:root {
    --primary: #10b981;
    --primary-dark: #059669;
    --primary-light: #d1fae5;
    --accent: #f97316;
    --text: #1f2937;
    --text-light: #6b7280;
    --bg: #ffffff;
    --bg-alt: #f9fafb;
    --border: #e5e7eb;
    --shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
    --radius: 12px;
    --radius-sm: 8px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Inter', sans-serif; color: var(--text); background: var(--bg); line-height: 1.6; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 12px 24px; font-size: 15px; font-weight: 600; border-radius: var(--radius-sm); text-decoration: none; cursor: pointer; border: none; transition: all 0.2s; }
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); }
.btn-secondary { background: var(--primary-light); color: var(--primary-dark); }
.btn-outline { background: transparent; border: 2px solid var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-large { padding: 16px 32px; font-size: 17px; }
.btn-block { width: 100%; }
.navbar { position: sticky; top: 0; background: rgba(255,255,255,0.95); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); z-index: 100; padding: 16px 0; }
.nav-container { display: flex; justify-content: space-between; align-items: center; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; font-size: 22px; font-weight: 700; color: var(--text); }
.logo-icon { width: 36px; height: 36px; }
.nav-links { display: flex; align-items: center; gap: 24px; }
.nav-links a { text-decoration: none; color: var(--text-light); font-weight: 500; }
.nav-links a:hover { color: var(--primary); }
.hero { padding: 80px 0; background: linear-gradient(180deg, var(--bg-alt) 0%, var(--bg) 100%); }
.hero-content { text-align: center; max-width: 700px; margin: 0 auto 60px; }
.hero h1 { font-size: 48px; font-weight: 700; line-height: 1.2; margin-bottom: 24px; }
.highlight { color: var(--primary); }
.hero-subtitle { font-size: 20px; color: var(--text-light); margin-bottom: 32px; }
.hero-cta { display: flex; gap: 16px; justify-content: center; margin-bottom: 16px; }
.hero-note { font-size: 14px; color: var(--text-light); }
.demo-card { background: white; border-radius: var(--radius); box-shadow: var(--shadow-lg); padding: 32px; display: grid; grid-template-columns: 1fr auto 1fr; gap: 24px; align-items: center; }
.demo-label { display: inline-block; font-size: 12px; font-weight: 600; text-transform: uppercase; color: var(--primary); background: var(--primary-light); padding: 4px 12px; border-radius: 20px; margin-bottom: 12px; }
.demo-input, .demo-output { text-align: left; }
.demo-input p, .demo-output p { font-size: 14px; margin-bottom: 8px; }
.demo-arrow { font-size: 32px; color: var(--primary); }
.features, .faq { padding: 100px 0; }
.pricing { padding: 100px 0; background: var(--bg-alt); }
.section-title { text-align: center; font-size: 36px; margin-bottom: 48px; }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.feature-card { padding: 32px; border-radius: var(--radius); border: 1px solid var(--border); transition: all 0.2s; }
.feature-card:hover { border-color: var(--primary); box-shadow: var(--shadow); }
.feature-icon { font-size: 40px; margin-bottom: 16px; }
.feature-card h3 { font-size: 20px; margin-bottom: 8px; }
.feature-card p { color: var(--text-light); }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.pricing-card { background: white; border-radius: var(--radius); padding: 40px 32px; text-align: center; border: 2px solid var(--border); position: relative; }
.pricing-card.featured { border-color: var(--primary); transform: scale(1.05); }
.pricing-badge { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--accent); color: white; font-size: 12px; font-weight: 600; padding: 4px 16px; border-radius: 20px; }
.pricing-header h3 { font-size: 24px; margin-bottom: 8px; }
.price { font-size: 48px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.price span { font-size: 18px; color: var(--text-light); }
.pricing-features { list-style: none; text-align: left; margin-bottom: 32px; }
.pricing-features li { padding: 12px 0; border-bottom: 1px solid var(--border); }
.faq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.faq-item { padding: 24px; border-radius: var(--radius); background: var(--bg-alt); }
.faq-item h3 { font-size: 18px; margin-bottom: 12px; }
.faq-item p { color: var(--text-light); }
.cta { padding: 80px 0; background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); text-align: center; color: white; }
.cta h2 { font-size: 36px; margin-bottom: 16px; }
.cta p { font-size: 18px; opacity: 0.9; margin-bottom: 32px; }
.cta .btn-primary { background: white; color: var(--primary); }
.footer { padding: 60px 0 24px; background: var(--text); color: white; }
.footer-content { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-logo { width: 40px; height: 40px; margin-bottom: 16px; }
.footer-brand p { color: rgba(255,255,255,0.7); }
.footer-links h4 { font-size: 14px; text-transform: uppercase; margin-bottom: 16px; opacity: 0.7; }
.footer-links a { display: block; color: rgba(255,255,255,0.8); text-decoration: none; margin-bottom: 12px; }
.footer-links a:hover { color: var(--primary); }
.footer-bottom { padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.1); text-align: center; color: rgba(255,255,255,0.5); font-size: 14px; }
.generator-section { padding: 60px 0; }
.generator-header { text-align: center; margin-bottom: 48px; }
.generator-header h1 { font-size: 36px; margin-bottom: 12px; }
.generator-header p { color: var(--text-light); }
.generator-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.generator-form-card, .generator-result-card { background: white; border-radius: var(--radius); padding: 32px; border: 1px solid var(--border); }
.generator-form-card h2, .generator-result-card h2 { font-size: 20px; margin-bottom: 24px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-weight: 600; margin-bottom: 8px; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 12px 16px; font-size: 15px; border: 2px solid var(--border); border-radius: var(--radius-sm); font-family: inherit; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--primary); }
.result-box { background: var(--bg-alt); border-radius: var(--radius-sm); padding: 24px; margin-bottom: 16px; line-height: 1.8; }
.result-actions { display: flex; gap: 12px; }
.result-placeholder { text-align: center; padding: 60px 24px; background: var(--bg-alt); border-radius: var(--radius-sm); }
.placeholder-icon { font-size: 48px; margin-bottom: 16px; }
.result-placeholder p { color: var(--text-light); }
.generator-cta { margin-top: 32px; text-align: center; padding: 16px; background: var(--primary-light); border-radius: var(--radius-sm); }
.generator-cta a { color: var(--primary-dark); font-weight: 600; }
.auth-section { padding: 80px 0; min-height: 80vh; display: flex; align-items: center; background: var(--bg-alt); }
.auth-card { background: white; border-radius: var(--radius); padding: 48px; max-width: 440px; margin: 0 auto; box-shadow: var(--shadow-lg); }
.auth-card h1 { font-size: 28px; margin-bottom: 8px; }
.auth-card > p { color: var(--text-light); margin-bottom: 32px; }
.auth-form { margin-bottom: 24px; }
.auth-terms { font-size: 13px; color: var(--text-light); text-align: center; margin-bottom: 24px; }
.auth-footer { text-align: center; padding-top: 24px; border-top: 1px solid var(--border); }
.auth-footer a { color: var(--primary); font-weight: 600; }
.alert { padding: 12px 16px; border-radius: var(--radius-sm); margin-bottom: 24px; }
.alert-error { background: #fef2f2; color: #dc2626; border: 1px solid #fecaca; }
.dashboard-section { padding: 60px 0; }
.dashboard-header { margin-bottom: 32px; }
.dashboard-header h1 { font-size: 32px; }
.dashboard-header p { color: var(--text-light); }
.dashboard-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 32px; }
.stat-card { background: white; border-radius: var(--radius); padding: 24px; text-align: center; border: 1px solid var(--border); }
.stat-value { font-size: 36px; font-weight: 700; color: var(--primary); }
.stat-label { color: var(--text-light); font-size: 14px; }
.dashboard-actions { display: flex; gap: 16px; margin-bottom: 48px; }
.dashboard-history h2 { font-size: 24px; margin-bottom: 24px; }
.history-list { display: flex; flex-direction: column; gap: 16px; }
.history-item { background: white; border-radius: var(--radius); padding: 20px; border: 1px solid var(--border); }
.history-header { display: flex; justify-content: space-between; margin-bottom: 8px; }
.history-date { font-size: 13px; color: var(--text-light); }
.history-category { font-size: 13px; color: var(--primary); margin-bottom: 8px; }
.history-description { color: var(--text-light); }
.history-empty { text-align: center; padding: 48px; background: var(--bg-alt); border-radius: var(--radius); }
@media (max-width: 768px) {
    .hero h1 { font-size: 32px; }
    .hero-cta { flex-direction: column; }
    .demo-card { grid-template-columns: 1fr; }
    .demo-arrow { transform: rotate(90deg); text-align: center; }
    .features-grid, .pricing-grid, .faq-grid { grid-template-columns: 1fr; }
    .pricing-card.featured { transform: none; }
    .footer-content { grid-template-columns: 1fr; }
    .generator-grid { grid-template-columns: 1fr; }
    .nav-links { display: none; }
    .dashboard-stats { grid-template-columns: 1fr; }
}