/* ============================================
   makethis1. — PlusX-Inspired Redesign
   Design System & Styles
   ============================================ */

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

/* ---- Design Tokens ---- */
:root {
  /* Navy-Blue based palette inspired by the logo */
  --color-primary: #0038A8;
  --color-primary-dark: #002878;
  --color-primary-light: #1A5FD1;
  --color-primary-glow: rgba(0, 56, 168, 0.3);

  --color-bg: #050A18;
  --color-bg-alt: #0A1228;
  --color-bg-card: #0E1A35;
  --color-bg-light: #F0F4FA;
  --color-surface: #111D38;
  --color-border: rgba(0, 56, 168, 0.15);
  --color-border-light: rgba(255, 255, 255, 0.06);
  --color-text: #FFFFFF;
  --color-text-dim: rgba(255, 255, 255, 0.55);
  --color-text-muted: rgba(255, 255, 255, 0.3);
  --color-accent: #0038A8;
  --color-accent-light: #4D8BF5;
  --color-accent-glow: rgba(77, 139, 245, 0.2);

  --font-en: 'Inter', -apple-system, sans-serif;
  --font-kr: 'Noto Sans KR', 'Inter', sans-serif;

  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);

  --nav-height: 72px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-kr);
  line-height: 1.6;
  overflow-x: hidden;
}

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

button {
  border: none;
  background: none;
  cursor: pointer;
  color: inherit;
  font: inherit;
}

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

ul,
ol {
  list-style: none;
}

/* ---- INTRO SPLASH SCREEN ---- */
.intro-splash {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  background: var(--color-primary);
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

.intro-splash.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.intro-logo-container {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

.intro-triangle {
  width: 0;
  height: 0;
  border-left: 18px solid transparent;
  border-right: 18px solid transparent;
  border-top: 22px solid #fff;
  opacity: 0;
  transform: translateY(-30px);
  animation: introTriDrop 0.6s var(--ease-out-expo) 0.3s forwards;
}

@keyframes introTriDrop {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.intro-brand {
  font-family: var(--font-en);
  font-weight: 900;
  font-size: clamp(3rem, 8vw, 5.5rem);
  color: #fff;
  letter-spacing: -0.03em;
  margin-top: -4px;
}

.intro-brand .char {
  display: inline-block;
  opacity: 0;
  transform: translateY(60px) rotateX(90deg);
  animation: introCharIn 0.5s var(--ease-out-expo) forwards;
}

.intro-brand .char:nth-child(1) {
  animation-delay: 0.4s;
}

.intro-brand .char:nth-child(2) {
  animation-delay: 0.45s;
}

.intro-brand .char:nth-child(3) {
  animation-delay: 0.5s;
}

.intro-brand .char:nth-child(4) {
  animation-delay: 0.55s;
}

.intro-brand .char:nth-child(5) {
  animation-delay: 0.6s;
}

.intro-brand .char:nth-child(6) {
  animation-delay: 0.65s;
}

.intro-brand .char:nth-child(7) {
  animation-delay: 0.7s;
}

.intro-brand .char:nth-child(8) {
  animation-delay: 0.75s;
}

.intro-brand .char:nth-child(9) {
  animation-delay: 0.8s;
}

@keyframes introCharIn {
  to {
    opacity: 1;
    transform: translateY(0) rotateX(0deg);
  }
}

.intro-subtitle {
  font-family: var(--font-en);
  font-weight: 400;
  font-size: 0.85rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 12px;
  opacity: 0;
  animation: fadeInUp 0.6s var(--ease-out-expo) 1s forwards;
  transform: translateY(15px);
}

.intro-line {
  width: 60px;
  height: 2px;
  background: rgba(255, 255, 255, 0.3);
  margin-top: 20px;
  transform: scaleX(0);
  animation: lineExpand 0.5s var(--ease-out-expo) 1.2s forwards;
}

@keyframes lineExpand {
  to {
    transform: scaleX(1);
  }
}

/* Body hidden during intro */
body.intro-active {
  overflow: hidden;
}

/* ---- Typography ---- */
.t-display {
  font-family: var(--font-en);
  font-weight: 900;
  font-size: clamp(3rem, 8vw, 8rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
  text-transform: uppercase;
}

.t-heading {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: clamp(2rem, 5vw, 4.5rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}

.t-subheading {
  font-family: var(--font-kr);
  font-weight: 500;
  font-size: clamp(0.95rem, 1.5vw, 1.15rem);
  line-height: 1.7;
  color: var(--color-text-dim);
}

.t-label {
  font-family: var(--font-en);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent-light);
}

.t-accent {
  font-family: var(--font-en);
  font-weight: 300;
  font-size: clamp(0.85rem, 1.2vw, 1rem);
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  font-style: italic;
}

/* ---- Layout ---- */
.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 clamp(24px, 4vw, 60px);
}

section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0;
  overflow: hidden;
}

section.auto-height {
  min-height: auto;
}

/* ---- Geometric Background Lines (blue tinted) ---- */
.geo-lines {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}

.geo-lines::before,
.geo-lines::after {
  content: '';
  position: absolute;
  background: rgba(0, 56, 168, 0.08);
}

.geo-lines::before {
  width: 1px;
  height: 140%;
  top: -20%;
  left: 25%;
  transform: rotate(15deg);
}

.geo-lines::after {
  width: 1px;
  height: 140%;
  top: -20%;
  right: 30%;
  transform: rotate(-25deg);
}

.geo-line-extra {
  position: absolute;
  width: 1px;
  height: 160%;
  background: rgba(0, 56, 168, 0.06);
  top: -30%;
}

.geo-line-extra:nth-child(1) {
  left: 50%;
  transform: rotate(40deg);
}

.geo-line-extra:nth-child(2) {
  left: 70%;
  transform: rotate(-10deg);
}

/* Hero background gradient - blue atmosphere */
#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 50%, rgba(0, 56, 168, 0.15) 0%, transparent 70%),
    radial-gradient(ellipse 60% 50% at 80% 80%, rgba(77, 139, 245, 0.08) 0%, transparent 60%);
  z-index: 0;
}

/* ---- Header / Navigation ---- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(24px, 4vw, 60px);
  z-index: 1000;
  transition: background 0.4s ease, backdrop-filter 0.4s ease;
}

.header.scrolled {
  background: rgba(5, 10, 24, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
}

.logo {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
  z-index: 1001;
}

.logo .logo-tri {
  display: inline-block;
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 8px solid var(--color-accent-light);
  margin-right: 2px;
  vertical-align: middle;
  margin-bottom: 4px;
}

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

/* Hamburger */
.menu-toggle {
  width: 44px;
  height: 44px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  z-index: 1001;
  transition: gap 0.3s var(--ease-out-expo);
}

.menu-toggle .bar {
  width: 24px;
  height: 1.5px;
  background: var(--color-text);
  transition: all 0.4s var(--ease-out-expo);
  transform-origin: center;
}

.menu-toggle.active {
  gap: 0;
}

.menu-toggle.active .bar:first-child {
  transform: rotate(45deg) translateY(0.75px);
}

.menu-toggle.active .bar:last-child {
  transform: rotate(-45deg) translateY(-0.75px);
}

/* Fullscreen Menu Overlay */
.menu-overlay {
  position: fixed;
  inset: 0;
  background: linear-gradient(135deg, var(--color-bg) 0%, #071530 100%);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.5s var(--ease-out-expo), visibility 0.5s;
}

.menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

.menu-overlay nav {
  text-align: center;
}

.menu-overlay nav a {
  display: block;
  font-family: var(--font-en);
  font-weight: 900;
  font-size: clamp(2.5rem, 6vw, 5rem);
  letter-spacing: -0.02em;
  text-transform: uppercase;
  line-height: 1.3;
  color: var(--color-text);
  opacity: 0;
  transform: translateY(40px);
  transition: color 0.3s ease, opacity 0.5s var(--ease-out-expo), transform 0.5s var(--ease-out-expo);
}

.menu-overlay.active nav a {
  opacity: 1;
  transform: translateY(0);
}

.menu-overlay nav a:nth-child(1) {
  transition-delay: 0.1s;
}

.menu-overlay nav a:nth-child(2) {
  transition-delay: 0.15s;
}

.menu-overlay nav a:nth-child(3) {
  transition-delay: 0.2s;
}

.menu-overlay nav a:nth-child(4) {
  transition-delay: 0.25s;
}

.menu-overlay nav a:nth-child(5) {
  transition-delay: 0.3s;
}

.menu-overlay nav a:nth-child(6) {
  transition-delay: 0.35s;
}

.menu-overlay nav a:hover {
  color: var(--color-accent-light);
}

.menu-overlay .menu-contact {
  margin-top: 3rem;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s var(--ease-out-expo) 0.4s, transform 0.5s var(--ease-out-expo) 0.4s;
}

.menu-overlay.active .menu-contact {
  opacity: 1;
  transform: translateY(0);
}

.menu-overlay .menu-contact p {
  font-size: 0.85rem;
  color: var(--color-text-dim);
  line-height: 1.8;
}

/* ---- HERO Section ---- */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
}

#hero .container {
  position: relative;
  z-index: 1;
}

.hero-label {
  margin-bottom: 2rem;
}

.hero-title {
  margin-bottom: 2rem;
}

.hero-title .line {
  display: block;
  overflow: hidden;
}

.hero-title .line span {
  display: inline-block;
  transform: translateY(110%);
  animation: slideUp 1s var(--ease-out-expo) forwards;
}

.hero-title .line:nth-child(2) span {
  animation-delay: 0.15s;
}

.hero-title .line:nth-child(3) span {
  animation-delay: 0.3s;
}

@keyframes slideUp {
  to {
    transform: translateY(0);
  }
}

.hero-subtitle {
  max-width: 560px;
  margin-bottom: 3rem;
  opacity: 0;
  animation: fadeInUp 1s var(--ease-out-expo) 0.5s forwards;
}

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

.hero-subtitle {
  transform: translateY(30px);
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 36px;
  background: var(--color-accent);
  border: 1px solid var(--color-accent);
  border-radius: 50px;
  font-family: var(--font-en);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #fff;
  transition: all 0.4s var(--ease-out-expo);
  opacity: 0;
  animation: fadeInUp 1s var(--ease-out-expo) 0.7s forwards;
  transform: translateY(30px);
}

.hero-cta:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary-light);
  box-shadow: 0 8px 30px var(--color-primary-glow);
  transform: translateY(-2px);
}

.hero-cta .arrow {
  transition: transform 0.3s var(--ease-out-expo);
}

.hero-cta:hover .arrow {
  transform: translateX(6px);
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  opacity: 0;
  animation: fadeInUp 1s var(--ease-out-expo) 1s forwards;
  transform: translateY(20px);
}

.hero-scroll-indicator .scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--color-accent-light), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {

  0%,
  100% {
    opacity: 0.3;
    transform: scaleY(0.6);
  }

  50% {
    opacity: 1;
    transform: scaleY(1);
  }
}

/* ---- Section Headers ---- */
.section-header {
  margin-bottom: clamp(3rem, 5vw, 5rem);
}

.section-header .section-number {
  display: inline-block;
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--color-accent-light);
  letter-spacing: 0.15em;
  margin-bottom: 1rem;
}

.section-header .section-title-en {
  margin-bottom: 0.5rem;
}

.section-header .section-subtitle {
  max-width: 600px;
  margin-top: 1.5rem;
}

.section-header .section-accent {
  margin-top: 1rem;
  max-width: 500px;
}

/* ---- ABOUT Section ---- */
#about {
  background: var(--color-bg-alt);
}

#about::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 40% at 70% 30%, rgba(0, 56, 168, 0.1) 0%, transparent 60%);
  pointer-events: none;
}

.about-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: start;
  margin-bottom: 4rem;
}

.about-title {
  font-family: var(--font-kr);
  font-weight: 900;
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.3;
  margin-bottom: 1.5rem;
}

.about-tagline {
  font-size: 1rem;
  color: var(--color-text-dim);
  line-height: 1.7;
}

.about-story-block {
  margin-bottom: 2.5rem;
  padding-left: 20px;
  border-left: 2px solid var(--color-border);
}

.about-story-marker {
  display: inline-block;
  color: var(--color-accent-light);
  font-size: 0.6rem;
  margin-bottom: 8px;
}

.about-story-block h4 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.5;
}

.about-story-block p {
  font-size: 0.95rem;
  color: var(--color-text-dim);
  line-height: 1.8;
  margin-bottom: 0.7rem;
}

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

.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: clamp(24px, 3vw, 36px);
  text-align: center;
  transition: border-color 0.4s ease, transform 0.4s ease;
}

.stat-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
}

.stat-card .stat-number {
  font-family: var(--font-en);
  font-weight: 900;
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  color: var(--color-accent-light);
  display: inline;
  line-height: 1;
}

.stat-card .stat-suffix {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: clamp(1.2rem, 2vw, 1.8rem);
  color: var(--color-accent-light);
  display: inline;
}

.stat-card .stat-label {
  font-size: 0.85rem;
  color: var(--color-text-dim);
  margin-top: 8px;
  font-weight: 500;
}

/* ---- TEAM Section ---- */
#team {
  background: var(--color-bg);
}

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

.team-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: clamp(24px, 2.5vw, 32px);
  text-align: center;
  transition: all 0.4s var(--ease-out-expo);
  position: relative;
  overflow: hidden;
}

.team-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
  opacity: 0;
  transition: opacity 0.4s ease;
}

.team-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-6px);
  box-shadow: 0 12px 40px var(--color-accent-glow);
}

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

.team-card-icon {
  font-size: 2.2rem;
  margin-bottom: 12px;
}

.team-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: 16px;
}

.badge-law {
  background: rgba(0, 56, 168, 0.15);
  color: var(--color-accent-light);
  border: 1px solid rgba(0, 56, 168, 0.3);
}

.badge-media {
  background: rgba(239, 68, 68, 0.12);
  color: #F87171;
  border: 1px solid rgba(239, 68, 68, 0.25);
}

.badge-global {
  background: rgba(34, 197, 94, 0.12);
  color: #4ADE80;
  border: 1px solid rgba(34, 197, 94, 0.25);
}

.team-name {
  font-weight: 800;
  font-size: 1.1rem;
  margin-bottom: 4px;
}

.team-role {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-weight: 600;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-family: var(--font-en);
}

.team-bg {
  font-size: 0.82rem;
  color: var(--color-text-dim);
  line-height: 1.6;
}

/* ---- AI PLATFORM Section ---- */
.platform-section {
  background: var(--color-bg-alt);
  position: relative;
  overflow: hidden;
}

.platform-bg-glow {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% 30%, rgba(0, 56, 168, 0.2) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 20% 70%, rgba(77, 139, 245, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse 40% 30% at 80% 80%, rgba(0, 56, 168, 0.08) 0%, transparent 40%);
  pointer-events: none;
  z-index: 0;
}

.platform-hero-block {
  text-align: center;
  margin-bottom: 3rem;
}

.platform-eyebrow {
  font-family: var(--font-en);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent-light);
  margin-bottom: 1rem;
}

.platform-title {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 16px;
  margin-bottom: 1.5rem;
}

.platform-brand-name {
  font-family: var(--font-kr);
  font-weight: 900;
  font-size: clamp(3rem, 7vw, 5rem);
  background: linear-gradient(135deg, #fff 0%, var(--color-accent-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.platform-brand-sub {
  font-family: var(--font-en);
  font-weight: 300;
  font-size: clamp(1.2rem, 2vw, 1.8rem);
  color: var(--color-text-muted);
  letter-spacing: 0.1em;
}

.platform-desc {
  font-size: 1.05rem;
  color: var(--color-text-dim);
  line-height: 1.8;
  max-width: 600px;
  margin: 0 auto;
}

/* Free Offer Card */
.platform-free-offer {
  background: linear-gradient(135deg, rgba(0, 56, 168, 0.15) 0%, rgba(77, 139, 245, 0.08) 100%);
  border: 1px solid rgba(0, 56, 168, 0.3);
  border-radius: 20px;
  padding: clamp(32px, 4vw, 56px);
  text-align: center;
  margin-bottom: 3rem;
  position: relative;
  overflow: hidden;
}

.platform-free-offer::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 22px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light), var(--color-accent));
  z-index: -1;
  opacity: 0.3;
  animation: glowPulse 3s ease-in-out infinite;
}

@keyframes glowPulse {

  0%,
  100% {
    opacity: 0.2;
  }

  50% {
    opacity: 0.5;
  }
}

.free-offer-badge {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  padding: 6px 18px;
  border-radius: 50px;
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  margin-bottom: 1.5rem;
}

.free-offer-title {
  font-weight: 800;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  line-height: 1.4;
  margin-bottom: 1rem;
}

.free-offer-title span {
  background: linear-gradient(90deg, #4D8BF5, #8AB4F8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.free-offer-desc {
  font-size: 0.95rem;
  color: var(--color-text-dim);
  line-height: 1.7;
  max-width: 600px;
  margin: 0 auto 1.5rem;
}

.free-offer-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 36px;
  background: var(--color-accent);
  color: #fff;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.95rem;
  transition: all 0.4s var(--ease-out-expo);
}

.free-offer-cta:hover {
  background: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--color-primary-glow);
}

/* Platform Features */
.platform-features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.platform-feature {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: clamp(24px, 2.5vw, 32px);
  text-align: center;
  transition: all 0.4s var(--ease-out-expo);
}

.platform-feature:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
}

.platform-feature .feature-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.platform-feature h5 {
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 8px;
}

.platform-feature p {
  font-size: 0.85rem;
  color: var(--color-text-dim);
  line-height: 1.6;
}

/* ---- PORTFOLIO Section ---- */
#portfolio {
  background: var(--color-bg-alt);
}

/* Subtle gradient overlay for section depth */
#portfolio::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 50% at 90% 20%, rgba(0, 56, 168, 0.08) 0%, transparent 60%);
  pointer-events: none;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.portfolio-card {
  position: relative;
  aspect-ratio: 3/4;
  border-radius: 12px;
  overflow: hidden;
  background: var(--color-bg-card);
  cursor: pointer;
  border: 1px solid var(--color-border);
  transition: border-color 0.4s ease, box-shadow 0.4s ease;
}

.portfolio-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 12px 40px var(--color-accent-glow);
}

.portfolio-card .card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease-out-expo);
}

.portfolio-card:hover .card-image {
  transform: scale(1.05);
}

.portfolio-card .card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(5, 10, 24, 0.9) 0%, rgba(5, 10, 24, 0.2) 50%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
  transition: background 0.4s ease;
}

.portfolio-card:hover .card-overlay {
  background: linear-gradient(to top, rgba(5, 10, 24, 0.95) 0%, rgba(5, 10, 24, 0.35) 50%, transparent 100%);
}

.portfolio-card .card-category {
  font-family: var(--font-en);
  font-weight: 600;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent-light);
  margin-bottom: 8px;
}

.portfolio-card .card-title {
  font-weight: 700;
  font-size: 1.15rem;
  line-height: 1.4;
}

.portfolio-card .card-desc {
  font-size: 0.85rem;
  color: var(--color-text-dim);
  margin-top: 6px;
  line-height: 1.5;
}

.portfolio-more {
  display: flex;
  justify-content: center;
  margin-top: 3rem;
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border: 1px solid var(--color-border);
  border-radius: 50px;
  font-family: var(--font-en);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: all 0.4s var(--ease-out-expo);
}

.btn-outline:hover {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
  box-shadow: 0 6px 24px var(--color-primary-glow);
}

/* ---- BUSINESS Section ---- */
#business {
  background: var(--color-bg);
}

#business::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 40% at 10% 80%, rgba(0, 56, 168, 0.1) 0%, transparent 60%);
  pointer-events: none;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  overflow: hidden;
}

.service-item {
  background: var(--color-bg);
  padding: clamp(28px, 3vw, 48px);
  position: relative;
  transition: background 0.4s ease;
  cursor: default;
}

.service-item:hover {
  background: var(--color-surface);
}

.service-item .service-number {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 0.75rem;
  color: var(--color-accent-light);
  letter-spacing: 0.1em;
  margin-bottom: 1.2rem;
}

.service-item .service-name {
  font-weight: 700;
  font-size: clamp(1.05rem, 1.4vw, 1.25rem);
  margin-bottom: 0.7rem;
  line-height: 1.4;
}

.service-item .service-name-en {
  font-family: var(--font-en);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.service-item .service-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
  opacity: 0.7;
}

.service-item::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
  transition: all 0.5s var(--ease-out-expo);
  transform: translateX(-50%);
}

.service-item:hover::after {
  width: 60%;
}

/* ---- COLUMN Section ---- */
#column {
  background: var(--color-bg-alt);
}

.column-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.column-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: clamp(24px, 3vw, 40px) 0;
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
  transition: padding-left 0.4s var(--ease-out-expo);
}

.column-item:first-child {
  border-top: 1px solid var(--color-border);
}

.column-item:hover {
  padding-left: 20px;
}

.column-item .col-number {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--color-accent-light);
  min-width: 40px;
}

.column-item .col-content {
  flex: 1;
  margin-left: 2rem;
}

.column-item .col-title {
  font-weight: 700;
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  line-height: 1.5;
  transition: color 0.3s ease;
}

.column-item:hover .col-title {
  color: var(--color-accent-light);
}

.column-item .col-excerpt {
  font-size: 0.9rem;
  color: var(--color-text-dim);
  margin-top: 4px;
  line-height: 1.6;
}

.column-item .col-arrow {
  font-size: 1.5rem;
  color: var(--color-text-muted);
  transition: all 0.4s var(--ease-out-expo);
  margin-left: 2rem;
}

.column-item:hover .col-arrow {
  color: var(--color-accent-light);
  transform: translateX(6px);
}

/* ---- PARTNERS Section ---- */
#partners {
  background: var(--color-bg);
}

.partners-message {
  max-width: 600px;
  margin-bottom: 4rem;
}

.partners-logos {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 24px;
}

.partner-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 90px;
  background: var(--color-surface);
  border-radius: 12px;
  border: 1px solid var(--color-border);
  padding: 16px 24px;
  font-family: var(--font-kr);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--color-text-dim);
  letter-spacing: 0.02em;
  transition: all 0.4s var(--ease-out-expo);
  text-align: center;
}

.partner-logo:hover {
  background: var(--color-bg-card);
  border-color: var(--color-accent);
  color: var(--color-text);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px var(--color-accent-glow);
}

/* ---- CONTACT Section ---- */
#contact {
  background: var(--color-bg-alt);
}

#contact::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 50% 50% at 80% 30%, rgba(0, 56, 168, 0.08) 0%, transparent 60%);
  pointer-events: none;
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 6vw, 100px);
  align-items: start;
}

.contact-info {
  padding-top: 1rem;
}

.contact-info .contact-cta {
  font-weight: 800;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  line-height: 1.3;
  margin-bottom: 2rem;
}

.contact-info .contact-details {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 2rem;
}

.contact-info .detail-item {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-text-dim);
  font-size: 0.95rem;
  transition: color 0.3s ease;
}

.contact-info .detail-item:hover {
  color: var(--color-accent-light);
}

.contact-info .detail-item .detail-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  font-size: 1.1rem;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-dim);
  letter-spacing: 0.05em;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  color: var(--color-text);
  font-family: var(--font-kr);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.3s ease, background 0.3s ease, box-shadow 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
  background: rgba(0, 56, 168, 0.06);
  box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%234D8BF5' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.form-group select option {
  background: var(--color-bg);
  color: var(--color-text);
}

.btn-submit {
  padding: 16px 40px;
  background: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: 50px;
  font-family: var(--font-kr);
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.4s var(--ease-out-expo);
  align-self: flex-start;
}

.btn-submit:hover {
  background: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--color-primary-glow);
}

/* ---- FOOTER ---- */
.footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: 60px 0 40px;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 3rem;
  flex-wrap: wrap;
  gap: 2rem;
}

.footer-brand .footer-logo {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 2rem;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

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

.footer-brand .footer-tagline {
  color: var(--color-text-dim);
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 300px;
}

.footer-links {
  display: flex;
  gap: 3rem;
}

.footer-links a {
  font-family: var(--font-en);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-dim);
  transition: color 0.3s ease;
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-company {
  color: var(--color-text-muted);
  font-size: 0.8rem;
  line-height: 1.8;
}

.footer-copyright {
  font-family: var(--font-en);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
}

/* ---- FAQ Section ---- */
#faq {
  background: var(--color-bg);
}

.faq-list {
  max-width: 900px;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: 12px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color 0.3s ease;
}

.faq-item:hover,
.faq-item[open] {
  border-color: var(--color-accent);
}

.faq-question {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  font-weight: 700;
  font-size: 1rem;
  list-style: none;
  user-select: none;
  transition: background 0.3s ease;
}

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

.faq-question:hover {
  background: rgba(0, 56, 168, 0.05);
}

.faq-q-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--color-accent);
  color: #fff;
  border-radius: 6px;
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 0.8rem;
  flex-shrink: 0;
}

.faq-toggle {
  margin-left: auto;
  font-size: 1.4rem;
  color: var(--color-accent-light);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-item[open] .faq-toggle {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 24px 20px 68px;
  animation: faqSlideDown 0.3s ease;
}

@keyframes faqSlideDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.faq-answer p {
  font-size: 0.92rem;
  color: var(--color-text-dim);
  line-height: 1.8;
  margin-bottom: 0.5rem;
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

/* ---- Scroll Animations ---- */
.reveal {
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
}

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

.reveal-delay-1 {
  transition-delay: 0.1s;
}

.reveal-delay-2 {
  transition-delay: 0.2s;
}

.reveal-delay-3 {
  transition-delay: 0.3s;
}

.reveal-delay-4 {
  transition-delay: 0.4s;
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-wrapper {
    grid-template-columns: 1fr;
  }

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

  .about-layout {
    grid-template-columns: 1fr;
  }

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

  .team-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

@media (max-width: 768px) {
  :root {
    --nav-height: 60px;
  }

  section {
    padding: 80px 0;
  }

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

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

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-top {
    flex-direction: column;
  }

  .footer-links {
    flex-wrap: wrap;
    gap: 1.5rem;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

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

  .column-item .col-arrow {
    display: none;
  }

  .intro-brand {
    font-size: clamp(2rem, 10vw, 3.5rem);
  }

  .about-stats {
    grid-template-columns: 1fr 1fr;
  }

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

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

  .platform-title {
    flex-direction: column;
    gap: 4px;
  }
}

@media (max-width: 480px) {
  .partners-logos {
    grid-template-columns: 1fr 1fr;
  }
}

/* ---- Utility ---- */
.text-accent {
  color: var(--color-accent-light);
}

.text-dim {
  color: var(--color-text-dim);
}

.mt-1 {
  margin-top: 0.5rem;
}

.mt-2 {
  margin-top: 1rem;
}

.mt-3 {
  margin-top: 1.5rem;
}

.mt-4 {
  margin-top: 2rem;
}

.mb-2 {
  margin-bottom: 1rem;
}

.mb-4 {
  margin-bottom: 2rem;
}

/* ---- Contact Toast ---- */
.contact-toast {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 9999;
  padding: 16px 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-accent);
  border-radius: 12px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 8px 32px rgba(0, 56, 168, 0.25);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.contact-toast span {
  color: #22C55E;
  font-size: 1.2rem;
}