/* ========================================
   CSS Variables & Reset
   ======================================== */
:root {
  --color-primary: #f6821f;
  --color-primary-dark: #e0740f;
  --color-primary-light: #ffa64d;
  --color-bg: #ffffff;
  --color-bg-alt: #f8f9fa;
  --color-bg-dark: #0d1117;
  --color-text: #1a1a2e;
  --color-text-secondary: #555770;
  --color-text-light: #8888a0;
  --color-border: #e2e4e8;
  --color-accent-blue: #003682;
  --color-accent-gradient: linear-gradient(135deg, #f6821f, #fbad41);
  --font-sans: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --radius: 8px;
  --radius-lg: 16px;
  --transition: 0.3s ease;
}

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 70px;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ========================================
   Navigation
   ======================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition);
}

.navbar.scrolled {
  box-shadow: var(--shadow-sm);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
}

.logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  background: var(--color-accent-gradient);
  color: #fff;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 4px;
}

.nav-link {
  text-decoration: none;
  color: var(--color-text-secondary);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 6px;
  transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
  background: rgba(246,130,31,0.08);
}

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

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ========================================
   Hero
   ======================================== */
.hero {
  padding: 140px 0 80px;
  background: linear-gradient(180deg, #fff 0%, #f0f4ff 100%);
  overflow: hidden;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero-badge {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(246,130,31,0.1);
  color: var(--color-primary);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 20px;
}

.hero-title {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -1px;
  margin-bottom: 20px;
}

.text-gradient {
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 16px;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  gap: 12px;
}

/* Globe Animation */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.globe-container {
  width: 340px;
  height: 340px;
  position: relative;
}

.globe {
  width: 100%;
  height: 100%;
  position: relative;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #e8ecf4, #c5cddf);
  box-shadow: inset -20px -20px 60px rgba(0,0,0,0.08),
              0 0 60px rgba(0,54,130,0.08);
}

.globe-ring {
  position: absolute;
  border: 1.5px solid rgba(0,54,130,0.15);
  border-radius: 50%;
}

.ring-1 {
  top: 10%; left: 10%; width: 80%; height: 80%;
  transform: rotateX(60deg);
  animation: spin 20s linear infinite;
}

.ring-2 {
  top: 5%; left: 5%; width: 90%; height: 90%;
  transform: rotateX(60deg) rotateZ(30deg);
  animation: spin 25s linear infinite reverse;
}

.ring-3 {
  top: 15%; left: 15%; width: 70%; height: 70%;
  transform: rotateX(60deg) rotateZ(-20deg);
  animation: spin 18s linear infinite;
}

.globe-dot {
  position: absolute;
  width: 8px;
  height: 8px;
  background: var(--color-primary);
  border-radius: 50%;
  box-shadow: 0 0 10px rgba(246,130,31,0.5);
  animation: pulse 2s ease-in-out infinite;
}

.dot-1 { top: 25%; left: 60%; animation-delay: 0s; }
.dot-2 { top: 45%; left: 30%; animation-delay: 0.4s; }
.dot-3 { top: 65%; left: 55%; animation-delay: 0.8s; }
.dot-4 { top: 35%; left: 75%; animation-delay: 1.2s; }
.dot-5 { top: 55%; left: 45%; animation-delay: 1.6s; }

@keyframes spin {
  from { transform: rotateX(60deg) rotateZ(0deg); }
  to { transform: rotateX(60deg) rotateZ(360deg); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.8; }
  50% { transform: scale(1.5); opacity: 1; }
}

/* ========================================
   Buttons
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--color-accent-gradient);
  color: #fff;
  border-color: transparent;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(246,130,31,0.35);
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-block {
  width: 100%;
}

/* ========================================
   Section Common
   ======================================== */
.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.section-title {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}

.section-description {
  font-size: 16px;
  color: var(--color-text-secondary);
  max-width: 500px;
  margin: 0 auto;
}

/* ========================================
   Features
   ======================================== */
.features {
  padding: 96px 0;
  background: var(--color-bg);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  padding: 32px 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  transition: var(--transition);
  opacity: 0;
  transform: translateY(24px);
}

.feature-card.visible {
  opacity: 1;
  transform: translateY(0);
}

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

.feature-card.visible:hover {
  transform: translateY(-4px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-icon svg {
  width: 24px;
  height: 24px;
}

.icon-speed { background: #fff3e0; color: #f6821f; }
.icon-security { background: #e3f2fd; color: #003682; }
.icon-deploy { background: #e8f5e9; color: #2e7d32; }
.icon-functions { background: #fce4ec; color: #c62828; }
.icon-analytics { background: #f3e5f5; color: #7b1fa2; }
.icon-scale { background: #e0f7fa; color: #00838f; }

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ========================================
   Stats
   ======================================== */
.stats {
  padding: 96px 0;
  background: var(--color-bg-dark);
  color: #fff;
}

.stats .section-tag {
  color: var(--color-primary-light);
}

.stats .section-title {
  color: #fff;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-card {
  text-align: center;
  padding: 32px 16px;
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
}

.stat-number {
  font-size: 48px;
  font-weight: 800;
  display: inline;
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-unit {
  display: inline;
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary-light);
}

.stat-label {
  margin-top: 8px;
  font-size: 14px;
  color: rgba(255,255,255,0.6);
}

/* ========================================
   Pricing
   ======================================== */
.pricing {
  padding: 96px 0;
  background: var(--color-bg-alt);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}

.pricing-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  position: relative;
  transition: var(--transition);
}

.pricing-card:hover {
  box-shadow: var(--shadow-lg);
}

.pricing-featured {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent-gradient);
  color: #fff;
  padding: 4px 16px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
}

.pricing-header {
  text-align: center;
  margin-bottom: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.pricing-header h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}

.pricing-amount .price {
  font-size: 40px;
  font-weight: 800;
}

.pricing-amount .period {
  font-size: 14px;
  color: var(--color-text-light);
}

.pricing-features {
  list-style: none;
  margin-bottom: 28px;
}

.pricing-features li {
  padding: 8px 0;
  font-size: 14px;
  color: var(--color-text-secondary);
  position: relative;
  padding-left: 24px;
}

.pricing-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  width: 14px;
  height: 7px;
  border-left: 2px solid var(--color-primary);
  border-bottom: 2px solid var(--color-primary);
  transform: rotate(-45deg);
}

/* ========================================
   Contact
   ======================================== */
.contact {
  padding: 96px 0;
  background: var(--color-bg);
}

.contact-form-wrapper {
  max-width: 560px;
  margin: 0 auto;
}

.contact-form {
  background: var(--color-bg-alt);
  padding: 40px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--color-text);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 14px;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(246,130,31,0.12);
}

.form-result {
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  display: none;
}

.form-result.show {
  display: block;
}

.form-result.success {
  background: #e8f5e9;
  color: #2e7d32;
  border: 1px solid #a5d6a7;
}

.form-result.error {
  background: #fce4ec;
  color: #c62828;
  border: 1px solid #ef9a9a;
}

/* ========================================
   Footer
   ======================================== */
.footer {
  padding: 48px 0 24px;
  background: var(--color-bg-dark);
  color: rgba(255,255,255,0.7);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-brand .logo-icon {
  display: inline-flex;
  width: 30px;
  height: 30px;
  font-size: 11px;
  vertical-align: middle;
  margin-right: 6px;
}

.footer-tagline {
  font-size: 14px;
  font-weight: 400;
  color: rgba(255,255,255,0.5);
}

.footer-links h4 {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: rgba(255,255,255,0.4);
  margin-bottom: 16px;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  font-size: 14px;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--color-primary-light);
}

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  font-size: 13px;
  color: rgba(255,255,255,0.35);
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 960px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-title {
    font-size: 36px;
  }

  .hero-description {
    margin: 0 auto 32px;
  }

  .hero-actions {
    justify-content: center;
  }

  .globe-container {
    width: 260px;
    height: 260px;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 640px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    padding: 16px 24px;
    box-shadow: var(--shadow-md);
  }

  .nav-menu.open {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .hero-title {
    font-size: 30px;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .section-title {
    font-size: 28px;
  }

  .stat-number {
    font-size: 36px;
  }

  .contact-form {
    padding: 28px 20px;
  }
}