/* ============================================================
   MYCOINSOFT — Design tokens
   Palette: deep ledger-navy background, circuit-teal + bullion-gold accents
   Type: Pretendard (KR/body) + Space Grotesk (display numerals/eyebrows)
   Signature: horizontal "ledger tape" — a continuously scrolling record of
   milestones, and node-and-line connectors echoing a block chain.
============================================================ */

@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/variable/pretendardvariable-dynamic-subset.css');
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
  --bg: #F6D96C;
  --bg-alt: #FFFBF0;
  --bg-deep: #EFC950;
  --bg-soft: #FFFBF0; /* kept for backward-compat, same as bg-alt */
  --panel: #FFFFFF;
  --panel-glass: rgba(255, 255, 255, 0.5);
  --panel-glass-border: rgba(255, 255, 255, 0.8);
  --line: rgba(35, 26, 4, 0.14);

  --teal: #0E8C77;
  --teal-dim: #6FB8A6;
  --gold: #8A5F27;
  --gold-soft: #C9A15A;

  --text: #221B0F;
  --text-mute: #6B6350;
  --text-faint: #8C7F55;

  --danger: #C94A41;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;

  --font-kr: 'PretendardVariable', 'Pretendard', -apple-system, sans-serif;
  --font-display: 'Space Grotesk', var(--font-kr);

  --max-w: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; overflow-x: hidden; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-kr);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

button { font-family: inherit; cursor: pointer; }

:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
}

.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 28px;
}

.eyebrow {
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--teal);
  margin: 0 0 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.eyebrow::before {
  content: '';
  width: 18px;
  height: 1px;
  background: var(--teal-dim);
  display: inline-block;
}

h1, h2, h3 { font-weight: 700; margin: 0; letter-spacing: -0.01em; }

.section-title {
  font-size: clamp(28px, 3.4vw, 40px);
  line-height: 1.25;
  margin-bottom: 16px;
}

.section-desc {
  color: var(--text-mute);
  font-size: 16px;
  max-width: 640px;
  margin: 0 0 48px;
}

section { position: relative; }

/* ---------------- Nav ---------------- */

.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(246, 217, 108, 0.8);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.site-nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand .dot { color: var(--teal); }

.nav-links {
  display: flex;
  gap: 30px;
  list-style: none;
  margin: 0; padding: 0;
}

.nav-links a {
  font-size: 14.5px;
  color: var(--text-mute);
  transition: color 0.2s;
}

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

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 22px;
}

@media (max-width: 860px) {
  .site-nav { position: relative; }

  .nav-links {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 16px 30px -20px rgba(60, 40, 10, 0.4);
    max-height: calc(100vh - 68px);
    overflow-y: auto;
  }

  .nav-links.open { display: flex; }

  .nav-links li { width: 100%; }

  .nav-links a {
    display: block;
    padding: 15px 28px;
    border-bottom: 1px solid var(--line);
  }

  .nav-toggle { display: block; }
}

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

.hero {
  padding: 168px 0 120px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(120deg, #F6D96C, #FCE9AE, #BFE4D8, #F0C875, #F6D96C);
  background-size: 400% 400%;
  animation: hero-gradient-shift 20s ease infinite;
}

@keyframes hero-gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 700px 420px at 82% 8%, rgba(14, 140, 119, 0.12), transparent 60%),
    radial-gradient(ellipse 600px 500px at 10% 90%, rgba(150, 101, 42, 0.09), transparent 65%);
  pointer-events: none;
}

.hero-grid {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
}

.hero-kicker {
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 22px;
}

.hero h1 {
  font-size: clamp(34px, 4.6vw, 54px);
  line-height: 1.22;
  margin-bottom: 22px;
  max-width: 760px;
}

.hero h1 em {
  font-style: normal;
  background: linear-gradient(100deg, var(--teal), #8ff0dc);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p {
  color: var(--text-mute);
  font-size: 17px;
  max-width: 560px;
  margin: 0 auto 34px;
}

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 100px;
  font-size: 14.5px;
  font-weight: 600;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}

.btn-primary {
  background: var(--teal);
  color: #FBF3DA;
}

.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 30px -8px rgba(14, 140, 119, 0.5); }

.btn-ghost {
  border: 1px solid var(--line);
  color: var(--text);
}

.btn-ghost:hover { border-color: var(--teal-dim); transform: translateY(-2px); }

.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 56px;
  flex-wrap: wrap;
  justify-content: center;
}

.hero-stat { text-align: center; }

.hero-stat b {
  font-family: var(--font-display);
  font-size: 30px;
  display: block;
  color: var(--text);
}

.hero-stat span {
  font-size: 13px;
  color: var(--text-faint);
}

@media (prefers-reduced-motion: reduce) {
  .hero { animation: none; }
}

/* ---------------- Introduction / ledger tape ---------------- */

.intro { padding: 110px 0 90px; border-top: 1px solid var(--line); background: var(--bg-alt); }

.ledger-tape {
  margin-top: 20px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 20px 0;
  overflow: hidden;
  position: relative;
}

.ledger-tape::before, .ledger-tape::after {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  width: 90px;
  z-index: 2;
  pointer-events: none;
}
.ledger-tape::before { left: 0; background: linear-gradient(90deg, var(--bg-alt), transparent); }
.ledger-tape::after { right: 0; background: linear-gradient(-90deg, var(--bg-alt), transparent); }

.ledger-track {
  display: flex;
  gap: 0;
  width: max-content;
  animation: ledger-scroll 46s linear infinite;
}

.ledger-track:hover { animation-play-state: paused; }

@keyframes ledger-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.ledger-item {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 0 30px;
  border-right: 1px solid var(--line);
  white-space: nowrap;
}

.ledger-item .yr {
  font-family: var(--font-display);
  font-size: 17px;
  color: var(--gold);
  font-weight: 600;
}

.ledger-item .ev { font-size: 13px; color: var(--text-mute); }

.intro-metrics {
  margin-top: 64px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.metric-card {
  background: var(--bg-soft);
  padding: 32px 30px;
}

.metric-card b {
  font-family: var(--font-display);
  font-size: 36px;
  display: block;
  color: var(--teal);
  margin-bottom: 6px;
}

.metric-card span { font-size: 14px; color: var(--text-mute); }

@media (max-width: 720px) {
  .intro-metrics { grid-template-columns: 1fr; }
}

/* ---------------- A.I. section — glassmorphism ---------------- */

.ai-section {
  padding: 120px 0;
  position: relative;
  background:
    radial-gradient(circle at 12% 15%, rgba(14,140,119,0.55), transparent 42%),
    radial-gradient(circle at 88% 12%, rgba(224,140,42,0.6), transparent 46%),
    radial-gradient(circle at 50% 95%, rgba(138,95,39,0.55), transparent 55%),
    linear-gradient(155deg, #EFC155 0%, #E2A23F 45%, #CE7C3A 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.ai-section::before {
  content: '';
  position: absolute;
  width: 620px; height: 620px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(14,140,119,0.38), transparent 68%);
  top: -220px; right: -160px;
  filter: blur(30px);
}

.ai-section::after {
  content: '';
  position: absolute;
  width: 520px; height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,0.35), transparent 70%);
  bottom: -220px; left: -140px;
  filter: blur(30px);
}

.ai-head {
  max-width: 640px;
  position: relative;
}

.ai-section .section-desc,
.ai-section .glass-card p,
.ai-section .glass-eta {
  color: rgba(34, 24, 8, 0.72);
}

.ai-section .eyebrow {
  color: #0B5E4F;
}
.ai-section .eyebrow::before { background: rgba(11, 94, 79, 0.5); }

.ai-grid {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  position: relative;
}

.glass-card {
  background: var(--panel-glass);
  border: 1px solid var(--panel-glass-border);
  backdrop-filter: blur(22px) saturate(140%);
  -webkit-backdrop-filter: blur(22px) saturate(140%);
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow:
    0 20px 44px -20px rgba(60, 40, 10, 0.45),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
}

.glass-card:hover {
  transform: translateY(-6px);
  border-color: rgba(14, 140, 119, 0.5);
  background: rgba(255, 255, 255, 0.78);
  box-shadow:
    0 26px 50px -18px rgba(60, 40, 10, 0.5),
    inset 0 1px 0 rgba(255, 255, 255, 0.95);
}

.glass-icon {
  width: 46px; height: 46px;
  border-radius: 13px;
  background: linear-gradient(145deg, rgba(14,140,119,0.22), rgba(14,140,119,0.04));
  border: 1px solid rgba(14,140,119,0.3);
  display: flex; align-items: center; justify-content: center;
  color: var(--teal);
}

.glass-card h3 { font-size: 18px; margin-bottom: 2px; }

.glass-card p {
  font-size: 14px;
  color: var(--text-mute);
  margin: 0;
  flex-grow: 1;
}

.glass-price {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--panel-glass-border);
  font-size: 13.5px;
  color: var(--text);
  line-height: 1.9;
}

.glass-price b {
  color: #0B5E4F;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.glass-eta {
  font-size: 12px;
  color: var(--text-faint);
}

@media (max-width: 1020px) {
  .ai-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .ai-grid { grid-template-columns: 1fr; }
}

.ai-cta {
  margin-top: 48px;
  padding: 26px 30px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--panel-glass-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.ai-cta span {
  font-size: 15.5px;
  font-weight: 600;
  color: var(--text);
}

/* ---------------- Service section ---------------- */

.service-section { padding: 110px 0; background: var(--bg-alt); }

.service-grid {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  position: relative;
  transition: border-color 0.25s, transform 0.25s;
}

.service-card:hover { border-color: var(--gold-soft); transform: translateY(-4px); }

.service-num {
  font-family: var(--font-display);
  font-size: 13px;
  color: var(--text-faint);
  margin-bottom: 18px;
  letter-spacing: 0.08em;
}

.service-card h3 {
  font-size: 19px;
  margin-bottom: 14px;
}

.service-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.service-card li {
  font-size: 14px;
  color: var(--text-mute);
  padding-left: 16px;
  position: relative;
}

.service-card li::before {
  content: '';
  position: absolute;
  left: 0; top: 7px;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--gold);
}

@media (max-width: 900px) {
  .service-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .service-grid { grid-template-columns: 1fr; }
}

/* ---------------- Exchange teaser (on homepage) ---------------- */

.exchange-teaser {
  padding: 100px 0;
  border-top: 1px solid var(--line);
  text-align: center;
  background: var(--bg);
}

.exchange-teaser .panel {
  background: rgba(255, 253, 244, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: 0 20px 44px -24px rgba(60, 40, 10, 0.35);
  border-radius: var(--radius-lg);
  padding: 64px 40px;
}

.exchange-teaser h2 { font-size: clamp(24px, 3vw, 34px); margin-bottom: 14px; }
.exchange-teaser p { color: var(--text-mute); max-width: 520px; margin: 0 auto 30px; }

/* ---------------- Contact (문의하기) ---------------- */

.contact-section {
  padding: 110px 0;
  background: var(--bg-alt);
  border-top: 1px solid var(--line);
}

.contact-layout {
  margin-top: 48px;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 28px;
  align-items: start;
}

.contact-direct {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-direct-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  transition: border-color 0.2s, transform 0.2s;
}

.contact-direct-item:hover { border-color: var(--teal-dim); transform: translateY(-2px); }

.contact-direct-item .icon-circle {
  width: 42px; height: 42px;
  border-radius: 50%;
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  background: rgba(14, 140, 119, 0.12);
  color: var(--teal);
}

.contact-direct-item .lbl { font-size: 12.5px; color: var(--text-faint); }
.contact-direct-item .val { font-size: 15.5px; font-weight: 700; color: var(--text); }

.contact-form-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 34px 32px;
}

.contact-form-title {
  font-size: 19px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 22px;
}

.contact-form-card .form-row { margin-bottom: 16px; }
.contact-form-card .form-row label {
  display: block;
  font-size: 13px;
  color: var(--text-mute);
  margin-bottom: 7px;
}
.contact-form-card .form-row input,
.contact-form-card .form-row textarea {
  width: 100%;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
}
.contact-form-card .form-row input:focus,
.contact-form-card .form-row textarea:focus { border-color: var(--teal-dim); }
.contact-form-card .form-row textarea { min-height: 110px; resize: vertical; }
.contact-form-card .form-two { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.contact-submit {
  width: 100%;
  padding: 14px;
  border-radius: 100px;
  background: var(--teal);
  color: #FBF3DA;
  font-weight: 700;
  font-size: 15px;
  border: none;
  margin-top: 4px;
}
.contact-submit:hover { filter: brightness(1.06); }
.contact-submit:disabled { opacity: 0.55; cursor: default; }

.contact-status { margin-top: 14px; font-size: 13.5px; text-align: center; }
.contact-status.ok { color: var(--teal); }
.contact-status.err { color: var(--danger); }

@media (max-width: 860px) {
  .contact-layout { grid-template-columns: 1fr; }
}

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

.site-footer {
  padding: 90px 0 40px;
  border-top: 1px solid var(--line);
  background: var(--bg-deep);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  padding-bottom: 60px;
}

.footer-brand .brand { margin-bottom: 16px; }
.footer-brand p { color: rgba(34, 24, 8, 0.68); font-size: 14px; max-width: 380px; }

.footer-info {
  margin-top: 24px;
  font-size: 13.5px;
  color: rgba(34, 24, 8, 0.6);
  line-height: 1.9;
}

.contact-buttons {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.contact-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 13px 20px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 700;
  text-align: center;
  transition: transform 0.2s, filter 0.2s;
}

.contact-btn:hover { transform: translateY(-2px); filter: brightness(1.04); }

.contact-btn.kakao { background: #FEE500; color: #391B1B; }
.contact-btn.telegram { background: #29A9EA; color: #FFFFFF; }

.newsletter-block {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.newsletter-desc {
  font-size: 13px;
  color: rgba(34, 24, 8, 0.6);
  margin: 8px 0 14px;
  max-width: 340px;
}

.newsletter-form {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.newsletter-form input {
  flex: 1 1 180px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 100px;
  padding: 11px 16px;
  font-size: 13.5px;
  color: var(--text);
  font-family: inherit;
}

.newsletter-form input:focus { border-color: var(--teal-dim); }

.newsletter-form button {
  background: var(--teal);
  color: #FBF3DA;
  border: none;
  padding: 11px 22px;
  border-radius: 100px;
  font-size: 13.5px;
  font-weight: 700;
}

.newsletter-form button:hover { filter: brightness(1.06); }
.newsletter-form button:disabled { opacity: 0.6; cursor: default; }

.newsletter-status {
  margin-top: 10px;
  font-size: 12.5px;
}
.newsletter-status.ok { color: var(--teal); }
.newsletter-status.err { color: var(--danger); }

@media (max-width: 760px) {
  .footer-top { grid-template-columns: 1fr; gap: 40px; }
}

.footer-bottom {
  border-top: 1px solid var(--line);
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12.5px;
  color: rgba(34, 24, 8, 0.55);
}

.footer-legal { display: flex; gap: 18px; flex-wrap: wrap; }

/* ---------------- Utility: reveal-on-scroll ---------------- */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.in-view { opacity: 1; transform: translateY(0); }