/* ===== CSS Variables & Design System ===== */
:root {
  --primary: #6C3CE1;
  --primary-light: #8B5CF6;
  --primary-dark: #5B21B6;
  --secondary: #0EA5E9;
  --secondary-light: #38BDF8;
  --accent: #F59E0B;
  --dark: #0F172A;
  --dark-alt: #1E293B;
  --gray-900: #1E293B;
  --gray-800: #334155;
  --gray-700: #475569;
  --gray-600: #64748B;
  --gray-400: #94A3B8;
  --gray-300: #CBD5E1;
  --gray-200: #E2E8F0;
  --gray-100: #F1F5F9;
  --white: #FFFFFF;
  --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  --gradient-dark: linear-gradient(135deg, var(--dark) 0%, var(--dark-alt) 100%);
  --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.12);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.15);
  --shadow-glow: 0 0 30px rgba(108,60,225,0.3);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --font-heading: 'Inter', sans-serif;
  --font-body: 'Inter', sans-serif;
  --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(--gray-800);
  background: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
h1, h2, h3, h4, h5 { font-family: var(--font-heading); font-weight: 700; line-height: 1.2; color: var(--dark); }
h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.5rem); }
p { margin-bottom: 1rem; }

/* ===== Utility ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; }
.section-dark { background: var(--gradient-dark); color: var(--gray-200); }
.section-dark h2, .section-dark h3 { color: var(--white); }
.section-light { background: var(--gray-100); }
.section-header { text-align: center; margin-bottom: 60px; }
.section-header p { color: var(--gray-600); font-size: 1.15rem; max-width: 600px; margin: 16px auto 0; }
.badge { display: inline-block; background: rgba(108,60,225,0.1); color: var(--primary); padding: 6px 16px; border-radius: 50px; font-size: 0.85rem; font-weight: 600; letter-spacing: 0.5px; text-transform: uppercase; margin-bottom: 12px; }
.section-dark .badge { background: rgba(255,255,255,0.1); color: var(--secondary-light); }
.text-gradient { background: var(--gradient-primary); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px; border-radius: 50px; font-weight: 600; font-size: 1rem;
  border: none; cursor: pointer; transition: var(--transition); position: relative; overflow: hidden;
}
.btn-primary {
  background: var(--gradient-primary); color: var(--white);
  box-shadow: 0 4px 15px rgba(108,60,225,0.4);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 25px rgba(108,60,225,0.5); }
.btn-outline {
  background: transparent; color: var(--primary); border: 2px solid var(--primary);
}
.btn-outline:hover { background: var(--primary); color: var(--white); }
.btn-white { background: var(--white); color: var(--primary); box-shadow: var(--shadow-md); }
.btn-white:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }

/* ===== Navigation ===== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 16px 0; transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(255,255,255,0.92); backdrop-filter: blur(20px);
  box-shadow: 0 1px 20px rgba(0,0,0,0.08); padding: 10px 0;
}
.navbar .container { display: flex; align-items: center; justify-content: space-between; }
.logo { font-size: 1.5rem; font-weight: 800; display: flex; align-items: center; gap: 8px; }
.logo .icon { width: 36px; height: 36px; background: var(--gradient-primary); border-radius: 10px; display: flex; align-items: center; justify-content: center; color: white; font-size: 1.1rem; }
.logo-text { color: var(--white); transition: var(--transition); }
.navbar.scrolled .logo-text { color: var(--dark); }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { color: rgba(255,255,255,0.85); font-weight: 500; position: relative; }
.nav-links a::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px; background: var(--secondary-light); transition: var(--transition); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.navbar.scrolled .nav-links a { color: var(--gray-700); }
.navbar.scrolled .nav-links a:hover { color: var(--primary); }
.nav-cta { padding: 10px 24px !important; background: var(--white); color: var(--primary) !important; border-radius: 50px; font-weight: 600 !important; }
.nav-cta::after { display: none !important; }
.navbar.scrolled .nav-cta { background: var(--gradient-primary); color: var(--white) !important; }
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; z-index: 1001; }
.hamburger span { width: 28px; height: 3px; background: var(--white); border-radius: 2px; transition: var(--transition); }
.navbar.scrolled .hamburger span { background: var(--dark); }
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 6px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -6px); }

/* ===== Hero ===== */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  background: var(--gradient-dark); position: relative; overflow: hidden; padding-top: 80px;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 30% 50%, rgba(108,60,225,0.2) 0%, transparent 60%),
              radial-gradient(circle at 70% 30%, rgba(14,165,233,0.15) 0%, transparent 50%);
}
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; position: relative; z-index: 1; }
.hero-content h1 { color: var(--white); margin-bottom: 20px; }
.hero-content p { color: var(--gray-400); font-size: 1.2rem; margin-bottom: 32px; max-width: 520px; }
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-visual { display: flex; justify-content: center; align-items: center; }
.hero-card {
  background: var(--gradient-glass); backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.1); border-radius: var(--radius-lg);
  padding: 40px; width: 100%; max-width: 460px;
  box-shadow: var(--shadow-glow);
}
.hero-card .stat-row { display: flex; justify-content: space-between; margin-bottom: 24px; }
.hero-card .stat { text-align: center; }
.hero-card .stat-value { font-size: 2rem; font-weight: 800; color: var(--white); }
.hero-card .stat-label { font-size: 0.85rem; color: var(--gray-400); }
.hero-card .bar-chart { display: flex; align-items: flex-end; gap: 8px; height: 120px; margin-top: 20px; }
.hero-card .bar {
  flex: 1; border-radius: 6px 6px 0 0; background: var(--gradient-primary); opacity: 0.7;
  animation: barGrow 1.5s ease-out forwards;
}
.hero-card .bar:nth-child(1) { height: 40%; animation-delay: 0.1s; }
.hero-card .bar:nth-child(2) { height: 65%; animation-delay: 0.2s; }
.hero-card .bar:nth-child(3) { height: 45%; animation-delay: 0.3s; }
.hero-card .bar:nth-child(4) { height: 80%; animation-delay: 0.4s; }
.hero-card .bar:nth-child(5) { height: 55%; animation-delay: 0.5s; }
.hero-card .bar:nth-child(6) { height: 90%; animation-delay: 0.6s; }
.hero-card .bar:nth-child(7) { height: 70%; animation-delay: 0.7s; }
@keyframes barGrow { from { height: 0; } }

/* Floating particles */
.particles { position: absolute; inset: 0; overflow: hidden; z-index: 0; }
.particle {
  position: absolute; width: 4px; height: 4px; background: rgba(108,60,225,0.5);
  border-radius: 50%; animation: float linear infinite;
}
@keyframes float {
  0% { transform: translateY(100vh) scale(0); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(-10vh) scale(1); opacity: 0; }
}

/* ===== Features Grid ===== */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.feature-card {
  background: var(--white); border-radius: var(--radius-md); padding: 36px;
  border: 1px solid var(--gray-200); transition: var(--transition); position: relative; overflow: hidden;
}
.feature-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--gradient-primary); transform: scaleX(0); transition: var(--transition); transform-origin: left;
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.feature-card:hover::before { transform: scaleX(1); }
.feature-icon {
  width: 56px; height: 56px; border-radius: var(--radius-sm);
  background: rgba(108,60,225,0.08); display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; margin-bottom: 20px; color: var(--primary);
}
.feature-card h3 { margin-bottom: 12px; }
.feature-card p { color: var(--gray-600); margin-bottom: 0; }

/* ===== How It Works ===== */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; position: relative; }
.steps::before {
  content: ''; position: absolute; top: 44px; left: 15%; right: 15%; height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  z-index: 0;
}
.step { text-align: center; position: relative; z-index: 1; }
.step-number {
  width: 88px; height: 88px; border-radius: 50%;
  background: var(--gradient-primary); color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-size: 2rem; font-weight: 800; margin: 0 auto 24px;
  box-shadow: 0 4px 20px rgba(108,60,225,0.3);
}
.step h3 { margin-bottom: 8px; color: var(--white); }
.step p { color: var(--gray-400); }

/* ===== Stats ===== */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.stat-card { text-align: center; padding: 30px; }
.stat-card .number { font-size: 3rem; font-weight: 800; background: var(--gradient-primary); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.stat-card .label { color: var(--gray-600); margin-top: 8px; font-weight: 500; }

/* ===== Testimonials ===== */
.testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.testimonial-card {
  background: rgba(255,255,255,0.05); backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.1); border-radius: var(--radius-md); padding: 36px;
  transition: var(--transition);
}
.testimonial-card:hover { transform: translateY(-4px); border-color: rgba(108,60,225,0.3); }
.testimonial-stars { color: var(--accent); font-size: 1.1rem; margin-bottom: 16px; }
.testimonial-text { color: var(--gray-300); font-style: italic; margin-bottom: 20px; line-height: 1.8; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.testimonial-avatar {
  width: 44px; height: 44px; border-radius: 50%; background: var(--gradient-primary);
  display: flex; align-items: center; justify-content: center; color: var(--white); font-weight: 700;
}
.testimonial-name { color: var(--white); font-weight: 600; }
.testimonial-role { color: var(--gray-400); font-size: 0.85rem; }

/* ===== CTA Section ===== */
.cta-section {
  background: var(--gradient-primary); padding: 80px 0; text-align: center; position: relative; overflow: hidden;
}
.cta-section::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 50%, rgba(255,255,255,0.1) 0%, transparent 70%);
}
.cta-section h2 { color: var(--white); margin-bottom: 16px; position: relative; }
.cta-section p { color: rgba(255,255,255,0.85); font-size: 1.15rem; margin-bottom: 32px; position: relative; }
.cta-section .btn { position: relative; }

/* ===== About Page ===== */
.page-hero {
  padding: 160px 0 80px; background: var(--gradient-dark); text-align: center; position: relative; overflow: hidden;
}
.page-hero::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 30%, rgba(108,60,225,0.2) 0%, transparent 60%);
}
.page-hero h1 { color: var(--white); margin-bottom: 16px; position: relative; }
.page-hero p { color: var(--gray-400); font-size: 1.2rem; max-width: 600px; margin: 0 auto; position: relative; }

.about-content { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-text h2 { margin-bottom: 20px; }
.about-text p { color: var(--gray-600); }
.about-image {
  background: var(--gradient-glass); border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg); padding: 40px; text-align: center;
  min-height: 350px; display: flex; flex-direction: column; align-items: center; justify-content: center;
}
.about-image .about-icon { font-size: 5rem; margin-bottom: 20px; }

.values-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.value-card {
  text-align: center; padding: 40px 30px; background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08); border-radius: var(--radius-md);
  transition: var(--transition);
}
.value-card:hover { transform: translateY(-4px); border-color: rgba(108,60,225,0.3); }
.value-icon { font-size: 2.5rem; margin-bottom: 16px; }
.value-card h3 { margin-bottom: 10px; }
.value-card p { color: var(--gray-400); margin: 0; }

.timeline { max-width: 700px; margin: 0 auto; position: relative; padding-left: 40px; }
.timeline::before { content: ''; position: absolute; left: 12px; top: 0; bottom: 0; width: 2px; background: var(--gradient-primary); }
.timeline-item { margin-bottom: 40px; position: relative; }
.timeline-item::before {
  content: ''; position: absolute; left: -34px; top: 4px; width: 16px; height: 16px;
  border-radius: 50%; background: var(--gradient-primary); border: 3px solid var(--white);
}
.timeline-item h3 { color: var(--primary); margin-bottom: 4px; }
.timeline-item p { color: var(--gray-600); margin: 0; }

/* ===== Contact Page ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.contact-info-cards { display: flex; flex-direction: column; gap: 20px; }
.contact-info-card {
  display: flex; align-items: flex-start; gap: 20px; padding: 24px;
  background: var(--white); border: 1px solid var(--gray-200);
  border-radius: var(--radius-md); transition: var(--transition);
}
.contact-info-card:hover { box-shadow: var(--shadow-md); transform: translateX(4px); }
.contact-info-icon {
  width: 50px; height: 50px; min-width: 50px; border-radius: var(--radius-sm);
  background: rgba(108,60,225,0.08); display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem; color: var(--primary);
}
.contact-info-card h3 { font-size: 1.05rem; margin-bottom: 4px; }
.contact-info-card p { color: var(--gray-600); margin: 0; font-size: 0.95rem; }
.contact-form {
  background: var(--white); border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg); padding: 40px; box-shadow: var(--shadow-md);
}
.contact-form h3 { margin-bottom: 24px; font-size: 1.4rem; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-weight: 600; margin-bottom: 6px; color: var(--gray-800); font-size: 0.95rem; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 14px 18px; border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm); font-family: var(--font-body); font-size: 1rem;
  transition: var(--transition); background: var(--gray-100);
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(108,60,225,0.1);
  background: var(--white);
}
.form-group textarea { min-height: 140px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-submit { width: 100%; padding: 16px; font-size: 1.05rem; }
.form-success {
  display: none; text-align: center; padding: 40px; color: #10B981;
}
.form-success.show { display: block; }
.form-success .check { font-size: 3rem; margin-bottom: 12px; }

/* ===== Footer ===== */
.footer { background: var(--dark); padding: 60px 0 30px; color: var(--gray-400); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p { color: var(--gray-400); max-width: 320px; line-height: 1.7; }
.footer h4 { color: var(--white); margin-bottom: 20px; font-size: 1.05rem; }
.footer-links a { display: block; color: var(--gray-400); padding: 6px 0; transition: var(--transition); }
.footer-links a:hover { color: var(--secondary-light); transform: translateX(4px); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; font-size: 0.9rem; }
.footer-social { display: flex; gap: 12px; }
.footer-social a {
  width: 38px; height: 38px; border-radius: 50%; background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center; color: var(--gray-400);
  transition: var(--transition);
}
.footer-social a:hover { background: var(--primary); color: var(--white); transform: translateY(-2px); }

/* ===== Scroll Animations ===== */
.fade-up { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }
.fade-up:nth-child(2) { transition-delay: 0.1s; }
.fade-up:nth-child(3) { transition-delay: 0.2s; }
.fade-up:nth-child(4) { transition-delay: 0.3s; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero-content p { margin: 0 auto 32px; }
  .hero-buttons { justify-content: center; }
  .hero-visual { margin-top: 40px; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; }
  .about-content { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed; inset: 0; background: rgba(15,23,42,0.98); backdrop-filter: blur(20px);
    flex-direction: column; justify-content: center; gap: 24px;
    transform: translateX(100%); transition: var(--transition);
  }
  .nav-links.open { transform: translateX(0); }
  .nav-links a { color: var(--white) !important; font-size: 1.3rem; }
  .hamburger { display: flex; }
  .features-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; gap: 30px; }
  .steps::before { left: 44px; top: 0; bottom: 0; width: 2px; height: 100%; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
  .section { padding: 70px 0; }
  .hero { padding-top: 60px; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .hero-card { padding: 24px; }
  .container { padding: 0 16px; }
}