:root {
  --primary: #E11D48;
  --primary-hover: #BE123C;
  --primary-light: #FFE4E6;
  --primary-glow: rgba(225, 29, 72, 0.25);
  --secondary: #4F46E5;
  --secondary-hover: #4338CA;
  --secondary-light: #EEF2FF;
  --accent-emerald: #10B981;
  --accent-amber: #F59E0B;
  --dark-bg: #0F172A;
  --dark-surface: #1E293B;
  --dark-border: rgba(255, 255, 255, 0.1);
  --light-bg: #F8FAFC;
  --text-main: #0F172A;
  --text-muted: #64748B;
  --text-light: #94A3B8;
  --card-bg: #FFFFFF;
  --border-subtle: #E2E8F0;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 14px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.12);
  --shadow-glow: 0 10px 30px rgba(225, 29, 72, 0.2);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-family: var(--font-body); color: var(--text-main); background-color: var(--light-bg); }
body { line-height: 1.6; overflow-x: hidden; -webkit-font-smoothing: antialiased; }
h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); color: var(--text-main); font-weight: 700; line-height: 1.25; }
a { text-decoration: none; color: inherit; transition: all 0.2s ease; }
img { max-width: 100%; height: auto; display: block; }

/* Layout */
.container { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; }
.section-header { text-align: center; max-width: 720px; margin: 0 auto 60px; }
.section-tag { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--primary); margin-bottom: 12px; display: inline-block; }
.section-title { font-size: 38px; font-weight: 800; margin-bottom: 16px; color: var(--dark-bg); }
.section-desc { font-size: 17px; color: var(--text-muted); }

/* Header & Navbar */
.header { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; background: rgba(255, 255, 255, 0.92); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid rgba(226, 232, 240, 0.8); transition: all 0.3s ease; }
.header.scrolled { box-shadow: 0 4px 20px rgba(15, 23, 42, 0.06); }
.navbar { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.brand-logo { display: flex; align-items: center; gap: 12px; font-family: var(--font-heading); font-size: 24px; font-weight: 800; color: var(--dark-bg); }
.logo-icon { width: 42px; height: 42px; border-radius: 12px; background: linear-gradient(135deg, var(--primary) 0%, #FB7185 100%); display: flex; align-items: center; justify-content: center; color: white; font-weight: 900; font-size: 22px; box-shadow: var(--shadow-glow); }
.nav-menu { display: flex; align-items: center; gap: 28px; list-style: none; }
.nav-link { font-size: 14.5px; font-weight: 600; color: var(--text-muted); transition: color 0.2s ease; }
.nav-link:hover { color: var(--primary); }
.nav-actions { display: flex; align-items: center; gap: 14px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 22px; border-radius: var(--radius-md); font-family: var(--font-body); font-size: 14.5px; font-weight: 600; cursor: pointer; border: none; transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1); text-align: center; }
.btn-primary { background: linear-gradient(135deg, var(--primary) 0%, #F43F5E 100%); color: white; box-shadow: 0 4px 14px rgba(225, 29, 72, 0.3); }
.btn-primary:hover { background: linear-gradient(135deg, var(--primary-hover) 0%, var(--primary) 100%); box-shadow: 0 8px 22px rgba(225, 29, 72, 0.4); transform: translateY(-2px); }
.btn-secondary { background: white; color: var(--dark-bg); border: 1.5px solid var(--border-subtle); box-shadow: var(--shadow-sm); }
.btn-secondary:hover { border-color: var(--secondary); color: var(--secondary); background: var(--secondary-light); transform: translateY(-2px); }
.btn-lg { padding: 15px 30px; font-size: 16px; border-radius: var(--radius-md); }
.mobile-toggle { display: none; background: none; border: none; font-size: 26px; cursor: pointer; color: var(--dark-bg); }

/* Hero Section */
.hero { padding: 150px 0 90px; background: radial-gradient(100% 80% at 50% 0%, #FFF1F2 0%, #F8FAFC 100%); position: relative; overflow: hidden; }
.hero-glow { position: absolute; top: 10%; left: 50%; transform: translateX(-50%); width: 600px; height: 350px; background: radial-gradient(circle, rgba(225, 29, 72, 0.15) 0%, rgba(79, 70, 229, 0.08) 60%, transparent 80%); filter: blur(60px); pointer-events: none; z-index: 0; }
.hero-content { position: relative; z-index: 1; text-align: center; max-width: 860px; margin: 0 auto; }
.badge-pill { display: inline-flex; align-items: center; gap: 8px; padding: 6px 16px; background: white; border: 1px solid var(--border-subtle); border-radius: var(--radius-full); font-size: 13px; font-weight: 600; color: var(--primary); box-shadow: var(--shadow-sm); margin-bottom: 24px; }
.hero-title { font-size: 52px; font-weight: 800; letter-spacing: -1px; margin-bottom: 20px; color: var(--dark-bg); }
.hero-title span.highlight { background: linear-gradient(135deg, var(--primary) 0%, #FB7185 50%, var(--secondary) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero-subtitle { font-size: 18.5px; color: var(--text-muted); margin-bottom: 36px; line-height: 1.6; }
.hero-cta-group { display: flex; align-items: center; justify-content: center; gap: 16px; flex-wrap: wrap; margin-bottom: 36px; }
.hero-trust { display: flex; align-items: center; justify-content: center; gap: 28px; flex-wrap: wrap; color: var(--text-muted); font-size: 13.5px; font-weight: 500; }
.trust-item { display: flex; align-items: center; gap: 6px; }
.trust-item svg { color: var(--accent-emerald); }

/* App Showcase Mockup */
.hero-mockup-wrapper { margin-top: 50px; position: relative; z-index: 1; }
.app-mockup { background: white; border-radius: 20px; border: 1.5px solid var(--border-subtle); box-shadow: 0 25px 60px -15px rgba(15, 23, 42, 0.18); overflow: hidden; }
.mockup-header { height: 42px; background: #F1F5F9; border-bottom: 1px solid var(--border-subtle); display: flex; align-items: center; padding: 0 16px; gap: 8px; }
.window-dots { display: flex; gap: 6px; }
.dot { width: 11px; height: 11px; border-radius: 50%; }
.dot.red { background: #EF4444; } .dot.yellow { background: #F59E0B; } .dot.green { background: #10B981; }
.mockup-title { font-size: 12px; font-weight: 600; color: var(--text-muted); margin-left: 10px; }
.mockup-inner { padding: 24px; background: #F8FAFC; display: grid; grid-template-columns: 280px 1fr; gap: 20px; min-height: 440px; }
.mockup-left { background: white; border-radius: var(--radius-md); border: 1px solid var(--border-subtle); padding: 16px; display: flex; flex-direction: column; gap: 12px; text-align: left; }
.mockup-right { background: white; border-radius: var(--radius-md); border: 1px solid var(--border-subtle); padding: 16px; }

/* Features Grid */
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 28px; }
.feature-card { background: white; border-radius: var(--radius-lg); padding: 32px; border: 1px solid var(--border-subtle); box-shadow: var(--shadow-sm); transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1); display: flex; flex-direction: column; text-align: left; }
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(225, 29, 72, 0.3); }
.feature-icon-box { width: 54px; height: 54px; border-radius: 14px; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 24px; margin-bottom: 22px; }
.feature-card:nth-child(2) .feature-icon-box { background: var(--secondary-light); color: var(--secondary); }
.feature-card:nth-child(3) .feature-icon-box { background: #ECFDF5; color: var(--accent-emerald); }
.feature-card:nth-child(4) .feature-icon-box { background: #FFFBEB; color: var(--accent-amber); }
.feature-card:nth-child(5) .feature-icon-box { background: #FAF5FF; color: #7C3AED; }
.feature-card:nth-child(6) .feature-icon-box { background: #EFF6FF; color: #2563EB; }
.feature-title { font-size: 20px; font-weight: 700; margin-bottom: 12px; }
.feature-desc { font-size: 15px; color: var(--text-muted); margin-bottom: 20px; flex-grow: 1; }
.feature-points { list-style: none; display: flex; flex-direction: column; gap: 8px; font-size: 13.5px; color: #334155; }
.feature-points li { display: flex; align-items: center; gap: 8px; }
.feature-points li svg { color: var(--accent-emerald); flex-shrink: 0; }

/* Interactive Tabs Section */
.tabs-section { background: #0F172A; color: white; position: relative; overflow: hidden; }
.tabs-section .section-title { color: white; }
.tabs-section .section-desc { color: var(--text-light); }
.tabs-nav { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; margin-bottom: 40px; }
.tab-btn { background: rgba(255, 255, 255, 0.05); border: 1px solid var(--dark-border); color: var(--text-light); padding: 12px 24px; border-radius: var(--radius-full); font-weight: 600; font-size: 14.5px; cursor: pointer; transition: all 0.2s ease; }
.tab-btn.active, .tab-btn:hover { background: var(--primary); color: white; border-color: var(--primary); box-shadow: 0 4px 20px var(--primary-glow); }
.tab-content { display: none; background: var(--dark-surface); border-radius: 20px; border: 1px solid var(--dark-border); padding: 40px; }
.tab-content.active { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; text-align: left; }
.tab-text h3 { color: white; font-size: 28px; margin-bottom: 16px; }
.tab-text p { color: var(--text-light); font-size: 16px; margin-bottom: 24px; }

/* ROI Calculator */
.calc-card { background: white; border-radius: 24px; border: 1px solid var(--border-subtle); box-shadow: var(--shadow-lg); padding: 40px; max-width: 900px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 40px; text-align: left; }
.calc-controls { display: flex; flex-direction: column; gap: 28px; }
.calc-group label { display: flex; justify-content: space-between; font-weight: 600; font-size: 15px; margin-bottom: 8px; }
.calc-group label span { color: var(--primary); font-weight: 700; }
.range-slider { width: 100%; height: 8px; border-radius: 4px; background: #E2E8F0; outline: none; -webkit-appearance: none; }
.range-slider::-webkit-slider-thumb { -webkit-appearance: none; appearance: none; width: 22px; height: 22px; border-radius: 50%; background: var(--primary); cursor: pointer; }
.calc-results { background: #FFF1F2; border: 1px solid #FFE4E6; border-radius: var(--radius-lg); padding: 32px; display: flex; flex-direction: column; justify-content: center; text-align: center; }
.roi-metric { margin-bottom: 24px; }
.roi-val { font-family: var(--font-heading); font-size: 42px; font-weight: 800; color: var(--primary); line-height: 1; margin-bottom: 6px; }
.roi-label { font-size: 14px; font-weight: 600; color: var(--text-muted); }

/* Download Section */
.download-section { background: linear-gradient(180deg, #F8FAFC 0%, #EFF6FF 100%); }
.download-cards-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; max-width: 980px; margin: 0 auto; }
.download-card { background: white; border-radius: 20px; padding: 36px; border: 1.5px solid var(--border-subtle); box-shadow: var(--shadow-md); display: flex; flex-direction: column; position: relative; overflow: hidden; text-align: left; }
.download-card.featured { border-color: var(--primary); box-shadow: 0 10px 30px rgba(225, 29, 72, 0.15); }
.card-ribbon { position: absolute; top: 18px; right: -32px; transform: rotate(45deg); background: var(--primary); color: white; font-size: 11px; font-weight: 800; text-transform: uppercase; padding: 4px 38px; }
.download-icon-header { display: flex; align-items: center; gap: 16px; margin-bottom: 20px; }
.platform-icon { width: 52px; height: 52px; border-radius: 14px; background: #F1F5F9; display: flex; align-items: center; justify-content: center; font-size: 26px; }
.download-title { font-size: 22px; font-weight: 700; }
.download-meta { font-size: 13px; color: var(--text-muted); }
.download-features { list-style: none; margin: 20px 0 28px; display: flex; flex-direction: column; gap: 10px; font-size: 14px; color: #334155; flex-grow: 1; }
.download-features li { display: flex; align-items: center; gap: 8px; }
.download-features li svg { color: var(--accent-emerald); }

/* FAQ Accordion */
.faq-grid { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; text-align: left; }
.faq-item { background: white; border-radius: var(--radius-md); border: 1px solid var(--border-subtle); overflow: hidden; }
.faq-item.active { border-color: var(--primary); box-shadow: var(--shadow-sm); }
.faq-question { padding: 20px 24px; font-size: 16.5px; font-weight: 700; display: flex; justify-content: space-between; align-items: center; cursor: pointer; color: var(--dark-bg); }
.faq-answer { padding: 0 24px 20px; font-size: 15px; color: var(--text-muted); display: none; line-height: 1.6; }
.faq-item.active .faq-answer { display: block; }
.faq-icon { font-size: 20px; transition: transform 0.2s ease; }
.faq-item.active .faq-icon { transform: rotate(45deg); color: var(--primary); }

/* Contact Section & Form */
.contact-section { background: #FFFFFF; position: relative; }
.contact-wrapper { display: grid; grid-template-columns: 1fr 1.25fr; gap: 48px; align-items: flex-start; text-align: left; }
.contact-info-panel { display: flex; flex-direction: column; gap: 24px; }
.contact-card-item { background: var(--light-bg); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 24px; display: flex; gap: 16px; transition: all 0.3s ease; }
.contact-card-item:hover { border-color: var(--primary); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.contact-icon-box { width: 48px; height: 48px; border-radius: 12px; background: white; border: 1px solid var(--border-subtle); display: flex; align-items: center; justify-content: center; font-size: 22px; color: var(--primary); flex-shrink: 0; box-shadow: var(--shadow-sm); }
.contact-details h4 { font-size: 16px; font-weight: 700; margin-bottom: 4px; color: var(--dark-bg); }
.contact-details p { font-size: 13.5px; color: var(--text-muted); line-height: 1.5; }
.contact-details a { color: var(--primary); font-weight: 600; font-size: 15px; }
.contact-details a:hover { color: var(--primary-hover); text-decoration: underline; }

/* Contact Form */
.contact-form-card { background: white; border-radius: 20px; border: 1.5px solid var(--border-subtle); padding: 36px; box-shadow: var(--shadow-lg); }
.form-group { margin-bottom: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-label { display: block; font-size: 13.5px; font-weight: 600; color: #334155; margin-bottom: 6px; }
.form-input, .form-select, .form-textarea { width: 100%; padding: 12px 14px; border-radius: var(--radius-sm); border: 1.5px solid var(--border-subtle); font-family: var(--font-body); font-size: 14.5px; color: var(--text-main); background: #F8FAFC; transition: all 0.2s ease; outline: none; }
.form-input:focus, .form-select:focus, .form-textarea:focus { border-color: var(--primary); background: white; box-shadow: 0 0 0 3px var(--primary-light); }
.form-textarea { resize: vertical; min-height: 110px; }

/* Floating Contact Widget */
.floating-contact-btn { position: fixed; bottom: 24px; right: 24px; z-index: 999; background: #25D366; color: white; padding: 12px 20px; border-radius: var(--radius-full); display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 14px; box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4); transition: all 0.3s ease; }
.floating-contact-btn:hover { background: #20BA5A; transform: translateY(-3px) scale(1.02); color: white; }

/* Footer */
.footer { background: #0B1120; color: #94A3B8; padding: 80px 0 40px; border-top: 1px solid var(--dark-border); text-align: left; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; margin-bottom: 60px; }
.footer-brand h4 { color: white; font-size: 22px; margin-bottom: 12px; }
.footer-brand p { font-size: 14.5px; line-height: 1.6; max-width: 320px; }
.footer-col h5 { color: white; font-size: 16px; margin-bottom: 20px; }
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 12px; font-size: 14px; }
.footer-links a:hover { color: white; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.08); padding-top: 30px; display: flex; justify-content: space-between; align-items: center; font-size: 13.5px; }

/* Responsive */
@media (max-width: 992px) {
  .contact-wrapper { grid-template-columns: 1fr; }
  .hero-title { font-size: 40px; }
  .tab-content.active { grid-template-columns: 1fr; }
  .calc-card { grid-template-columns: 1fr; }
  .download-cards-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .mockup-inner { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .nav-menu, .nav-actions { display: none; }
  .mobile-toggle { display: block; }
  .hero { padding: 120px 0 60px; }
  .hero-title { font-size: 32px; }
  .hero-subtitle { font-size: 16px; }
  .section { padding: 60px 0; }
  .section-title { font-size: 28px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
}