/* ============================================
   ORIENTAL POINT LIMITED — Design System
   ============================================ */

:root {
  --bg-deep: #0a0e1a;
  --bg-mid: #0f1529;
  --gradient-start: #7B9FFF;
  --gradient-mid: #9B8AFF;
  --gradient-end: #A78BFA;
  --gradient-soft: linear-gradient(135deg, rgba(123, 159, 255, 0.15) 0%, rgba(167, 139, 250, 0.1) 100%);
  --gradient-primary: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
  --text-primary: #f0f2f8;
  --text-secondary: rgba(240, 242, 248, 0.65);
  --text-muted: rgba(240, 242, 248, 0.4);
  --glass-bg: rgba(255, 255, 255, 0.04);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-hover: rgba(255, 255, 255, 0.07);
  --glass-blur: 20px;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --shadow-glow: 0 0 60px rgba(123, 159, 255, 0.15);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --nav-height: 72px;
  --container-max: 1200px;
  --section-gap: 140px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-deep);
  overflow-x: hidden;
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

address {
  font-style: normal;
  line-height: 1.8;
  color: var(--text-secondary);
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 32px;
}

/* ---- Background Effects ---- */

#particles {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.5;
}

.glow-1 {
  width: 600px;
  height: 600px;
  background: rgba(123, 159, 255, 0.12);
  top: -200px;
  left: -100px;
  animation: glowDrift 20s ease-in-out infinite;
}

.glow-2 {
  width: 500px;
  height: 500px;
  background: rgba(167, 139, 250, 0.1);
  top: 40%;
  right: -150px;
  animation: glowDrift 25s ease-in-out infinite reverse;
}

.glow-3 {
  width: 400px;
  height: 400px;
  background: rgba(123, 159, 255, 0.08);
  bottom: 10%;
  left: 30%;
  animation: glowDrift 18s ease-in-out infinite 5s;
}

@keyframes glowDrift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(40px, -30px) scale(1.05); }
  66% { transform: translate(-30px, 20px) scale(0.95); }
}

/* ---- Glass Morphism ---- */

.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
}

/* ---- Buttons ---- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: 0 4px 24px rgba(123, 159, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 32px rgba(123, 159, 255, 0.4);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover {
  color: var(--text-primary);
}

.btn-glass {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
}

.btn-glass:hover {
  background: var(--glass-hover);
  border-color: rgba(255, 255, 255, 0.15);
}

.btn-lg {
  padding: 14px 28px;
  font-size: 15px;
  border-radius: 10px;
}

.btn-block {
  width: 100%;
}

/* ---- Navigation ---- */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(10, 14, 26, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.04em;
}

.logo-icon {
  width: 32px;
  height: 32px;
}

.nav-links {
  display: flex;
  gap: 36px;
}

.nav-links a {
  font-size: 14px;
  font-weight: 400;
  color: var(--text-secondary);
  transition: color var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--gradient-primary);
  transition: width var(--transition);
}

.nav-links a:hover {
  color: var(--text-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;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ---- Hero ---- */

.hero {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 80px 0 100px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px 6px 12px;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 28px;
  animation: fadeInUp 0.8s ease both;
}

.badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gradient-primary);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  animation: fadeInUp 0.8s ease 0.1s both;
}

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

.hero-desc {
  font-size: 18px;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 520px;
  margin-bottom: 36px;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
  animation: fadeInUp 0.8s ease 0.3s both;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  animation: fadeInUp 0.8s ease 0.4s both;
}

.stat-value {
  display: block;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.stat-label {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 2px;
}

.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--glass-border);
}

/* ---- Hero Visual / Robot ---- */

.hero-visual {
  display: flex;
  justify-content: center;
  animation: fadeIn 1.2s ease 0.3s both;
}

.robot-scene {
  position: relative;
  width: 100%;
  max-width: 420px;
  perspective: 800px;
}

.robot-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(123, 159, 255, 0.2) 0%, transparent 70%);
  border-radius: 50%;
  animation: robotGlow 4s ease-in-out infinite;
}

@keyframes robotGlow {
  0%, 100% { opacity: 0.6; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 1; transform: translate(-50%, -50%) scale(1.1); }
}

.robot-3d {
  width: 100%;
  height: auto;
  position: relative;
  z-index: 2;
  animation: robotFloat 6s ease-in-out infinite;
  filter: drop-shadow(0 20px 40px rgba(123, 159, 255, 0.15));
}

@keyframes robotFloat {
  0%, 100% { transform: translateY(0) rotateY(-5deg); }
  50% { transform: translateY(-16px) rotateY(5deg); }
}

.robot-head {
  transform-origin: 140px 122px;
  animation: headTilt 8s ease-in-out infinite;
}

@keyframes headTilt {
  0%, 100% { transform: rotate(0deg); }
  25% { transform: rotate(-2deg); }
  75% { transform: rotate(2deg); }
}

.robot-eye {
  animation: eyeBlink 4s ease-in-out infinite;
}

@keyframes eyeBlink {
  0%, 92%, 100% { transform: scaleY(1); }
  95% { transform: scaleY(0.1); }
}

.robot-arm-left {
  transform-origin: 85px 170px;
  animation: armSwingLeft 5s ease-in-out infinite;
}

.robot-arm-right {
  transform-origin: 225px 170px;
  animation: armSwingRight 5s ease-in-out infinite 0.5s;
}

@keyframes armSwingLeft {
  0%, 100% { transform: rotate(0deg); }
  50% { transform: rotate(8deg); }
}

@keyframes armSwingRight {
  0%, 100% { transform: rotate(0deg); }
  50% { transform: rotate(-8deg); }
}

.robot-pulse {
  animation: robotPulse 2s ease-in-out infinite;
}

@keyframes robotPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.float-icon {
  animation: floatIcon 5s ease-in-out infinite;
}

.float-1 { animation-delay: 0s; }
.float-2 { animation-delay: 1.5s; }
.float-3 { animation-delay: 3s; }

@keyframes floatIcon {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.hero-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 500;
  z-index: 3;
  animation: cardFloat 5s ease-in-out infinite;
}

.hero-card-1 {
  top: 15%;
  left: -10%;
  animation-delay: 0s;
}

.hero-card-2 {
  bottom: 20%;
  right: -8%;
  animation-delay: 2s;
}

@keyframes cardFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ---- Section Common ---- */

section {
  position: relative;
  z-index: 1;
}

.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 64px;
}

.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gradient-start);
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 16px;
}

.section-header p {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ---- Features ---- */

.features {
  padding: var(--section-gap) 0;
}

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

.feature-card {
  padding: 36px 32px;
  transition: var(--transition);
  cursor: default;
}

.feature-card:hover {
  background: var(--glass-hover);
  border-color: rgba(123, 159, 255, 0.2);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: var(--gradient-soft);
  border: 1px solid rgba(123, 159, 255, 0.15);
  margin-bottom: 24px;
  color: var(--gradient-start);
}

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

.feature-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ---- FAQ ---- */

.faq {
  padding: var(--section-gap) 0;
}

.faq-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  overflow: hidden;
  transition: var(--transition);
}

.faq-item[open] {
  border-color: rgba(123, 159, 255, 0.2);
  background: var(--glass-hover);
}

.faq-item summary {
  padding: 22px 28px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: color var(--transition);
  user-select: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '+';
  font-size: 22px;
  font-weight: 300;
  color: var(--text-muted);
  transition: transform var(--transition);
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
  color: var(--gradient-start);
}

.faq-item summary:hover {
  color: var(--gradient-start);
}

.faq-item p {
  padding: 0 28px 22px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ---- Footer ---- */

.footer {
  position: relative;
  z-index: 1;
  padding: 80px 0 40px;
  border-top: 1px solid var(--glass-border);
  background: rgba(10, 14, 26, 0.5);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  margin-bottom: 60px;
}

.footer-tagline {
  margin-top: 16px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: var(--text-secondary);
  padding: 6px 0;
  transition: color var(--transition);
}

.footer-col a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 32px;
  border-top: 1px solid var(--glass-border);
}

.footer-bottom p {
  font-size: 13px;
  color: var(--text-muted);
}

.footer-legal {
  display: flex;
  gap: 24px;
}

.footer-legal a {
  font-size: 13px;
  color: var(--text-muted);
  transition: color var(--transition);
}

.footer-legal a:hover {
  color: var(--text-secondary);
}

/* ---- Scroll Reveal ---- */

.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Responsive ---- */

@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 48px;
  }

  .hero-desc {
    margin-left: auto;
    margin-right: auto;
  }

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

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

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

@media (max-width: 768px) {
  :root {
    --section-gap: 100px;
  }

  .container {
    padding: 0 20px;
  }

  .nav-links,
  .nav-actions {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-links.mobile-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    padding: 24px 32px 32px;
    background: rgba(10, 14, 26, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    gap: 20px;
  }

  .nav-actions.mobile-open {
    display: flex;
    position: absolute;
    top: calc(var(--nav-height) + 200px);
    left: 32px;
    right: 32px;
  }

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

  .hero-stats {
    flex-direction: column;
    gap: 16px;
  }

  .stat-divider {
    width: 40px;
    height: 1px;
  }

  .hero-card-1 {
    left: 0;
  }

  .hero-card-2 {
    right: 0;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2.2rem;
  }

  .hero-cta {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-lg {
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}