/* ========================================
   COREIIX.COM — Design System
   ======================================== */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

/* --- CSS Custom Properties --- */
:root {
  --primary: #6C5CE7;
  --primary-light: #a29bfe;
  --primary-dark: #5341d6;
  --secondary: #00D2D3;
  --secondary-light: #55efc4;
  --secondary-dark: #00b4b5;
  --accent: #FF6B6B;
  --accent-light: #ff9f9f;
  --bg: #FAFBFF;
  --bg-alt: #F0F2FF;
  --surface: #FFFFFF;
  --surface-glass: rgba(255,255,255,0.72);
  --text: #2D3436;
  --text-muted: #636E72;
  --text-light: #b2bec3;
  --border: #E8ECF4;
  --shadow-sm: 0 2px 8px rgba(108,92,231,0.06);
  --shadow-md: 0 8px 32px rgba(108,92,231,0.10);
  --shadow-lg: 0 16px 48px rgba(108,92,231,0.14);
  --shadow-glow: 0 0 40px rgba(108,92,231,0.18);
  --gradient: linear-gradient(135deg, #6C5CE7, #00D2D3);
  --gradient-hero: linear-gradient(135deg, #6C5CE7 0%, #a29bfe 40%, #00D2D3 100%);
  --gradient-card: linear-gradient(145deg, rgba(108,92,231,0.05), rgba(0,210,211,0.05));
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --font-heading: 'Inter', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
  --nav-height: 72px;
  --max-width: 1200px;
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
ul, ol { list-style: none; }
h1,h2,h3,h4,h5,h6 { font-family: var(--font-heading); font-weight: 700; line-height: 1.2; color: var(--text); }
h1 { font-size: clamp(2.4rem, 5vw, 3.8rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); letter-spacing: -0.02em; }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); }
h4 { font-size: 1.2rem; }
p { color: var(--text-muted); font-size: 1.05rem; }

/* --- Layout --- */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; }
.section-header { text-align: center; max-width: 680px; margin: 0 auto 60px; }
.section-header .badge { display: inline-block; background: var(--gradient-card); border: 1px solid var(--border); padding: 6px 18px; border-radius: 100px; font-size: 0.82rem; font-weight: 600; color: var(--primary); margin-bottom: 16px; text-transform: uppercase; letter-spacing: 0.08em; }
.section-header h2 { margin-bottom: 16px; }
.section-header p { font-size: 1.12rem; }

/* --- Navbar --- */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--nav-height);
  display: flex; align-items: center;
  padding: 0 32px;
  background: rgba(250,251,255,0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: var(--transition);
}
.navbar.scrolled { background: rgba(255,255,255,0.95); border-bottom-color: var(--border); box-shadow: var(--shadow-sm); }
.navbar .container { display: flex; align-items: center; justify-content: space-between; width: 100%; }
.nav-logo { display: flex; align-items: center; gap: 10px; }
.nav-logo img { height: 36px; width: auto; }
.nav-logo span { font-family: var(--font-heading); font-weight: 800; font-size: 1.4rem; background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { font-size: 0.95rem; font-weight: 500; color: var(--text); position: relative; }
.nav-links a::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px; background: var(--gradient); border-radius: 2px; transition: var(--transition); }
.nav-links a:hover { color: var(--primary); }
.nav-links a:hover::after { width: 100%; }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: var(--transition); }

/* --- Buttons --- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 28px; border-radius: var(--radius-sm); font-family: var(--font-body);
  font-weight: 600; font-size: 0.95rem; cursor: pointer; border: none;
  transition: var(--transition); white-space: nowrap;
}
.btn-primary { background: var(--gradient); color: #fff; box-shadow: 0 4px 16px rgba(108,92,231,0.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(108,92,231,0.4); color: #fff; }
.btn-secondary { background: var(--surface); color: var(--primary); border: 1.5px solid var(--border); }
.btn-secondary:hover { border-color: var(--primary); background: var(--bg-alt); color: var(--primary); transform: translateY(-2px); }
.btn-ghost { background: transparent; color: var(--primary); padding: 12px 16px; }
.btn-ghost:hover { background: var(--bg-alt); }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; border-radius: var(--radius-md); }

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
  padding-top: var(--nav-height);
  background: var(--bg);
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0; overflow: hidden;
}
.hero-bg .blob {
  position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.4;
  animation: blobFloat 8s ease-in-out infinite;
}
.hero-bg .blob-1 { width: 500px; height: 500px; background: var(--primary-light); top: -10%; right: -5%; animation-delay: 0s; }
.hero-bg .blob-2 { width: 400px; height: 400px; background: var(--secondary); bottom: -10%; left: -5%; animation-delay: 2s; }
.hero-bg .blob-3 { width: 300px; height: 300px; background: var(--accent-light); top: 40%; left: 30%; animation-delay: 4s; }
@keyframes blobFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -20px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}
.hero-content {
  position: relative; z-index: 1; text-align: center;
  max-width: 800px; margin: 0 auto; padding: 60px 24px;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--surface-glass); backdrop-filter: blur(10px);
  border: 1px solid var(--border); padding: 8px 20px;
  border-radius: 100px; font-size: 0.85rem; font-weight: 500;
  color: var(--primary); margin-bottom: 28px;
}
.hero-badge .dot { width: 8px; height: 8px; background: var(--secondary); border-radius: 50%; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }
.hero h1 { margin-bottom: 24px; }
.hero h1 .gradient-text { background: var(--gradient-hero); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero p { font-size: 1.2rem; max-width: 580px; margin: 0 auto 40px; }
.hero-actions { display: flex; align-items: center; justify-content: center; gap: 16px; flex-wrap: wrap; }
.hero-stats {
  display: flex; justify-content: center; gap: 48px;
  margin-top: 64px; padding-top: 40px;
  border-top: 1px solid var(--border);
}
.hero-stat { text-align: center; }
.hero-stat .number { font-family: var(--font-heading); font-size: 2rem; font-weight: 800; color: var(--text); }
.hero-stat .label { font-size: 0.85rem; color: var(--text-muted); margin-top: 4px; }

/* --- Feature Cards / Glass Cards --- */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
  position: relative; overflow: hidden;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--primary-light); }
.card .card-icon {
  width: 56px; height: 56px; border-radius: var(--radius-md);
  background: var(--gradient-card); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; margin-bottom: 20px;
}
.card h3 { margin-bottom: 10px; font-size: 1.15rem; }
.card p { font-size: 0.95rem; }
.card-glass {
  background: var(--surface-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

/* --- App Module Grid --- */
.app-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; }
.app-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
}
.app-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--primary-light); }
.app-card .app-icon { font-size: 2rem; margin-bottom: 12px; }
.app-card h4 { font-size: 0.95rem; margin-bottom: 4px; }
.app-card p { font-size: 0.8rem; color: var(--text-light); }

/* --- Category Tabs --- */
.tab-nav { display: flex; justify-content: center; flex-wrap: wrap; gap: 8px; margin-bottom: 40px; }
.tab-btn {
  padding: 10px 22px; border-radius: 100px; border: 1px solid var(--border);
  background: var(--surface); font-family: var(--font-body);
  font-size: 0.9rem; font-weight: 500; color: var(--text-muted);
  cursor: pointer; transition: var(--transition);
}
.tab-btn:hover { border-color: var(--primary-light); color: var(--primary); }
.tab-btn.active { background: var(--gradient); color: #fff; border-color: transparent; }

/* --- Pricing --- */
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 28px; max-width: 900px; margin: 0 auto; }
.pricing-card {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px 36px;
  position: relative; overflow: hidden;
  transition: var(--transition);
}
.pricing-card.featured { border-color: var(--primary); box-shadow: var(--shadow-glow); }
.pricing-card.featured::before {
  content: 'Most Popular'; position: absolute; top: 20px; right: -30px;
  background: var(--gradient); color: #fff; font-size: 0.75rem; font-weight: 600;
  padding: 4px 40px; transform: rotate(45deg);
}
.pricing-card .plan-name { font-size: 1.1rem; font-weight: 600; color: var(--text-muted); margin-bottom: 8px; }
.pricing-card .plan-price { font-family: var(--font-heading); font-size: 3rem; font-weight: 800; margin-bottom: 8px; }
.pricing-card .plan-price span { font-size: 1rem; font-weight: 400; color: var(--text-muted); }
.pricing-card .plan-desc { font-size: 0.95rem; margin-bottom: 28px; padding-bottom: 28px; border-bottom: 1px solid var(--border); }
.pricing-card .plan-features { margin-bottom: 32px; }
.pricing-card .plan-features li { padding: 8px 0; font-size: 0.95rem; display: flex; align-items: center; gap: 10px; }
.pricing-card .plan-features li::before { content: '✓'; color: var(--secondary); font-weight: 700; }

/* --- Testimonials --- */
.testimonial-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  position: relative;
}
.testimonial-card .quote { font-size: 1.1rem; line-height: 1.8; color: var(--text); font-style: italic; margin-bottom: 20px; }
.testimonial-card .author { display: flex; align-items: center; gap: 12px; }
.testimonial-card .author-avatar { width: 44px; height: 44px; border-radius: 50%; background: var(--gradient); display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 700; }
.testimonial-card .author-info .name { font-weight: 600; font-size: 0.95rem; }
.testimonial-card .author-info .role { font-size: 0.82rem; color: var(--text-muted); }

/* --- Contact Form --- */
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.9rem; font-weight: 500; margin-bottom: 6px; color: var(--text); }
.form-input {
  width: 100%; padding: 14px 18px; border: 1.5px solid var(--border);
  border-radius: var(--radius-sm); font-family: var(--font-body);
  font-size: 0.95rem; transition: var(--transition);
  background: var(--surface); color: var(--text);
}
.form-input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 4px rgba(108,92,231,0.1); }
textarea.form-input { min-height: 140px; resize: vertical; }

/* --- Footer --- */
.footer {
  background: var(--text);
  color: rgba(255,255,255,0.7);
  padding: 80px 0 32px;
}
.footer-grid { display: grid; grid-template-columns: 2fr repeat(3, 1fr); gap: 48px; margin-bottom: 48px; }
.footer-brand p { font-size: 0.9rem; margin-top: 16px; max-width: 280px; color: rgba(255,255,255,0.5); }
.footer-col h4 { color: #fff; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 20px; }
.footer-col a { display: block; font-size: 0.9rem; color: rgba(255,255,255,0.6); padding: 4px 0; transition: var(--transition); }
.footer-col a:hover { color: var(--secondary); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 28px; display: flex; justify-content: space-between; align-items: center; font-size: 0.85rem; }
.footer-social { display: flex; gap: 16px; }
.footer-social a { width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,0.08); display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.6); transition: var(--transition); }
.footer-social a:hover { background: var(--primary); color: #fff; }

/* --- Scroll Animations --- */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-left { opacity: 0; transform: translateX(-40px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal-left.visible { opacity: 1; transform: translateX(0); }
.reveal-right { opacity: 0; transform: translateX(40px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal-right.visible { opacity: 1; transform: translateX(0); }

/* --- Value Props (alternating layout) --- */
.value-section { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; padding: 60px 0; }
.value-section.reverse { direction: rtl; }
.value-section.reverse > * { direction: ltr; }
.value-visual {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  aspect-ratio: 4/3;
  display: flex; align-items: center; justify-content: center;
  font-size: 4rem; overflow: hidden;
}
.value-content .badge { display: inline-block; background: var(--gradient-card); border: 1px solid var(--border); padding: 4px 14px; border-radius: 100px; font-size: 0.78rem; font-weight: 600; color: var(--primary); margin-bottom: 14px; }
.value-content h3 { font-size: 1.6rem; margin-bottom: 14px; }
.value-content p { margin-bottom: 20px; }

/* --- Stats Bar --- */
.stats-bar {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 48px; margin: 0 auto;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px;
  text-align: center;
}
.stat-item .stat-number { font-family: var(--font-heading); font-size: 2.4rem; font-weight: 800; background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.stat-item .stat-label { font-size: 0.88rem; color: var(--text-muted); margin-top: 4px; }

/* --- CTA Section --- */
.cta-section {
  background: var(--gradient);
  border-radius: var(--radius-xl);
  padding: 80px 48px;
  text-align: center; color: #fff; position: relative; overflow: hidden;
}
.cta-section h2 { color: #fff; margin-bottom: 16px; }
.cta-section p { color: rgba(255,255,255,0.85); font-size: 1.15rem; max-width: 540px; margin: 0 auto 32px; }
.cta-section .btn-primary { background: #fff; color: var(--primary); box-shadow: 0 4px 16px rgba(0,0,0,0.15); }
.cta-section .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.2); }

/* --- FAQ Accordion --- */
.faq-list { max-width: 700px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-question { width: 100%; padding: 20px 0; background: none; border: none; font-family: var(--font-body); font-size: 1.05rem; font-weight: 600; color: var(--text); cursor: pointer; display: flex; justify-content: space-between; align-items: center; text-align: left; transition: var(--transition); }
.faq-question:hover { color: var(--primary); }
.faq-question .icon { font-size: 1.2rem; transition: var(--transition); }
.faq-item.open .faq-question .icon { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.faq-answer p { padding: 0 0 20px; font-size: 0.95rem; }

/* --- Utilities --- */
.text-center { text-align: center; }
.text-gradient { background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.mt-20 { margin-top: 20px; } .mt-40 { margin-top: 40px; } .mt-60 { margin-top: 60px; }
.mb-20 { margin-bottom: 20px; } .mb-40 { margin-bottom: 40px; }
.flex-center { display: flex; align-items: center; justify-content: center; }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .value-section { grid-template-columns: 1fr; gap: 32px; }
  .value-section.reverse { direction: ltr; }
}
@media (max-width: 768px) {
  .nav-links { display: none; position: fixed; top: var(--nav-height); left: 0; right: 0; background: var(--surface); flex-direction: column; padding: 24px; gap: 16px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow-md); }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }
  .hero-stats { flex-direction: column; gap: 24px; }
  .stats-bar { grid-template-columns: 1fr 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
  .section { padding: 60px 0; }
  .hero-content { padding: 40px 16px; }
}
@media (max-width: 480px) {
  .stats-bar { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; }
}

/* --- Docs Layout --- */
.docs-layout { display: flex; gap: 40px; align-items: flex-start; }
.docs-sidebar {
  flex: 0 0 280px;
  position: sticky; top: calc(var(--nav-height) + 40px);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
}
.docs-sidebar h4 { margin-bottom: 16px; font-size: 1rem; color: var(--text); text-transform: uppercase; letter-spacing: 0.05em; }
.docs-nav { display: flex; flex-direction: column; gap: 8px; }
.docs-nav a { display: block; padding: 8px 12px; border-radius: var(--radius-sm); color: var(--text-muted); font-size: 0.95rem; transition: var(--transition); }
.docs-nav a:hover { background: var(--bg-alt); color: var(--primary); }
.docs-nav a.active { background: var(--gradient-card); color: var(--primary); font-weight: 600; border-left: 3px solid var(--primary); }
.docs-main { flex: 1; min-width: 0; }
@media (max-width: 900px) {
  .docs-layout { flex-direction: column; }
  .docs-sidebar { position: static; flex: none; width: 100%; margin-bottom: 32px; }
}