/* ============================================
   Avianext - Travel ERP & Airline Technology
   Main Stylesheet
   ============================================ */

:root {
  --navy: #0a1628;
  --deep-blue: #0f2447;
  --blue: #1a3a6b;
  --mid-blue: #1e4fa0;
  --accent: #00b4d8;
  --accent-light: #48cae4;
  --mint: #06d6a0;
  --white: #ffffff;
  --light-gray: #f4f7fb;
  --gray: #8892a4;
  --dark-gray: #3d4a5c;
  --text: #1c2940;
  --border: #e2e8f0;
  --card-bg: #ffffff;
  --gradient-hero: linear-gradient(135deg, #0a1628 0%, #0f2447 40%, #1a3a6b 100%);
  --gradient-accent: linear-gradient(90deg, #00b4d8, #06d6a0);
  --gradient-card: linear-gradient(135deg, #f4f7fb 0%, #eaf1fb 100%);
  --shadow-sm: 0 2px 8px rgba(10,22,40,0.08);
  --shadow-md: 0 8px 30px rgba(10,22,40,0.12);
  --shadow-lg: 0 20px 60px rgba(10,22,40,0.18);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Sans KR', 'Pretendard', 'Apple SD Gothic Neo', sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ============ TYPOGRAPHY ============ */
h1, h2, h3, h4, h5 {
  font-weight: 700;
  line-height: 1.3;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(0, 180, 216, 0.1);
  border: 1px solid rgba(0, 180, 216, 0.25);
  padding: 5px 12px;
  border-radius: 50px;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  color: var(--navy);
  margin-bottom: 16px;
}

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

.section-desc {
  font-size: 1.05rem;
  color: var(--gray);
  line-height: 1.75;
  max-width: 580px;
}

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

.section-header .section-desc {
  margin: 0 auto;
}

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

section {
  padding: 96px 0;
}

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-accent);
  color: var(--white);
  box-shadow: 0 4px 20px rgba(0, 180, 216, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 180, 216, 0.5);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.5);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--white);
}

.btn-outline-dark {
  background: transparent;
  color: var(--navy);
  border: 1.5px solid var(--border);
}

.btn-outline-dark:hover {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
}

.btn-ghost {
  background: rgba(255,255,255,0.12);
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.2);
  backdrop-filter: blur(8px);
}

.btn-ghost:hover {
  background: rgba(255,255,255,0.2);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1rem;
  border-radius: 10px;
}


/* top menu */

.header_top_bar {
  background: #1f3a5f;
  height: 36px;
  font-size: 13px;
}

.header_top_inner {
  max-width: 1200px;
  margin: 0 auto;
  height: 100%;

  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.header_top_menu {
  display: flex;
  gap: 20px;
}

.header_top_menu a {
  color: #fff;
  text-decoration: none;
  opacity: 0.85;
}

.header_top_menu a:hover {
  opacity: 1;
}


/* ============ HEADER / NAVIGATION ============ */
#header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0;
  transition: all 0.4s ease;
  border-bottom: 1px solid #000;
}

#header.transparent {
  background: transparent;
  background-color:#fff;
}

#header.scrolled {
  background: rgba(10, 22, 40, 0.97);
  backdrop-filter: blur(20px);
  box-shadow: 0 2px 30px rgba(0,0,0,0.3);
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  padding: 0 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.nav-logo {
  display: flex;
  align-items: center;
  height: 56px; /* header 높이에 맞추기 */
}

.logo-icon img {
  height: 40px;      /* 적당한 크기 */
  width: auto;
  display: block;
}


.logo-text {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.02em;
}

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

.nav-menu {
  display: flex;
  align-items: center;
  gap: 15px;
  list-style: none;
  color: #000;
  font-size: 20px;
}

.nav-menu a {
  display: block;
  padding: 8px 14px;
  color: #000;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 6px;
  transition: all var(--transition);
}

.nav-menu a:hover {
  color: #000;
  background: rgba(0, 0, 0, 0.06);
}

.nav-menu a.nav-link-active {
  color: #000;
  font-weight: 800;
}

/* 스크롤 헤더(어두운 배경)용 — 클래스 사용 시 */
#header.scrolled .nav-menu a {
  color: rgba(255, 255, 255, 0.9);
}

#header.scrolled .nav-menu a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-cta .btn {
  padding: 9px 20px;
  font-size: 0.875rem;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

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

/* Mobile Menu — 외곽은 top~bottom 고정, .mobile-menu-inner만 스크롤 → 하단 검은 라인이 항상 보임 */
.mobile-menu {
  display: none;
  flex-direction: column;
  position: fixed;
  top: 106px;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1000;
  overflow: hidden;
  background: #fff;
  padding-bottom: env(safe-area-inset-bottom, 0px);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid #10264b;
  box-shadow: 0 8px 24px rgba(10, 22, 40, 0.08);
}

.mobile-menu.active {
  display: flex;
}

.mobile-menu-inner {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  padding: 20px 24px 32px;
}

.mobile-menu-inner > a {
  display: block;
  padding: 14px 0;
  color: #000;
  text-decoration: none;
  font-size: 1rem;
  font-weight: 500;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  transition: color var(--transition);
}

.mobile-menu-inner > a:hover {
  color: #000;
}

.mobile-menu-cta {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* ============ HERO SECTION ============ */
#hero {
  /* min-height: 100vh; */
  background: var(--gradient-hero);
  position: relative;
  display: flex;
  align-items: center;
  padding: 160px 0 0px;
  overflow: hidden;
}

.hero-bg-elements {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero-circle {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(0, 180, 216, 0.12);
}

.hero-circle-1 {
  width: 600px;
  height: 600px;
  right: -100px;
  top: -100px;
}

.hero-circle-2 {
  width: 400px;
  height: 400px;
  right: 150px;
  top: 50px;
  border-color: rgba(6, 214, 160, 0.1);
}

.hero-circle-3 {
  width: 200px;
  height: 200px;
  left: 10%;
  bottom: 15%;
  border-color: rgba(0, 180, 216, 0.08);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 180, 216, 0.15);
  border: 1px solid rgba(0, 180, 216, 0.3);
  color: var(--accent-light);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 28px;
}

.hero-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  color: var(--white);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
  line-height: 1.2;
}

.hero-title .highlight {
  display: inline-block;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.7);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 480px;
}

.hero-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 36px;
  margin-top: 56px;
  padding-top: 36px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.hero-stat-item {
  text-align: left;
}

.hero-stat-num {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--white);
  display: block;
  line-height: 1;
  margin-bottom: 4px;
}

.hero-stat-num span {
  color: var(--accent);
}

.hero-stat-label {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.5);
  font-weight: 500;
}

/* Hero main image (right column) */
.main_top_img_wrap {
  padding: 60px 20px 60px;
  text-align: center;
}

.main_top_hero-title {
  color: #fff;
  margin-bottom: 20px;
}

.main_top_sub-text {
  font-size: 16px;
  opacity: 0.8;
  letter-spacing: 0.5px;
  font-family: 'Gowun Dodum', sans-serif;
}

.main_top_hero-title h1 {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.3px;
}

.main_top_img img {
  width: 100%;
  max-width: 1000px;
  border-radius: 16px;
  display: block;
  margin: 0 auto;
}

/* Hero Dashboard Mockup */
.hero-visual {
  position: relative;
  z-index: 2;
}

.dashboard-mockup {
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  padding: 20px;
  position: relative;
}

.dashboard-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}

.d-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.d-dot-red { background: #ff5f57; }
.d-dot-yellow { background: #febc2e; }
.d-dot-green { background: #28c840; }

.d-title {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.5);
  margin-left: 8px;
  font-weight: 500;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 10px;
}

.d-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  padding: 14px;
}

.d-card-label {
  font-size: 0.7rem;
  color: rgba(255,255,255,0.45);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.d-card-value {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--white);
}

.d-card-sub {
  font-size: 0.65rem;
  color: var(--mint);
  margin-top: 3px;
}

.d-card-full {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  padding: 14px;
  margin-bottom: 10px;
}

.d-bar-chart {
  display: flex;
  align-items: flex-end;
  gap: 5px;
  height: 48px;
  margin-top: 8px;
}

.d-bar {
  flex: 1;
  border-radius: 3px 3px 0 0;
  background: linear-gradient(to top, #00b4d8, #48cae4);
  opacity: 0.7;
  transition: opacity 0.3s;
}

.d-bar:hover { opacity: 1; }

.d-list {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.d-list-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,0.04);
  border-radius: 7px;
  padding: 8px 10px;
}

.d-list-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

.d-list-text {
  font-size: 0.68rem;
  color: rgba(255,255,255,0.65);
  flex: 1;
}

.d-list-badge {
  font-size: 0.6rem;
  padding: 2px 7px;
  border-radius: 20px;
  font-weight: 600;
}

.badge-done { background: rgba(6,214,160,0.2); color: var(--mint); }
.badge-pending { background: rgba(0,180,216,0.2); color: var(--accent); }
.badge-active { background: rgba(255,193,7,0.2); color: #ffc107; }

.floating-card {
  position: absolute;
  background: rgba(255,255,255,0.95);
  border-radius: 12px;
  padding: 12px 16px;
  box-shadow: 0 15px 40px rgba(0,0,0,0.25);
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 160px;
}

.floating-card-1 {
  bottom: -20px;
  left: -30px;
}

.floating-card-2 {
  top: -15px;
  right: -20px;
}

.fc-icon {
  width: 38px;
  height: 38px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.fc-icon-blue { background: linear-gradient(135deg, #00b4d8, #0077b6); }
.fc-icon-green { background: linear-gradient(135deg, #06d6a0, #0096c7); }

.fc-label {
  font-size: 0.65rem;
  color: var(--gray);
  margin-bottom: 2px;
  font-weight: 500;
}

.fc-value {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
}

/* ============ VALUE / FEATURES CARDS ============ */
#value {
  background: var(--light-gray);
  padding: 80px 0;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.value-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px 24px;
  border: 1px solid var(--border);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.value-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-accent);
  transform: scaleX(0);
  transition: transform var(--transition);
  transform-origin: left;
}

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

.value-card:hover::before {
  transform: scaleX(1);
}

.value-icon {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.vi-blue { background: linear-gradient(135deg, #e8f4fd, #bee3f8); }
.vi-cyan { background: linear-gradient(135deg, #e0f7fa, #b2ebf2); }
.vi-green { background: linear-gradient(135deg, #e8f5e9, #c8e6c9); }
.vi-purple { background: linear-gradient(135deg, #ede7f6, #d1c4e9); }

.value-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 10px;
}

.value-card p {
  font-size: 0.875rem;
  color: var(--gray);
  line-height: 1.7;
}

/* ============ SOLUTIONS SECTION ============ */
#solutions {
  background: var(--white);
}

.solution-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  margin-bottom: 100px;
}

.solution-block:last-child {
  margin-bottom: 0;
}

.solution-block.reverse {
  direction: rtl;
}

.solution-block.reverse > * {
  direction: ltr;
}

.sol-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 50px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.sol-badge-blue {
  background: rgba(0,119,182,0.1);
  color: #0077b6;
  border: 1px solid rgba(0,119,182,0.2);
}

.sol-badge-cyan {
  background: rgba(0,180,216,0.1);
  color: #0096c7;
  border: 1px solid rgba(0,180,216,0.2);
}

.sol-badge-green {
  background: rgba(6,214,160,0.12);
  color: #059669;
  border: 1px solid rgba(6,214,160,0.25);
}

.solution-text h2 {
  font-size: clamp(1.6rem, 2.8vw, 2.1rem);
  color: var(--navy);
  margin-bottom: 14px;
  letter-spacing: -0.8px;
}

.solution-text h2 span {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.solution-text > p {
  font-size: 1rem;
  color: var(--gray);
  line-height: 1.8;
  margin-bottom: 28px;
}

.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--dark-gray);
}

.feature-list li::before {
  content: '';
  width: 20px;
  height: 20px;
  background: rgba(0,180,216,0.12);
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 1px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%2300b4d8'%3E%3Cpath fill-rule='evenodd' d='M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z' clip-rule='evenodd'/%3E%3C/svg%3E");
  background-size: 12px;
  background-position: center;
  background-repeat: no-repeat;
}

/* ERP Mockup */
.erp-mockup {
  background: var(--navy);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.erp-topbar {
  background: rgba(255,255,255,0.06);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.erp-dots {
  display: flex;
  gap: 5px;
}

.erp-dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.erp-topbar-title {
  font-size: 0.7rem;
  color: rgba(255,255,255,0.4);
  flex: 1;
  text-align: center;
  font-weight: 500;
}

.erp-body {
  display: flex;
  height: 340px;
}

.erp-sidebar {
  width: 130px;
  background: rgba(255,255,255,0.03);
  border-right: 1px solid rgba(255,255,255,0.06);
  padding: 12px 0;
  flex-shrink: 0;
}

.erp-sidebar-item {
  padding: 9px 14px;
  font-size: 0.68rem;
  color: rgba(255,255,255,0.4);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s;
}

.erp-sidebar-item.active {
  background: rgba(0,180,216,0.12);
  color: var(--accent);
  border-left: 2px solid var(--accent);
}

.erp-sidebar-item:hover:not(.active) {
  color: rgba(255,255,255,0.7);
  background: rgba(255,255,255,0.04);
}

.erp-main {
  flex: 1;
  padding: 16px;
  overflow: hidden;
  background: #fff;
}

/* 흰 배경(.erp-main) 안에서만 KPI·표 대비 유지 */
.erp-main .erp-kpi {
  background: rgba(10, 22, 40, 0.04);
  border-color: rgba(10, 22, 40, 0.08);
}

.erp-main .erp-kpi-label {
  color: rgba(10, 22, 40, 0.45);
}

.erp-main .erp-kpi-val {
  color: var(--navy);
}

.erp-main .erp-table {
  background: rgba(10, 22, 40, 0.03);
}

.erp-main .erp-table-header {
  background: rgba(10, 22, 40, 0.05);
  border-bottom-color: rgba(10, 22, 40, 0.08);
}

.erp-main .erp-th {
  color: rgba(10, 22, 40, 0.45);
}

.erp-main .erp-table-row {
  border-bottom-color: rgba(10, 22, 40, 0.07);
}

.erp-main .erp-td {
  color: rgba(10, 22, 40, 0.75);
}

.erp-kpi-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 12px;
}

.erp-kpi {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 8px;
  padding: 10px;
}

.erp-kpi-label {
  font-size: 0.6rem;
  color: rgba(255,255,255,0.4);
  margin-bottom: 4px;
}

.erp-kpi-val {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
}

.erp-kpi-trend {
  font-size: 0.6rem;
  color: var(--mint);
  margin-top: 2px;
}

.erp-table {
  background: rgba(255,255,255,0.03);
  border-radius: 8px;
  overflow: hidden;
}

.erp-table-header {
  display: grid;
  grid-template-columns: 2fr 1.5fr 1fr 1fr;
  gap: 8px;
  padding: 8px 12px;
  background: rgba(255,255,255,0.04);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.erp-th {
  font-size: 0.6rem;
  color: rgba(255,255,255,0.35);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.erp-table-row {
  display: grid;
  grid-template-columns: 2fr 1.5fr 1fr 1fr;
  gap: 8px;
  padding: 8px 12px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  align-items: center;
}

.erp-td {
  font-size: 0.65rem;
  color: rgba(255,255,255,0.6);
}

.erp-status {
  display: inline-block;
  padding: 2px 7px;
  border-radius: 20px;
  font-size: 0.6rem;
  font-weight: 600;
}

.status-done { background: rgba(6,214,160,0.15); color: #06d6a0; }
.status-proc { background: rgba(0,180,216,0.15); color: #00b4d8; }
.status-wait { background: rgba(255,193,7,0.15); color: #ffc107; }

/* Ticket Mockup */
.ticket-mockup {
  background: var(--light-gray);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
}

.ticket-topbar {
  background: var(--deep-blue);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ticket-title-bar {
  font-size: 0.8rem;
  color: var(--white);
  font-weight: 600;
}

.ticket-status-bar {
  display: flex;
  gap: 8px;
}

.t-stat {
  font-size: 0.65rem;
  padding: 3px 10px;
  border-radius: 20px;
  font-weight: 600;
}

.t-stat-live { background: rgba(6,214,160,0.2); color: #06d6a0; }
.t-stat-api { background: rgba(0,180,216,0.2); color: #00b4d8; }

.ticket-body {
  padding: 20px;
}

.ticket-search-box {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
  margin-bottom: 14px;
}

.ticket-search-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 8px;
  align-items: center;
  margin-bottom: 10px;
}

.t-input {
  background: var(--light-gray);
  border: none;
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 0.7rem;
  color: var(--dark-gray);
}

.t-arrow {
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 700;
}

.t-search-btn {
  grid-column: 1 / -1;
  background: var(--gradient-accent);
  color: var(--white);
  border: none;
  border-radius: 6px;
  padding: 8px;
  font-size: 0.72rem;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
}

.ticket-results {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ticket-result-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: border-color 0.2s;
}

.ticket-result-item.selected {
  border-color: var(--accent);
  background: rgba(0,180,216,0.03);
}

.tri-airline {
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--navy);
  width: 32px;
  text-align: center;
}

.tri-route {
  flex: 1;
}

.tri-time {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--navy);
}

.tri-duration {
  font-size: 0.6rem;
  color: var(--gray);
  text-align: center;
}

.tri-class {
  font-size: 0.6rem;
  color: var(--gray);
}

.tri-price {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--accent);
}

.tri-price span {
  font-size: 0.6rem;
  color: var(--gray);
  font-weight: 400;
}

/* Carbon Mockup */
.carbon-mockup {
  background: linear-gradient(135deg, #0a1628, #0f2447);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.carbon-mockup::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, rgba(6,214,160,0.12) 0%, transparent 70%);
}

.carbon-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.carbon-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--white);
}

.carbon-badge {
  font-size: 0.65rem;
  padding: 4px 10px;
  background: rgba(6,214,160,0.15);
  color: var(--mint);
  border-radius: 20px;
  font-weight: 600;
  border: 1px solid rgba(6,214,160,0.25);
}

.carbon-gauge {
  position: relative;
  margin: 0 auto 20px;
  width: 140px;
  height: 80px;
  overflow: hidden;
}

.carbon-gauge-bg {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  border: 12px solid rgba(255,255,255,0.07);
  position: absolute;
  top: 0;
  left: 0;
}

.carbon-gauge-fill {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  border: 12px solid transparent;
  border-top-color: var(--mint);
  border-right-color: var(--mint);
  position: absolute;
  top: 0;
  left: 0;
  transform: rotate(-180deg);
}

.carbon-gauge-center {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
}

.carbon-gauge-val {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--white);
  display: block;
}

.carbon-gauge-unit {
  font-size: 0.6rem;
  color: var(--mint);
  font-weight: 600;
}

.carbon-stats {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  margin-bottom: 14px;
}

.cs-item {
  background: rgba(255,255,255,0.05);
  border-radius: 8px;
  padding: 10px 8px;
  text-align: center;
  border: 1px solid rgba(255,255,255,0.07);
}

.cs-value {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--white);
  display: block;
}

.cs-label {
  font-size: 0.6rem;
  color: rgba(255,255,255,0.4);
  margin-top: 2px;
}

.carbon-trend {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.ct-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ct-label {
  font-size: 0.65rem;
  color: rgba(255,255,255,0.5);
  width: 60px;
  flex-shrink: 0;
}

.ct-bar-bg {
  flex: 1;
  height: 6px;
  background: rgba(255,255,255,0.08);
  border-radius: 3px;
  overflow: hidden;
}

.ct-bar-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--gradient-accent);
}

.ct-val {
  font-size: 0.65rem;
  color: rgba(255,255,255,0.5);
  width: 35px;
  text-align: right;
}

/* ============ TARGET SECTION ============ */
#target {
  background: var(--light-gray);
}

.target-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.target-card {
  position: relative;
  background: var(--white);
  border-radius: var(--radius);
  padding: 26px 18px 24px;
  text-align: center;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  min-height: 190px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  overflow: hidden;
}

.target-card:hover {
  border-color: rgba(0, 180, 216, 0.85);
  transform: translateY(-6px);
  box-shadow: 0 14px 40px rgba(10, 22, 40, 0.10);
}

.target-icon {
  width: auto;
  height: auto;
  margin: 0 auto 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: rgba(0, 180, 216, 0.9);
  flex-shrink: 0;
}

.target-icon i {
  font-size: 1.35rem;
  line-height: 1;
  /* 아이콘이 과하게 진하지 않게 */
  filter: saturate(0.95);
}

.target-card h4 {
  font-size: 1rem;
  color: var(--navy);
  margin-bottom: 10px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.target-card p {
  font-size: 0.83rem;
  color: rgba(136, 146, 164, 0.95);
  line-height: 1.6;
  margin-top: auto;
}

/* ============ METRICS SECTION ============ */
#metrics {
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
}

#metrics::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(0,180,216,0.08) 0%, transparent 70%);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  position: relative;
  z-index: 1;
}

.metric-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  backdrop-filter: blur(10px);
  transition: all var(--transition);
}

.metric-card:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-4px);
}

.metric-icon {
  font-size: 1.8rem;
  margin-bottom: 12px;
}

.metric-num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--white);
  display: block;
  line-height: 1;
  margin-bottom: 16px;
}

.metric-num .unit {
  font-size: 1rem;
  color: var(--accent);
}

.metric-label {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.5;
}

/* ============ WHY AVIANEXT SECTION ============ */
#why {
  background: var(--white);
}

.why-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.why-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.why-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: all var(--transition);
}

.why-item:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-sm);
  background: rgba(0,180,216,0.02);
}

.why-num {
  font-size: 2rem;
  font-weight: 900;
  color: rgba(0,180,216,0.15);
  line-height: 1;
  min-width: 48px;
  font-style: italic;
}

.why-item-content h3 {
  font-size: 1rem;
  color: var(--navy);
  margin-bottom: 6px;
}

.why-item-content p {
  font-size: 0.875rem;
  color: var(--gray);
  line-height: 1.7;
}

.why-visual {
  position: relative;
}

.platform-diagram {
  background: var(--navy);
  border-radius: var(--radius-lg);
  padding: 36px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.platform-diagram::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 40%, rgba(0,180,216,0.1) 0%, transparent 60%);
}

.pd-center {
  width: 90px;
  height: 90px;
  background: var(--gradient-accent);
  border-radius: 20px;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  box-shadow: 0 12px 40px rgba(0,180,216,0.4);
  position: relative;
  z-index: 1;
}

.pd-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 6px;
  position: relative;
  z-index: 1;
}

.pd-sub {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.5);
  margin-bottom: 32px;
  position: relative;
  z-index: 1;
}

.pd-connections {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  position: relative;
  z-index: 1;
}

.pd-module {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  padding: 12px 8px;
  text-align: center;
  transition: all 0.3s;
}

.pd-module:hover {
  background: rgba(0,180,216,0.12);
  border-color: rgba(0,180,216,0.25);
}

.pd-module-icon {
  font-size: 1.2rem;
  margin-bottom: 6px;
}

.pd-module-name {
  font-size: 0.65rem;
  color: rgba(255,255,255,0.6);
  font-weight: 500;
}

/* ============ ABOUT SECTION ============ */
#about {
  background: var(--light-gray);
}

.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-tag-title {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: -0.5px;
  text-transform: uppercase;
}

.about-title {
  font-size: clamp(1.6rem, 2.8vw, 2.2rem);
  color: var(--navy);
  margin-bottom: 20px;
}

.about-text {
  font-size: 1rem;
  color: var(--dark-gray);
  line-height: 1.9;
  margin-bottom: 32px;
}

.about-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.keyword-tag {
  padding: 6px 14px;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 600;
  background: rgba(0,180,216,0.1);
  color: #0096c7;
  border: 1px solid rgba(0,180,216,0.2);
}

.about-right {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.about-stat-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 20px;
  transition: all var(--transition);
}

.about-stat-card:hover {
  box-shadow: var(--shadow-sm);
  border-color: var(--accent);
}

.asc-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.asc-icon-1 { background: linear-gradient(135deg, #e8f4fd, #bee3f8); }
.asc-icon-2 { background: linear-gradient(135deg, #e0f7fa, #b2ebf2); }
.asc-icon-3 { background: linear-gradient(135deg, #e8f5e9, #c8e6c9); }

.asc-content h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 4px;
}

.asc-content p {
  font-size: 0.82rem;
  color: var(--gray);
  line-height: 1.5;
}

/* ============ CTA SECTION ============ */
#cta {
  background: var(--gradient-hero);
  text-align: center;
  padding: 40px 0;
  position: relative;
  overflow: hidden;
}

#cta::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(0,180,216,0.1) 0%, transparent 70%);
}

.cta-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0,180,216,0.15);
  border: 1px solid rgba(0,180,216,0.3);
  color: var(--accent-light);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  margin-bottom: 28px;
}

.cta-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  color: var(--white);
  font-weight: 800;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.cta-desc {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.65);
  margin-bottom: 40px;
  position: relative;
  z-index: 1;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

/* ============ FOOTER ============ */
#footer {
  background: var(--navy);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 60px 0 30px;
}

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

.footer-brand {
  /* footer-grid 내에서 왼쪽 컬럼만 시각적으로 아래로 보이는 현상 보정 */
  margin-top: -16px;
}

.footer-brand p {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.45);
  line-height: 1.8;
  margin: 0 0 10px;
  max-width: 280px;
}

.footer-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.f-keyword {
  font-size: 0.68rem;
  padding: 3px 10px;
  border-radius: 20px;
  background: rgba(255,255,255,0.06);
  color: rgba(255,255,255,0.4);
  border: 1px solid rgba(255,255,255,0.08);
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  font-size: 0.83rem;
  color: rgba(255,255,255,0.45);
  text-decoration: none;
  padding: 5px 0;
  transition: color var(--transition);
}

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

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
}

.contact-icon {
  font-size: 0.85rem;
  color: var(--accent);
  margin-top: 2px;
  flex-shrink: 0;
}

.contact-info {
  font-size: 0.83rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.6;
}

.footer-divider {
  border: none;
  border-top: 1px solid rgba(255,255,255,0.06);
  margin-bottom: 24px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.3);
}

.footer-bottom-links {
  display: flex;
  gap: 20px;
}

.footer-bottom-links a {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.3);
  text-decoration: none;
  transition: color var(--transition);
}

.footer-bottom-links a:hover {
  color: rgba(255,255,255,0.6);
}

/* ============ 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-delay-1 { transition-delay: 0.1s; }
.fade-up-delay-2 { transition-delay: 0.2s; }
.fade-up-delay-3 { transition-delay: 0.3s; }
.fade-up-delay-4 { transition-delay: 0.4s; }

/* ============ SCROLL TO TOP ============ */
.scroll-top {
  position: fixed;
  bottom: 32px;
  right: 28px;
  width: 44px;
  height: 44px;
  background: var(--gradient-accent);
  color: var(--white);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(0,180,216,0.4);
  opacity: 0;
  transform: translateY(16px);
  transition: all 0.3s ease;
  z-index: 999;
}

.scroll-top.show {
  opacity: 1;
  transform: translateY(0);
}

.scroll-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(0,180,216,0.55);
}

/* ============ SECTION DIVIDERS ============ */
.wave-divider {
  line-height: 0;
  overflow: hidden;
}

/* ============ TOOLTIP / TAG PILLS ============ */
.tech-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 3px 10px;
  border-radius: 20px;
  background: rgba(0,180,216,0.1);
  color: var(--accent);
  border: 1px solid rgba(0,180,216,0.2);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 1100px) {
  .value-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .target-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .metrics-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 900px) {
  .nav-menu, .nav-cta { display: none; }
  .hamburger { display: flex; }
  
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .main_top_img_wrap { display: none; }
  .main_top_img { width:653px;}



  .hero-visual { order: -1; }
  
  .solution-block {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .solution-block.reverse { direction: ltr; }
  
  .why-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  
  .about-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .hero-stats {
    gap: 24px;
  }
}

@media (max-width: 680px) {
  section { padding: 64px 0; }
  
  .value-grid {
    grid-template-columns: 1fr;
  }
  
  .target-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .hero-stats {
    flex-wrap: wrap;
    gap: 20px;
  }
  
  .hero-buttons {
    flex-direction: column;
  }
  
  .pd-connections {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 480px) {
  .target-grid {
    grid-template-columns: 1fr;
  }
  
  .metrics-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }
}