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

:root {
  --navy:      #080c20;
  --navy-mid:  #0d1230;
  --navy-light:#151d45;
  --green:     #00e5a0;
  --green-dim: #00b87a;
  --white:     #ffffff;
  --off-white: #e2eaf8;
  --gray:      #8a9bbf;
  --gray-light:#c5cfdf;
  --gold:      #ffd166;
  --font-display: 'Bebas Neue', sans-serif;
  --font-mono:    'Space Mono', monospace;
  --font-body:    'Noto Sans KR', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  background: var(--navy);
  color: var(--off-white);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--navy); }
::-webkit-scrollbar-thumb { background: var(--green); border-radius: 2px; }

/* ── NAV ── */
#nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 0 2rem;
  backdrop-filter: blur(16px);
  background: rgba(8, 12, 32, 0.85);
  border-bottom: 1px solid rgba(0, 229, 160, 0.12);
  transition: all 0.3s;
}
#nav.scrolled { border-bottom-color: rgba(0, 229, 160, 0.25); }
.nav-inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 2rem; letter-spacing: 3px;
  color: var(--green); text-decoration: none;
}
.nav-links {
  display: flex; list-style: none; gap: 2rem; align-items: center;
}
.nav-links a {
  color: var(--gray-light); text-decoration: none;
  font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 1px;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--green); }
.nav-cta {
  background: var(--green) !important; color: var(--navy) !important;
  padding: 0.4rem 1rem; border-radius: 2px; font-weight: 700 !important;
  transition: opacity 0.2s !important;
}
.nav-cta:hover { opacity: 0.85; }
.nav-hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.nav-hamburger span {
  display: block; width: 22px; height: 2px;
  background: var(--green); transition: all 0.3s;
}

/* ── HERO ── */
#hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(0,229,160,0.07) 0%, transparent 70%);
}
.grid-overlay {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0,229,160,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,229,160,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}
.glow {
  position: absolute; border-radius: 50%;
  filter: blur(80px); pointer-events: none;
}
.glow-1 { width: 500px; height: 500px; background: rgba(0,229,160,0.06); top: -100px; right: -100px; }
.glow-2 { width: 400px; height: 400px; background: rgba(0,100,255,0.05); bottom: 0; left: -100px; }
.glow-3 { width: 600px; height: 600px; background: rgba(0,229,160,0.08); top: 50%; left: 50%; transform: translate(-50%,-50%); }

.hero-content {
  position: relative; z-index: 2;
  text-align: center; padding: 7rem 2rem 4rem;
  max-width: 900px;
}
.hero-label {
  font-family: var(--font-mono); font-size: 0.72rem;
  letter-spacing: 4px; color: var(--green);
  margin-bottom: 1.5rem;
  animation: fadeUp 0.8s 0.1s both;
}
.hero-title {
  display: flex; flex-direction: column; align-items: center;
  gap: 0.3rem; margin-bottom: 0.5rem;
  animation: fadeUp 0.8s 0.2s both;
}
.hero-emc {
  font-family: var(--font-display);
  font-size: clamp(5rem, 18vw, 12rem);
  line-height: 0.85; letter-spacing: 8px;
  color: var(--green);
  text-shadow: 0 0 60px rgba(0,229,160,0.35);
}
.hero-sub {
  font-family: var(--font-mono); font-size: clamp(0.7rem, 2vw, 1rem);
  letter-spacing: 4px; color: var(--gray);
}
.hero-formula {
  font-family: 'Georgia', serif; font-style: italic;
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  color: var(--gray); letter-spacing: 4px;
  margin: 0.5rem 0 1.5rem;
  animation: fadeUp 0.8s 0.3s both;
}
.hero-tagline {
  font-size: clamp(1rem, 2.5vw, 1.4rem);
  color: var(--off-white); line-height: 1.5; margin-bottom: 2.5rem;
  animation: fadeUp 0.8s 0.4s both;
}
.hero-tagline strong { color: var(--white); }

.hero-stats {
  display: flex; align-items: center; justify-content: center;
  gap: 1.5rem; margin-bottom: 2.5rem; flex-wrap: wrap;
  animation: fadeUp 0.8s 0.5s both;
}
.stat { display: flex; flex-direction: column; align-items: center; }
.stat-num {
  font-family: var(--font-display); font-size: 2.5rem;
  color: var(--green); letter-spacing: 2px; line-height: 1;
}
.stat-num sup { font-size: 1.2rem; }
.stat-lbl {
  font-family: var(--font-mono); font-size: 0.65rem;
  color: var(--gray); letter-spacing: 2px; margin-top: 4px;
}
.stat-divider { width: 1px; height: 40px; background: rgba(0,229,160,0.2); }

.hero-btns {
  display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap;
  animation: fadeUp 0.8s 0.6s both;
}

.hero-scroll {
  position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%);
  font-family: var(--font-mono); font-size: 0.65rem;
  color: var(--gray); letter-spacing: 3px;
  animation: bounce 2s infinite;
}

/* ── BUTTONS ── */
.btn-primary {
  display: inline-block;
  background: var(--green); color: var(--navy);
  font-family: var(--font-mono); font-size: 0.8rem; font-weight: 700;
  letter-spacing: 2px; padding: 0.85rem 2rem;
  text-decoration: none; border-radius: 2px;
  transition: all 0.2s; border: none; cursor: pointer;
}
.btn-primary:hover { background: #00ffb3; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,229,160,0.3); }
.btn-primary.full { width: 100%; text-align: center; }
.btn-ghost {
  display: inline-block;
  background: transparent; color: var(--green);
  font-family: var(--font-mono); font-size: 0.8rem; font-weight: 700;
  letter-spacing: 2px; padding: 0.85rem 2rem;
  text-decoration: none; border-radius: 2px;
  border: 1px solid rgba(0,229,160,0.4);
  transition: all 0.2s;
}
.btn-ghost:hover { background: rgba(0,229,160,0.08); border-color: var(--green); }

/* ── SECTIONS ── */
section { padding: 7rem 0; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 2rem; }

.section-label {
  font-family: var(--font-mono); font-size: 0.7rem;
  letter-spacing: 5px; color: var(--green);
  margin-bottom: 1rem;
}
.section-title {
  font-family: var(--font-display); font-size: clamp(2.5rem, 6vw, 4rem);
  letter-spacing: 3px; color: var(--white); margin-bottom: 1rem;
  line-height: 1;
}
.section-title.light { color: var(--white); }
.section-desc {
  font-size: 1rem; color: var(--gray); line-height: 1.7;
  max-width: 620px; margin-bottom: 3.5rem;
}
.section-desc.light { color: var(--gray-light); }

/* ── ABOUT GRID ── */
.about-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem; margin-top: 3rem;
}
.about-card {
  background: var(--navy-light);
  border: 1px solid rgba(0,229,160,0.1);
  border-left: 3px solid var(--green);
  padding: 2rem 1.5rem;
  border-radius: 4px;
  transition: all 0.3s;
}
.about-card:hover { transform: translateY(-4px); border-color: rgba(0,229,160,0.3); box-shadow: 0 12px 32px rgba(0,0,0,0.3); }
.card-icon { font-size: 2rem; margin-bottom: 1rem; }
.about-card h3 { font-size: 1rem; font-weight: 700; color: var(--green); margin-bottom: 0.6rem; }
.about-card p { font-size: 0.9rem; color: var(--gray); line-height: 1.6; }

/* ── EVENT ── */
#event {
  position: relative;
}
.event-bg {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, var(--navy) 0%, var(--navy-mid) 50%, var(--navy) 100%);
  z-index: 0;
}
#event .container { position: relative; z-index: 1; }

.route-wrap { margin: 3rem 0; overflow-x: auto; }
.route-steps {
  display: flex; align-items: center; justify-content: center;
  gap: 1rem; min-width: 600px; padding: 2rem 0;
}
.route-step { display: flex; flex-direction: column; align-items: center; gap: 1rem; flex: 1; max-width: 200px; }
.route-dot {
  width: 52px; height: 52px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-size: 1.4rem;
  background: var(--navy-light); border: 2px solid var(--green);
  color: var(--green); flex-shrink: 0;
}
.route-step.highlight .route-dot {
  background: var(--green); color: var(--navy); font-size: 1.2rem;
}
.route-card {
  background: var(--navy-light); border: 1px solid rgba(0,229,160,0.15);
  padding: 1.2rem; border-radius: 4px; text-align: center; width: 100%;
}
.route-step.highlight .route-card {
  border-color: var(--green); background: rgba(0,229,160,0.07);
}
.route-card h4 { color: var(--green); font-size: 0.95rem; margin-bottom: 0.5rem; }
.route-card p { font-size: 0.82rem; color: var(--gray); line-height: 1.6; }
.route-arrow {
  font-size: 1.8rem; color: var(--green); flex-shrink: 0;
  opacity: 0.6;
}
.route-line { display: none; }

.guinness-box {
  background: var(--navy-light); border: 1px solid rgba(0,229,160,0.2);
  border-radius: 4px; padding: 2.5rem; text-align: center; margin-top: 2rem;
}
.guinness-record {
  display: flex; align-items: center; justify-content: center;
  gap: 3rem; flex-wrap: wrap; margin-bottom: 1.5rem;
}
.record-item { display: flex; flex-direction: column; gap: 0.3rem; }
.record-num { font-family: var(--font-display); font-size: 3.5rem; color: var(--gray); line-height: 1; }
.record-num sup { font-size: 1.5rem; }
.record-item.target .record-num { color: var(--green); text-shadow: 0 0 30px rgba(0,229,160,0.4); }
.record-lbl { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 2px; color: var(--gray); }
.record-vs { font-family: var(--font-display); font-size: 2rem; color: var(--gray); opacity: 0.4; }
.guinness-note { font-size: 0.9rem; color: var(--gray); font-style: italic; }

/* ── ROADMAP ── */
.timeline { margin-top: 3rem; position: relative; }
.timeline::before {
  content: ''; position: absolute; left: 120px; top: 0; bottom: 0;
  width: 2px; background: linear-gradient(180deg, var(--green) 0%, rgba(0,229,160,0.1) 100%);
}
.tl-item {
  display: grid; grid-template-columns: 120px 24px 1fr;
  gap: 0 2rem; margin-bottom: 2.5rem; align-items: start;
}
.tl-year {
  font-family: var(--font-display); font-size: 1.6rem;
  color: var(--gray); letter-spacing: 2px; line-height: 1.1;
  text-align: right; padding-top: 4px;
}
.tl-year small { display: block; font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 3px; color: var(--gray); opacity: 0.6; }
.tl-item.highlight .tl-year { color: var(--green); }
.tl-dot {
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--navy-light); border: 2px solid var(--green);
  margin-top: 6px; flex-shrink: 0; position: relative;
}
.tl-item.highlight .tl-dot { background: var(--green); box-shadow: 0 0 16px rgba(0,229,160,0.5); }
.tl-content {
  background: var(--navy-light); border: 1px solid rgba(0,229,160,0.1);
  border-radius: 4px; padding: 1.5rem;
}
.tl-item.highlight .tl-content { border-color: rgba(0,229,160,0.3); background: rgba(0,229,160,0.05); }
.tl-content h4 { color: var(--green); font-size: 1rem; margin-bottom: 0.8rem; }
.tl-content ul { list-style: none; display: flex; flex-direction: column; gap: 0.3rem; }
.tl-content li {
  font-size: 0.88rem; color: var(--gray-light); padding-left: 1rem; position: relative;
}
.tl-content li::before { content: '·'; position: absolute; left: 0; color: var(--green); }

/* ── WHY KOREA ── */
.why-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem; margin-top: 3rem;
}
.why-item {
  background: var(--navy-light); border: 1px solid rgba(0,229,160,0.08);
  border-top: 3px solid rgba(0,229,160,0.3);
  padding: 1.8rem; border-radius: 4px; transition: all 0.3s;
}
.why-item:hover { border-top-color: var(--green); transform: translateY(-3px); }
.why-icon { font-size: 1.8rem; display: block; margin-bottom: 0.8rem; }
.why-item h4 { font-size: 0.95rem; font-weight: 700; color: var(--white); margin-bottom: 0.4rem; }
.why-item p { font-size: 0.85rem; color: var(--gray); line-height: 1.6; }

/* ── FOUNDER ── */
#founder { background: var(--navy-mid); }
.founder-wrap {
  display: flex; gap: 3rem; align-items: flex-start; flex-wrap: wrap;
}
.founder-avatar {
  width: 120px; height: 120px; border-radius: 50%;
  background: var(--navy-light); border: 3px solid var(--green);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-size: 2.5rem; color: var(--green);
  flex-shrink: 0; box-shadow: 0 0 40px rgba(0,229,160,0.2);
}
.founder-info { flex: 1; min-width: 280px; }
.founder-name { font-size: 1.8rem; font-weight: 900; color: var(--white); margin-bottom: 0.3rem; }
.founder-kr { font-weight: 300; color: var(--gray); margin-left: 0.5rem; font-size: 1.2rem; }
.founder-title { font-family: var(--font-mono); font-size: 0.75rem; color: var(--green); letter-spacing: 2px; margin-bottom: 1.5rem; }
.founder-creds { display: flex; flex-direction: column; gap: 0.6rem; margin-bottom: 1.8rem; }
.cred { display: flex; align-items: center; gap: 0.7rem; }
.cred-icon { font-size: 1.1rem; flex-shrink: 0; }
.cred span:last-child { font-size: 0.92rem; color: var(--off-white); }
.founder-quote {
  border-left: 3px solid var(--green); padding-left: 1.2rem;
  font-style: italic; color: var(--gray-light); font-size: 0.95rem; line-height: 1.7;
}

/* ── CONTACT ── */
#contact { position: relative; overflow: hidden; }
#contact .container { position: relative; z-index: 1; }
.contact-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem; margin-bottom: 3rem;
}
.contact-card {
  background: var(--navy-light); border: 1px solid rgba(0,229,160,0.1);
  padding: 1.5rem; border-radius: 4px; text-align: center; transition: all 0.3s;
}
.contact-card:hover { border-color: var(--green); transform: translateY(-2px); }
.contact-icon { font-size: 1.8rem; margin-bottom: 0.6rem; }
.contact-card h4 { font-size: 0.92rem; color: var(--white); margin-bottom: 0.3rem; }
.contact-card p { font-size: 0.8rem; color: var(--gray); }

.contact-form-wrap { max-width: 600px; margin: 0 auto; }
.contact-form { display: flex; flex-direction: column; gap: 1rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.contact-form input,
.contact-form select,
.contact-form textarea {
  background: var(--navy-light); border: 1px solid rgba(0,229,160,0.15);
  color: var(--white); font-family: var(--font-body); font-size: 0.9rem;
  padding: 0.85rem 1rem; border-radius: 2px; outline: none;
  transition: border-color 0.2s; width: 100%;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus { border-color: var(--green); }
.contact-form input::placeholder,
.contact-form textarea::placeholder { color: var(--gray); }
.contact-form select option { background: var(--navy-mid); }
.contact-form textarea { resize: vertical; min-height: 100px; }

/* ── FOOTER ── */
footer {
  border-top: 1px solid rgba(0,229,160,0.12);
  padding: 3rem 2rem;
}
.footer-inner { max-width: 1100px; margin: 0 auto; text-align: center; }
.footer-logo {
  font-family: var(--font-display); font-size: 3rem;
  letter-spacing: 6px; color: var(--green); margin-bottom: 0.5rem;
}
.footer-formula {
  font-family: 'Georgia', serif; font-style: italic;
  font-size: 1.2rem; color: var(--gray); margin-bottom: 1rem; letter-spacing: 3px;
}
.footer-copy { font-size: 0.8rem; color: var(--gray); line-height: 1.8; }

/* ── PARTICLES ── */
.particles {
  position: absolute; inset: 0; pointer-events: none;
}
.particle {
  position: absolute; border-radius: 50%;
  background: var(--green); opacity: 0;
  animation: float var(--dur) var(--delay) infinite;
}

/* ── ANIMATIONS ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(8px); }
}
@keyframes float {
  0%   { opacity: 0; transform: translateY(0) scale(0); }
  10%  { opacity: 0.6; }
  90%  { opacity: 0.1; }
  100% { opacity: 0; transform: translateY(-120px) scale(0.5); }
}

/* reveal */
[data-reveal] { opacity: 0; transform: translateY(24px); transition: opacity 0.6s, transform 0.6s; }
[data-reveal].visible { opacity: 1; transform: none; }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .nav-links.open {
    display: flex; flex-direction: column;
    position: absolute; top: 64px; left: 0; right: 0;
    background: var(--navy-mid); padding: 1.5rem 2rem; gap: 1rem;
    border-bottom: 1px solid rgba(0,229,160,0.15);
  }
  .timeline::before { left: 60px; }
  .tl-item { grid-template-columns: 60px 20px 1fr; gap: 0 1rem; }
  .tl-year { font-size: 1rem; }
  .form-row { grid-template-columns: 1fr; }
  .founder-wrap { flex-direction: column; align-items: center; text-align: center; }
  .founder-quote { text-align: left; }
}

/* ── LANG BAR ── */
#lang-bar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  background: rgba(5, 8, 20, 0.95);
  border-bottom: 1px solid rgba(0,229,160,0.15);
  padding: 0 1rem;
}
.lang-inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; gap: 0.4rem; padding: 0.35rem 0;
  overflow-x: auto; scrollbar-width: none;
}
.lang-inner::-webkit-scrollbar { display: none; }
.lang-btn {
  background: transparent; border: 1px solid rgba(0,229,160,0.15);
  color: var(--gray); font-family: var(--font-mono); font-size: 0.68rem;
  letter-spacing: 1px; padding: 0.25rem 0.6rem; border-radius: 2px;
  cursor: pointer; white-space: nowrap; transition: all 0.2s;
  flex-shrink: 0;
}
.lang-btn:hover { border-color: var(--green); color: var(--green); }
.lang-btn.active {
  background: var(--green); border-color: var(--green);
  color: var(--navy); font-weight: 700;
}

/* Offset nav for lang bar */
#nav { top: 34px; }
#hero { padding-top: 34px; }