/* ===== Around A.I - Global Styles ===== */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@300;400;500;700;900&family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  --primary: #2563EB;
  --primary-dark: #1D4ED8;
  --primary-light: #DBEAFE;
  --accent: #06B6D4;
  --accent-dark: #0891B2;
  --dark: #0F172A;
  --dark-secondary: #1E293B;
  --gray-700: #334155;
  --gray-500: #64748B;
  --gray-300: #CBD5E1;
  --gray-100: #F1F5F9;
  --white: #FFFFFF;
  --gradient-primary: linear-gradient(135deg, #2563EB 0%, #06B6D4 100%);
  --gradient-dark: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 20px 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;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: 'Noto Sans KR', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--dark);
  background: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
  word-break: keep-all;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

img {
  max-width: 100%;
  display: block;
}

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

/* ===== Header / Navigation ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  transition: var(--transition);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--dark);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 800;
  font-size: 0.9rem;
  font-family: 'Inter', sans-serif;
}

.logo-svg {
  flex-shrink: 0;
}

.logo-img {
  height: 36px;
  width: auto;
}

.logo-img-footer {
  filter: brightness(0) invert(1);
  height: 32px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--gray-700);
  position: relative;
  padding: 4px 0;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-cta {
  padding: 10px 24px !important;
  background: var(--gradient-primary);
  color: white !important;
  border-radius: 8px;
  font-weight: 600 !important;
  font-size: 0.9rem !important;
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.4);
}

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

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

/* ===== Hero Section ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 72px;
  background: linear-gradient(160deg, #F8FAFF 0%, #EEF4FF 30%, #E0F2FE 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(37, 99, 235, 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(6, 182, 212, 0.06) 0%, transparent 70%);
  border-radius: 50%;
}

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

.hero-content {
  animation: fadeInUp 0.8s ease-out;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--white);
  border: 1px solid var(--primary-light);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--primary);
  margin-bottom: 24px;
}

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

.hero h1 {
  font-size: 3rem;
  font-weight: 900;
  line-height: 1.3;
  color: var(--dark);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.hero h1 span {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.05rem;
  color: var(--gray-500);
  margin-bottom: 32px;
  line-height: 1.75;
  max-width: 480px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 99, 235, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--dark);
  border: 2px solid var(--gray-300);
}

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

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-illustration {
  width: 100%;
  max-width: 520px;
  aspect-ratio: 1;
  background: var(--gradient-primary);
  border-radius: 30px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-xl);
  overflow: hidden;
}

.hero-illustration::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-illustration-inner {
  text-align: center;
  color: white;
  z-index: 1;
  padding: 40px;
}

.hero-illustration-inner .icon-large {
  font-size: 5rem;
  margin-bottom: 20px;
  display: block;
}

.hero-illustration-inner h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.hero-illustration-inner p {
  font-size: 1rem;
  opacity: 0.85;
  color: white;
}

/* Floating elements */
.float-card {
  position: absolute;
  background: white;
  border-radius: var(--radius);
  padding: 16px 20px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 12px;
  animation: float 6s ease-in-out infinite;
  z-index: 2;
}

.float-card:nth-child(1) {
  top: 10%;
  right: -20px;
  animation-delay: 0s;
}

.float-card:nth-child(2) {
  bottom: 15%;
  left: -20px;
  animation-delay: 2s;
}

.float-card-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.float-card-text {
  font-size: 0.85rem;
}

.float-card-text strong {
  display: block;
  font-weight: 600;
  color: var(--dark);
}

.float-card-text span {
  color: var(--gray-500);
  font-size: 0.8rem;
}

/* Hero Illustration V2 */
.hero-illustration-v2 {
  width: 100%;
  max-width: 520px;
}

.hero-svg {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 20px 40px rgba(0,0,0,0.15));
}

/* ===== Section Common ===== */
.section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-label {
  display: inline-block;
  padding: 6px 16px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.section-header p {
  font-size: 1.05rem;
  color: var(--gray-500);
  max-width: 720px;
  margin: 0 auto;
  word-break: keep-all;
}

/* ===== Services / Features ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.feature-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 24px;
}

.feature-icon.blue { background: var(--primary-light); }
.feature-icon.cyan { background: #CFFAFE; }
.feature-icon.purple { background: #EDE9FE; }
.feature-icon.green { background: #D1FAE5; }
.feature-icon.orange { background: #FEF3C7; }
.feature-icon.pink { background: #FCE7F3; }

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--gray-500);
  line-height: 1.7;
  word-break: keep-all;
}

/* ===== About Section ===== */
.about-section {
  background: var(--gray-100);
}

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

.about-content h2 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 16px;
  line-height: 1.3;
}

.about-content p {
  font-size: 1.05rem;
  color: var(--gray-500);
  margin-bottom: 16px;
  line-height: 1.8;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.stat-item {
  text-align: center;
  padding: 24px 16px;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
  font-family: 'Inter', sans-serif;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--gray-500);
  margin-top: 4px;
}

.about-visual {
  display: flex;
  justify-content: center;
}

.about-image-box {
  width: 100%;
  max-width: 480px;
  aspect-ratio: 4/3;
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: white;
  padding: 40px;
  text-align: center;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.about-image-box::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M20 0L40 20L20 40L0 20z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.about-image-box * { position: relative; z-index: 1; }

.about-image-box .icon-xl { font-size: 4rem; margin-bottom: 16px; }
.about-image-box h3 { font-size: 1.4rem; font-weight: 700; margin-bottom: 8px; }
.about-image-box p { font-size: 0.95rem; opacity: 0.85; }

.about-ai-box {
  padding: 0;
  aspect-ratio: auto;
}

.about-ai-svg {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-lg);
}

/* ===== Demo Video Section ===== */
.demo-section {
  background: var(--white);
}

.demo-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.demo-item {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}

.demo-item:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.demo-video {
  overflow: hidden;
  background: var(--dark);
}

.video-wrapper {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
}

.video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.demo-desc {
  padding: 20px 24px;
}

.demo-desc h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 6px;
}

.demo-desc p {
  font-size: 0.9rem;
  color: var(--gray-500);
  line-height: 1.6;
}

/* ===== Vision Section ===== */
.vision-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.vision-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px;
  border: 1px solid var(--gray-100);
  transition: var(--transition);
}

.vision-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.vision-card .number {
  font-size: 3rem;
  font-weight: 900;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-family: 'Inter', sans-serif;
  margin-bottom: 16px;
  display: block;
}

.vision-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--dark);
}

.vision-card p {
  color: var(--gray-500);
  line-height: 1.7;
}

/* ===== CTA Section ===== */
.cta-section {
  background: var(--gradient-dark);
  color: white;
  text-align: center;
  padding: 64px 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.2) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-section h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 12px;
  position: relative;
}

.cta-section p {
  font-size: 1.05rem;
  opacity: 0.7;
  margin-bottom: 0;
  position: relative;
}

.cta-section .btn-primary {
  position: relative;
  background: white;
  color: var(--primary);
  box-shadow: 0 4px 20px rgba(255,255,255,0.2);
}

.cta-section .btn-primary:hover {
  box-shadow: 0 8px 30px rgba(255,255,255,0.3);
}

/* ===== Contact Section ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
}

.contact-info-cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 24px;
  background: var(--gray-100);
  border-radius: var(--radius);
  transition: var(--transition);
}

.contact-card:hover {
  background: var(--primary-light);
}

.contact-card-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  border-radius: 12px;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: white;
}

.contact-card h4 {
  font-size: 0.9rem;
  color: var(--gray-500);
  font-weight: 500;
  margin-bottom: 4px;
}

.contact-card p {
  font-size: 1rem;
  font-weight: 600;
  color: var(--dark);
}

.contact-form {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-sm);
}

.contact-form h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--dark);
}

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

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gray-700);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--gray-300);
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
  transition: var(--transition);
  background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
  height: 120px;
  resize: vertical;
}

.btn-submit {
  width: 100%;
  padding: 14px;
  background: var(--gradient-primary);
  color: white;
  border: none;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 99, 235, 0.4);
}

/* ===== Map Section ===== */
.map-container {
  width: 100%;
  height: 300px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-top: 40px;
  border: 1px solid var(--gray-100);
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

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

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 32px;
}

.footer-brand .logo {
  color: white;
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 320px;
}

.footer-col h4 {
  color: white;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 20px;
}

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

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul li a {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.5);
}

.footer-col ul li a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  text-align: center;
}

/* ===== Partners Section ===== */
.partners-section {
  padding: 64px 0;
  background: var(--gray-100);
  text-align: center;
}

.partners-section h3 {
  font-size: 0.9rem;
  color: var(--gray-500);
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 32px;
}

.partners-grid {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}

.partner-card {
  background: var(--white);
  border-radius: 12px;
  padding: 20px 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  min-width: 160px;
  min-height: 80px;
}

.partner-card img {
  height: 44px;
  width: auto;
  max-width: 160px;
  object-fit: contain;
  filter: grayscale(30%);
  opacity: 0.85;
  transition: var(--transition);
}

.partner-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.partner-card:hover img {
  filter: grayscale(0%);
  opacity: 1;
}

/* ===== Problem Section ===== */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.problem-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  border: 1px solid var(--gray-100);
  text-align: center;
  transition: var(--transition);
  position: relative;
}

.problem-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.problem-icon {
  font-size: 3rem;
  margin-bottom: 20px;
  display: block;
}

.problem-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
}

.problem-card p {
  font-size: 0.95rem;
  color: var(--gray-500);
  line-height: 1.7;
  word-break: keep-all;
}

/* ===== Solution Section ===== */
.solution-section {
  background: var(--gray-100);
}

.solution-main {
  margin-bottom: 40px;
}

.solution-highlight {
  display: flex;
  align-items: center;
  gap: 24px;
  background: var(--white);
  border: 2px solid var(--primary-light);
  border-radius: var(--radius-lg);
  padding: 32px 36px;
  box-shadow: var(--shadow-sm);
}

.solution-highlight-icon {
  font-size: 3.5rem;
  min-width: 80px;
  text-align: center;
}

.solution-highlight h3 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 10px;
}

.solution-highlight p {
  font-size: 1rem;
  color: var(--gray-500);
  line-height: 1.8;
}

/* ===== Technology Section ===== */
.tech-grid {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 30px;
  align-items: start;
}

.tech-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-100);
}

.tech-card-main {
  padding: 40px 36px;
  position: relative;
  overflow: hidden;
}

.tech-card-main::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: var(--gradient-primary);
}

.tech-card-badge {
  display: inline-block;
  padding: 6px 14px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.tech-card-main h3 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 16px;
}

.tech-card-main p {
  font-size: 1rem;
  color: var(--gray-500);
  line-height: 1.8;
  margin-bottom: 30px;
}

.tech-metrics {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.tech-metric {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  background: var(--gray-100);
  border-radius: var(--radius);
}

.tech-metric-icon {
  font-size: 1.5rem;
  min-width: 36px;
  text-align: center;
}

.tech-metric strong {
  display: block;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--dark);
}

.tech-metric span {
  font-size: 0.85rem;
  color: var(--gray-500);
}

.tech-side {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.tech-card-sm {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: var(--transition);
}

.tech-card-sm:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.tech-sm-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.tech-card-sm h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
}

.tech-card-sm p {
  font-size: 0.9rem;
  color: var(--gray-500);
  line-height: 1.7;
}

/* ===== Market Section ===== */
.market-section {
  background: var(--gray-100);
}

.market-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.market-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  border: 1px solid var(--gray-100);
  transition: var(--transition);
}

.market-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-light);
}

.market-icon {
  font-size: 2.8rem;
  margin-bottom: 16px;
  display: block;
}

.market-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 10px;
}

.market-card p {
  font-size: 0.9rem;
  color: var(--gray-500);
  line-height: 1.6;
}

/* ===== Steps / How It Works ===== */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  position: relative;
}

.steps-grid::before {
  content: '';
  position: absolute;
  top: 50px;
  left: 15%;
  right: 15%;
  height: 3px;
  background: var(--primary-light);
  z-index: 0;
}

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

.step-number {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: white;
  font-size: 1.6rem;
  font-weight: 800;
  font-family: 'Inter', sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.3);
}

.step-content h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
}

.step-content p {
  font-size: 0.95rem;
  color: var(--gray-500);
  line-height: 1.7;
  max-width: 320px;
  margin: 0 auto;
}

/* ===== About Box Detail ===== */
.about-box-detail {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.2);
}

.about-box-detail span {
  font-size: 0.9rem;
  opacity: 0.8;
}

/* ===== Animations ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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

/* Scroll animations */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero h1 { font-size: 2.4rem; }
  .section-header h2 { font-size: 1.8rem; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .tech-grid { grid-template-columns: 1fr; }
  .market-grid { grid-template-columns: repeat(2, 1fr); }
  .hero .container { gap: 32px; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .mobile-toggle { display: flex; }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: white;
    padding: 24px;
    box-shadow: var(--shadow-lg);
    gap: 16px;
  }

  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }

  .hero h1 { font-size: 2rem; }
  .hero p { margin: 0 auto 28px; max-width: 100%; }
  .hero-buttons { justify-content: center; }

  .features-grid { grid-template-columns: 1fr; }
  .demo-grid { grid-template-columns: 1fr; max-width: 600px; margin: 0 auto; }
  .about-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .vision-cards { grid-template-columns: 1fr; }
  .problem-grid { grid-template-columns: 1fr; }
  .market-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; gap: 40px; }
  .steps-grid::before { display: none; }
  .tech-grid { grid-template-columns: 1fr; }
  .solution-highlight { flex-direction: column; text-align: center; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom { gap: 4px; }
  .about-stats { grid-template-columns: repeat(3, 1fr); gap: 12px; }
  .stat-number { font-size: 1.5rem; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.7rem; }
  .hero-buttons { flex-direction: column; align-items: center; }
  .btn { width: 100%; justify-content: center; }
  .about-stats { grid-template-columns: 1fr; }
  .section { padding: 60px 0; }
  .partners-section { padding: 48px 0; }
  .cta-section { padding: 48px 0; }
  .container { padding: 0 20px; }
}