: flex; align-items: center; justify-content: center;
    font-size: 1.4rem; margin-bottom: 20px;
    background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--accent);
}
.feature-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; }
.feature-card p { color: var(--text-secondary); font-size: .9rem; line-height: 1.6; }

/* ====== Screenshots ====== */
.screenshots-section { padding: 100px 0; background: var(--bg-section-alt); }
.screenshot-tabs { display: flex; justify-content: center; gap: 8px; margin-bottom: 40px; flex-wrap: wrap; }
.tab-btn {
    padding: 10px 22px; border-radius: 50px; border: 1px solid var(--border);
    background: var(--bg-card); color: var(--text-secondary); font-size: .85rem;
    font-weight: 600; cursor: pointer; transition: all var(--transition); font-family: var(--font);
}
.tab-btn:hover { border-color: var(--primary); color: var(--primary); }
.tab-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.screenshot-display {
    max-width: 1000px; margin: 0 auto; border-radius: var(--radius);
    overflow: hidden; box-shadow: var(--shadow-lg); border: 1px solid var(--border);
    background: var(--bg-card); position: relative;
}
.browser-frame {
    display: flex; align-items: center; gap: 16px; padding: 14px 20px;
    background: var(--bg-section-alt); border-bottom: 1px solid var(--border);
}
.browser-dots { display: flex; gap: 6px; }
.browser-dots span { width: 12px; height: 12px; border-radius: 50%; }
.browser-dots span:nth-child(1) { background: #ef4444; }
.browser-dots span:nth-child(2) { background: #f59e0b; }
.browser-dots span:nth-child(3) { background: #10b981; }
.browser-url {
    flex: 1; padding: 6px 14px; border-radius: 8px; background: var(--bg);
    font-size: .8rem; color: var(--text-muted); font-family: monospace;
}
.screenshot-img { width: 100%; display: none; transition: opacity .4s ease; }
.screenshot-img.active { display: block; }

/* ====== Modules Grid ====== */
.modules-section { padding: 100px 0; }
.modules-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.module-item {
    display: flex; flex-direction: column; align-items: center; gap: 10px;
    padding: 24px 12px; border-radius: var(--radius-sm); background: var(--bg-card);
    border: 1px solid var(--border); transition: all var(--transition);
    text-align: center; font-size: .8rem; font-weight: 600; color: var(--text-secondary);
}
.module-item:hover { transform: translateY(-4px); border-color: var(--primary); box-shadow: var(--shadow); }
.module-item i { font-size: 1.6rem; color: var(--primary); }

/* ====== Pricing ====== */
.pricing-section { padding: 100px 0; background: var(--bg-section-alt); }
.pricing-card {
    max-width: 560px; margin: 0 auto; padding: 48px 40px; border-radius: 24px;
    background: var(--bg-card); border: 2px solid var(--primary);
    box-shadow: 0 25px 80px -20px rgba(79,70,229,.2); position: relative; overflow: hidden;
}
.pricing-popular {
    position: absolute; top: 20px; right: -32px; transform: rotate(45deg);
    background: var(--primary); color: #fff; padding: 6px 40px; font-size: .75rem; font-weight: 700;
}
.pricing-header { text-align: center; margin-bottom: 32px; }
.pricing-header h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 16px; }
.pricing-amount { display: flex; align-items: baseline; justify-content: center; gap: 4px; }
.currency { font-size: 1.8rem; font-weight: 700; color: var(--primary); }
.price { font-size: 3.5rem; font-weight: 900; color: var(--text); letter-spacing: -.03em; }
.period { font-size: .95rem; color: var(--text-muted); margin-left: 8px; }
.pricing-hosting { margin-top: 8px; font-size: .9rem; color: var(--success); font-weight: 600; }
.pricing-features { list-style: none; margin-bottom: 32px; }
.pricing-features li { display: flex; align-items: center; gap: 12px; padding: 10px 0; font-size: .95rem; color: var(--text-secondary); border-bottom: 1px solid var(--border); }
.pricing-features li:last-child { border-bottom: none; }
.pricing-features i { color: var(--success); font-size: .9rem; flex-shrink: 0; }
.pricing-note { text-align: center; margin-top: 16px; font-size: .85rem; color: var(--text-muted); }

/* ====== FAQ ====== */
.faq-section { padding: 100px 0; }
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius-sm); margin-bottom: 12px; overflow: hidden; background: var(--bg-card); }
.faq-question {
    width: 100%; padding: 20px 24px; display: flex; justify-content: space-between; align-items: center;
    background: none; border: none; font-size: 1rem; font-weight: 600; color: var(--text);
    cursor: pointer; text-align: left; font-family: var(--font); transition: all var(--transition);
}
.faq-question:hover { color: var(--primary); }
.faq-question i { transition: transform var(--transition); color: var(--text-muted); }
.faq-item.active .faq-question i { transform: rotate(180deg); color: var(--primary); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .4s ease, padding .4s ease; }
.faq-item.active .faq-answer { max-height: 300px; padding: 0 24px 20px; }
.faq-answer p { color: var(--text-secondary); font-size: .9rem; line-height: 1.7; }

/* ====== CTA Section ====== */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary) 0%, #7c3aed 50%, var(--accent) 100%);
}
.cta-content { text-align: center; color: #fff; }
.cta-content h2 { font-size: 2.4rem; font-weight: 800; margin-bottom: 16px; }
.cta-content p { font-size: 1.15rem; opacity: .9; margin-bottom: 32px; }
.cta-buttons { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* ====== Contact ====== */
.contact-section { padding: 100px 0; background: var(--bg-section-alt); }
.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 48px; }
.contact-info { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-card {
    padding: 28px 20px; border-radius: var(--radius-sm); background: var(--bg-card);
    border: 1px solid var(--border); text-align: center; transition: all var(--transition);
}
.contact-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--primary); }
.contact-card i { font-size: 1.8rem; color: var(--primary); margin-bottom: 12px; }
.contact-card h4 { font-size: .85rem; color: var(--text-muted); margin-bottom: 8px; text-transform: uppercase; letter-spacing: .05em; }
.contact-card a { color: var(--text); font-weight: 600; font-size: .9rem; }
.contact-card a:hover { color: var(--primary); }
.contact-form { display: flex; flex-direction: column; gap: 16px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-form input, .contact-form select, .contact-form textarea {
    padding: 14px 18px; border-radius: var(--radius-sm); border: 1px solid var(--border);
    background: var(--bg-card); color: var(--text); font-size: .95rem; font-family: var(--font);
    transition: all var(--transition); width: 100%;
}
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus {
    outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79,70,229,.1);
}
.contact-form textarea { resize: vertical; min-height: 100px; }

/* ====== Footer ====== */
.footer { padding: 60px 0 0; background: #0f172a; color: #cbd5e1; }
[data-theme="dark"] .footer { background: #020617; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid #1e293b; }
.footer-logo { height: 36px; margin-bottom: 16px; }
.footer-brand p { font-size: .9rem; line-height: 1.6; color: #94a3b8; margin-bottom: 16px; }
.footer-social { display: flex; gap: 12px; }
.footer-social a {
    width: 40px; height: 40px; border-radius: 10px; background: #1e293b;
    display: flex; align-items: center; justify-content: center; color: #94a3b8;
    transition: all var(--transition);
}
.footer-social a:hover { background: var(--primary); color: #fff; }
.footer-links h4 { font-size: .85rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: #f1f5f9; margin-bottom: 16px; }
.footer-links a { display: block; font-size: .9rem; color: #94a3b8; padding: 4px 0; transition: color var(--transition); }
.footer-links a:hover { color: var(--primary-light); }
.footer-bottom { text-align: center; padding: 20px 0; font-size: .85rem; color: #64748b; }
.footer-bottom a { color: var(--primary-light); }

/* ====== How It Works ====== */
.howit-section { padding: 100px 0; background: var(--bg-section-alt); }
.steps-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.step-card { padding: 36px 28px; border-radius: var(--radius); background: var(--bg-card); border: 1px solid var(--border); text-align: center; transition: all var(--transition); position: relative; }
.step-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.step-num { width: 40px; height: 40px; border-radius: 50%; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 1.1rem; margin: 0 auto 16px; }
.step-card i { font-size: 2rem; color: var(--primary); margin-bottom: 16px; }
.step-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.step-card p { color: var(--text-secondary); font-size: .88rem; }

/* ====== Deep Dive ====== */
.deepdive-section { padding: 100px 0; }
.deepdive-item { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; margin-bottom: 64px; }
.deepdive-item.reverse { direction: rtl; }
.deepdive-item.reverse > * { direction: ltr; }
.deepdive-text h3 { font-size: 1.4rem; font-weight: 700; margin-bottom: 12px; }
.deepdive-text p { color: var(--text-secondary); font-size: .95rem; margin-bottom: 16px; }
.deepdive-text ul { list-style: none; }
.deepdive-text li { padding: 4px 0; font-size: .9rem; color: var(--text-secondary); }
.deepdive-text li::before { content: "✅ "; }
.deepdive-img img { border-radius: var(--radius); box-shadow: var(--shadow-lg); border: 1px solid var(--border); }

/* ====== Comparison ====== */
.compare-section { padding: 100px 0; background: var(--bg-section-alt); }
.compare-table { width: 100%; border-collapse: collapse; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.compare-table th { background: var(--primary); color: #fff; padding: 14px 20px; text-align: left; font-size: .9rem; }
.compare-table td { padding: 14px 20px; border-bottom: 1px solid var(--border); background: var(--bg-card); font-size: .9rem; color: var(--text-secondary); }
.compare-table tr:hover td { background: var(--bg-card-hover); }
.compare-table td:last-child { color: var(--success); font-weight: 600; }
.compare-table td:nth-child(2) { color: var(--danger); }

/* ====== Testimonials ====== */
.testimonials-section { padding: 100px 0; }
.testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.testimonial-card { padding: 32px 24px; border-radius: var(--radius); background: var(--bg-card); border: 1px solid var(--border); transition: all var(--transition); }
.testimonial-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.testimonial-stars { font-size: 1rem; margin-bottom: 12px; }
.testimonial-card p { font-size: .9rem; color: var(--text-secondary); font-style: italic; margin-bottom: 16px; line-height: 1.7; }
.testimonial-author strong { display: block; font-size: .9rem; color: var(--text); }
.testimonial-author span { font-size: .8rem; color: var(--text-muted); }

/* ====== Dark Mode Showcase ====== */
.darkmode-section { padding: 100px 0; background: var(--bg-section-alt); }
.darkmode-showcase { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; max-width: 1000px; margin: 0 auto; }
.darkmode-img { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); box-shadow: var(--shadow); }
.darkmode-img img { display: block; width: 100%; }
.darkmode-img span { display: block; text-align: center; padding: 12px; font-size: .85rem; font-weight: 600; color: var(--text-secondary); background: var(--bg-card); }

/* ====== Responsive ====== */
@media (max-width: 1024px) {
    .hero-container { grid-template-columns: 1fr; text-align: center; }
    .hero h1 { font-size: 2.6rem; }
    .hero-desc { margin: 0 auto 32px; }
    .hero-buttons { justify-content: center; }
    .hero-stats { justify-content: center; }
    .hero-image { max-width: 700px; margin: 0 auto; }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .modules-grid { grid-template-columns: repeat(4, 1fr); }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .deepdive-item, .deepdive-item.reverse { grid-template-columns: 1fr; direction: ltr; }
    .testimonial-grid { grid-template-columns: 1fr 1fr; }
}

/* ====== Demo Login Section ====== */
.demo-section { padding: 90px 0; background: var(--bg-section-alt); }
.demo-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; max-width: 960px; margin: 0 auto; }
.demo-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 28px;
    text-align: center;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}
.demo-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--primary-light); }
.demo-card-admin { border-color: var(--primary); border-width: 2px; }
.demo-card-admin::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}
.demo-card-badge {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 20px;
    font-size: .7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .05em;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    margin-bottom: 12px;
}
.demo-card-icon {
    width: 64px; height: 64px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 16px;
    font-size: 1.5rem;
    background: rgba(79,70,229,.08);
    color: var(--primary);
    transition: all var(--transition);
}
.demo-card:hover .demo-card-icon { background: var(--primary); color: #fff; transform: scale(1.1); }
.demo-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px; }
.demo-card p { font-size: .82rem; color: var(--text-secondary); line-height: 1.6; margin-bottom: 18px; }
.demo-cred {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    background: var(--bg-section-alt);
    margin-bottom: 8px;
    font-size: .82rem;
}
.demo-cred span { font-weight: 600; color: var(--text-secondary); font-size: .75rem; text-transform: uppercase; letter-spacing: .04em; }
.demo-cred code { font-family: 'JetBrains Mono', monospace; font-size: .82rem; color: var(--primary); font-weight: 600; background: transparent; padding: 0; }

@media (max-width: 768px) {
    .nav-menu { display: none; position: fixed; top: 72px; left: 0; right: 0; background: var(--bg-card); flex-direction: column; padding: 20px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow-lg); }
    .nav-menu.active { display: flex; }
    .hamburger { display: flex; }
    .hero { padding: 120px 0 60px; }
    .hero h1 { font-size: 2rem; }
    .features-grid { grid-template-columns: 1fr; }
    .modules-grid { grid-template-columns: repeat(3, 1fr); }
    .pricing-card { padding: 32px 24px; }
    .price { font-size: 2.5rem; }
    .contact-info { grid-template-columns: 1fr 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; text-align: center; }
    .footer-social { justify-content: center; }
    .section-header h2 { font-size: 1.8rem; }
    .cta-content h2 { font-size: 1.8rem; }
    .screenshot-tabs { gap: 6px; }
    .tab-btn { padding: 8px 14px; font-size: .78rem; }
    .steps-row { grid-template-columns: 1fr; }
    .testimonial-grid { grid-template-columns: 1fr; }
    .darkmode-showcase { grid-template-columns: 1fr; }
    .compare-table { font-size: .8rem; }
    .compare-table th, .compare-table td { padding: 10px 12px; }
    .demo-cards { grid-template-columns: 1fr; max-width: 400px; }
}

@media (max-width: 480px) {
    .hero h1 { font-size: 1.7rem; }
    .hero-stats { flex-wrap: wrap; gap: 16px; }
    .stat-divider { display: none; }
    .modules-grid { grid-template-columns: repeat(2, 1fr); }
    .btn-lg { padding: 14px 28px; }
    .floating-card { display: none; }
}