/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #4F46E5;
  --primary-dark: #3730A3;
  --primary-light: #818CF8;
  --accent: #10B981;
  --accent-dark: #059669;
  --dark: #1E1B4B;
  --gray-900: #111827;
  --gray-700: #374151;
  --gray-500: #6B7280;
  --gray-300: #D1D5DB;
  --gray-100: #F3F4F6;
  --white: #FFFFFF;
  --gradient: linear-gradient(135deg, var(--primary) 0%, #7C3AED 100%);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 14px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
  --radius: 12px;
  --radius-lg: 20px;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--gray-700);
  line-height: 1.6;
  background: var(--white);
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; }
ul { list-style: none; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4 { color: var(--dark); line-height: 1.2; font-weight: 700; }
h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
h3 { font-size: 1.3rem; }

.section-subtitle {
  color: var(--primary);
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.section-title {
  margin-bottom: 16px;
}

.section-desc {
  color: var(--gray-500);
  font-size: 1.1rem;
  max-width: 640px;
  margin: 0 auto 48px;
}

/* ===== 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: all 0.3s ease;
  font-family: inherit;
}

.btn-primary {
  background: var(--gradient);
  color: var(--white);
  box-shadow: 0 4px 20px rgba(79, 70, 229, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 30px rgba(79, 70, 229, 0.5);
}

.btn-secondary {
  background: var(--white);
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-secondary:hover {
  background: var(--primary);
  color: var(--white);
}

.btn-accent {
  background: var(--accent);
  color: var(--white);
  box-shadow: 0 4px 20px rgba(16, 185, 129, 0.35);
}

.btn-accent:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
}

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: all 0.3s ease;
  background: transparent;
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-sm);
  padding: 10px 0;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.5px;
}

.logo span { color: var(--accent); }

.navbar.scrolled .logo { 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;
  font-size: 0.95rem;
  transition: color 0.3s;
}

.nav-links a:hover { color: var(--white); }

.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) !important;
  color: var(--primary) !important;
  border-radius: 50px;
  font-weight: 600 !important;
  font-size: 0.9rem;
  transition: all 0.3s;
}

.nav-cta:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); }
.navbar.scrolled .nav-cta { background: var(--gradient) !important; color: var(--white) !important; }

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.mobile-toggle span {
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: all 0.3s;
  border-radius: 2px;
}

.navbar.scrolled .mobile-toggle span { background: var(--dark); }

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  background: var(--gradient);
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(16,185,129,0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.hero .container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding-top: 80px;
}

.hero-content { color: var(--white); }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(10px);
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 24px;
  color: var(--white);
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero h1 {
  color: var(--white);
  margin-bottom: 20px;
  font-weight: 800;
}

.hero h1 em {
  font-style: normal;
  position: relative;
  display: inline-block;
}

.hero h1 em::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 0;
  right: 0;
  height: 8px;
  background: var(--accent);
  opacity: 0.4;
  border-radius: 4px;
}

.hero-desc {
  font-size: 1.15rem;
  line-height: 1.7;
  opacity: 0.9;
  margin-bottom: 32px;
  max-width: 520px;
}

.hero-ctas {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.hero-stats {
  display: flex;
  gap: 40px;
}

.hero-stat {
  text-align: center;
}

.hero-stat .number {
  font-size: 2rem;
  font-weight: 800;
  display: block;
}

.hero-stat .label {
  font-size: 0.8rem;
  opacity: 0.7;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Hero Form Card */
.hero-form-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-xl);
  position: relative;
}

.hero-form-card::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(135deg, var(--accent), var(--primary-light));
  border-radius: calc(var(--radius-lg) + 2px);
  z-index: -1;
}

.form-header {
  text-align: center;
  margin-bottom: 28px;
}

.form-header h3 {
  font-size: 1.4rem;
  margin-bottom: 6px;
}

.form-header p {
  color: var(--gray-500);
  font-size: 0.9rem;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--gray-700);
  margin-bottom: 6px;
}

.form-group input {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--gray-300);
  border-radius: 10px;
  font-size: 0.95rem;
  font-family: inherit;
  transition: all 0.3s;
  background: var(--gray-100);
}

.form-group input:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--white);
  box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.1);
}

.form-group input.error {
  border-color: #EF4444;
  background: #FEF2F2;
}

.form-group .error-msg {
  color: #EF4444;
  font-size: 0.8rem;
  margin-top: 4px;
  display: none;
}

.form-group input.error + .error-msg { display: block; }

.form-submit {
  width: 100%;
  padding: 14px;
  margin-top: 8px;
  font-size: 1.05rem;
}

.form-footer {
  text-align: center;
  margin-top: 16px;
  font-size: 0.8rem;
  color: var(--gray-500);
}

.form-footer svg {
  width: 14px;
  height: 14px;
  vertical-align: middle;
  margin-right: 4px;
}

.form-success {
  display: none;
  text-align: center;
  padding: 40px 20px;
}

.form-success .checkmark {
  width: 64px;
  height: 64px;
  background: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 28px;
  color: var(--white);
}

.form-success h3 { margin-bottom: 8px; }
.form-success p { color: var(--gray-500); }

/* ===== FEATURES ===== */
.features {
  padding: 100px 0;
  background: var(--white);
}

.features .section-header {
  text-align: center;
  margin-bottom: 64px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  padding: 36px;
  border-radius: var(--radius);
  background: var(--white);
  border: 1px solid var(--gray-100);
  transition: all 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
}

.feature-icon.purple { background: rgba(79, 70, 229, 0.1); color: var(--primary); }
.feature-icon.green { background: rgba(16, 185, 129, 0.1); color: var(--accent); }
.feature-icon.blue { background: rgba(59, 130, 246, 0.1); color: #3B82F6; }
.feature-icon.orange { background: rgba(249, 115, 22, 0.1); color: #F97316; }
.feature-icon.pink { background: rgba(236, 72, 153, 0.1); color: #EC4899; }
.feature-icon.teal { background: rgba(20, 184, 166, 0.1); color: #14B8A6; }

.feature-card h3 { margin-bottom: 10px; }
.feature-card p { color: var(--gray-500); font-size: 0.95rem; line-height: 1.6; }

/* ===== HOW IT WORKS ===== */
.how-it-works {
  padding: 100px 0;
  background: var(--gray-100);
}

.how-it-works .section-header {
  text-align: center;
  margin-bottom: 64px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
}

.steps::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 12%;
  right: 12%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-light), var(--accent));
  z-index: 0;
}

.step {
  text-align: center;
  position: relative;
  z-index: 1;
}

.step-number {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--gradient);
  color: var(--white);
  font-size: 1.5rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  box-shadow: 0 4px 20px rgba(79, 70, 229, 0.3);
}

.step h3 { margin-bottom: 8px; font-size: 1.1rem; }
.step p { color: var(--gray-500); font-size: 0.9rem; }

/* ===== BENEFITS ===== */
.benefits {
  padding: 100px 0;
  background: var(--white);
}

.benefits .section-header {
  text-align: center;
  margin-bottom: 64px;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.benefit-item {
  display: flex;
  gap: 20px;
  padding: 28px;
  border-radius: var(--radius);
  background: var(--gray-100);
  transition: all 0.3s;
}

.benefit-item:hover {
  background: var(--white);
  box-shadow: var(--shadow-md);
}

.benefit-check {
  width: 40px;
  height: 40px;
  min-width: 40px;
  border-radius: 10px;
  background: rgba(16, 185, 129, 0.1);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
}

.benefit-item h4 { margin-bottom: 4px; font-size: 1.05rem; }
.benefit-item p { color: var(--gray-500); font-size: 0.9rem; }

/* ===== TESTIMONIALS / SOCIAL PROOF ===== */
.social-proof {
  padding: 80px 0;
  background: var(--dark);
  color: var(--white);
}

.social-proof .section-header { text-align: center; margin-bottom: 48px; }
.social-proof .section-subtitle { color: var(--accent); }
.social-proof .section-title { color: var(--white); }
.social-proof .section-desc { color: rgba(255,255,255,0.6); }

.logos-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
  opacity: 0.6;
}

.logos-bar span {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 60px;
  text-align: center;
}

.stat-item .stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent);
  display: block;
}

.stat-item .stat-label {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
  margin-top: 4px;
}

/* ===== CTA SECTION ===== */
.cta-section {
  padding: 100px 0;
  background: var(--gradient);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-section .container { position: relative; z-index: 2; }

.cta-section h2 {
  color: var(--white);
  margin-bottom: 16px;
}

.cta-section p {
  color: rgba(255,255,255,0.85);
  font-size: 1.15rem;
  max-width: 600px;
  margin: 0 auto 32px;
}

.cta-section .btn {
  background: var(--white);
  color: var(--primary);
  font-size: 1.1rem;
  padding: 16px 40px;
}

.cta-section .btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.2);
}

/* ===== FOOTER ===== */
.footer {
  padding: 48px 0 24px;
  background: var(--gray-900);
  color: rgba(255,255,255,0.6);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer .logo { color: var(--white); font-size: 1.3rem; }
.footer-links { display: flex; gap: 24px; }
.footer-links a { color: rgba(255,255,255,0.6); font-size: 0.9rem; transition: color 0.3s; }
.footer-links a:hover { color: var(--white); }

.footer-bottom {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.1);
  text-align: center;
  font-size: 0.85rem;
}

/* ===== ANIMATIONS ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .steps::before { display: none; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .hero .container {
    grid-template-columns: 1fr;
    padding-top: 100px;
    gap: 40px;
  }

  .hero-content { text-align: center; }
  .hero-desc { margin: 0 auto 32px; }
  .hero-ctas { justify-content: center; }
  .hero-stats { justify-content: center; }

  .nav-links { display: none; }
  .mobile-toggle { display: flex; }

  .nav-links.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    padding: 24px;
    box-shadow: var(--shadow-lg);
    border-radius: 0 0 var(--radius) var(--radius);
  }

  .nav-links.active a { color: var(--gray-700); }

  .features-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; gap: 24px; }
  .benefits-grid { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .logos-bar { gap: 24px; }
  .footer-content { flex-direction: column; text-align: center; }
}