/* =====================================================================
   간다GO — Components & Layout (Premium overlays over token base)
   ===================================================================== */

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--color-text);
  background: var(--color-bg);
  background-image: var(--gradient-bg);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  word-break: keep-all;
  overflow-wrap: anywhere;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

:focus-visible {
  outline: 3px solid var(--color-ring);
  outline-offset: 2px;
  border-radius: var(--radius-xs);
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: 200;
  background: var(--color-accent);
  color: var(--color-text-on-accent);
  padding: var(--space-2) var(--space-4);
  border-radius: 0 0 var(--radius-sm) 0;
  font-weight: 700;
}
.skip-link:focus { left: 0; }

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-5);
}
.container--narrow { max-width: var(--container-narrow); }

.section { padding-block: var(--space-20); }
.section--tight { padding-block: var(--space-12); }

/* ---- Typography helpers -------------------------------------------- */
h1, h2, h3, h4 { line-height: var(--lh-tight); font-weight: 800; letter-spacing: -0.01em; }
h2 { font-size: var(--fs-h2); margin: 0 0 var(--space-4); }
h3 { font-size: var(--fs-h3); margin: 0 0 var(--space-3); }
p { margin: 0 0 var(--space-4); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent-soft);
}
.section-head { text-align: center; max-width: 720px; margin: 0 auto var(--space-10); }
.section-head p { color: var(--color-text-muted); margin-top: var(--space-3); }
.text-accent { color: var(--color-accent-soft); }
.text-muted { color: var(--color-text-muted); }

/* ---- Buttons ------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: inherit;
  font-weight: 700;
  font-size: var(--fs-sm);
  line-height: 1;
  padding: 14px 22px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease),
    background var(--dur) var(--ease), border-color var(--dur) var(--ease);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--accent {
  background: var(--gradient-accent);
  color: var(--color-text-on-accent);
  box-shadow: var(--glow-accent);
}
.btn--accent:hover { background: var(--gradient-accent-hover); }

.btn--ghost {
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--color-border-strong);
  color: var(--color-text);
}
.btn--ghost:hover { border-color: var(--color-ring); background: rgba(255, 122, 24, 0.08); }

.btn--outline-accent {
  background: transparent;
  border-color: var(--color-accent);
  color: var(--color-accent-soft);
}
.btn--outline-accent:hover { background: rgba(255, 122, 24, 0.1); }

.btn--lg { padding: 17px 30px; font-size: var(--fs-body); }
.btn--block { width: 100%; }

/* ---- Cards (premium overlay: gold hairline + inner glow) ----------- */
.card {
  position: relative;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0)) ,
    var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
  overflow: clip;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(160deg, var(--color-gold-soft), transparent 40%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
  pointer-events: none;
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-md);
}
.card:hover::before { opacity: 1; }

.card--accent {
  background:
    radial-gradient(120% 90% at 50% -10%, rgba(255, 122, 24, 0.22), transparent 60%),
    var(--color-surface-2);
  border-color: var(--color-accent);
  box-shadow: var(--glow-accent);
}

.card__title { font-size: var(--fs-h3); font-weight: 800; margin: 0 0 var(--space-2); }
.card__body { color: var(--color-text-muted); font-size: var(--fs-sm); margin: 0; }

/* Link cards (region / program grids) */
.linkcard {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: var(--space-4) var(--space-5);
}
.linkcard .name { font-weight: 700; font-size: 1.02rem; }
.linkcard .name::after {
  content: " →";
  color: var(--color-accent-soft);
  opacity: 0;
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.linkcard:hover .name::after { opacity: 1; }
.linkcard .meta { font-size: var(--fs-xs); color: var(--color-text-muted); }

/* Grid utilities */
.grid { display: grid; gap: var(--space-4); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.grid--auto { grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); }
@media (max-width: 900px) {
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .grid--2, .grid--3, .grid--4, .grid--auto { grid-template-columns: 1fr; }
}

/* ---- Header / Nav -------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: saturate(150%) blur(14px);
  background: var(--color-overlay);
  border-bottom: 1px solid var(--color-border);
}
.nav {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 900; font-size: 1.25rem; letter-spacing: -0.02em; white-space: nowrap; }
.brand .go { color: var(--color-accent-soft); }
.brand__mark {
  width: 30px; height: 30px; border-radius: 9px;
  background: var(--gradient-accent);
  display: grid; place-items: center;
  color: var(--color-text-on-accent);
  font-weight: 900; font-size: 0.9rem;
  box-shadow: var(--glow-accent);
}

.nav-menu { display: flex; align-items: center; gap: 2px; }
.nav-menu > li { position: relative; }
.nav-link {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 10px 14px; border-radius: var(--radius-sm);
  font-weight: 600; font-size: 0.95rem; color: var(--color-text-soft);
  white-space: nowrap;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.nav-link:hover, .has-dd:hover .nav-link { color: var(--color-text); background: rgba(255,255,255,0.05); }

.dropdown {
  position: absolute; top: calc(100% + 8px); left: 0;
  min-width: 220px; padding: var(--space-2);
  background: var(--color-elevated);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  opacity: 0; visibility: hidden; transform: translateY(6px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease), visibility var(--dur);
}
.has-dd:hover .dropdown, .has-dd:focus-within .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown a {
  display: block; padding: 9px 12px; border-radius: var(--radius-sm);
  font-size: 0.92rem; color: var(--color-text-soft);
}
.dropdown a:hover { background: rgba(255,122,24,0.1); color: var(--color-text); }

.nav-cta { display: flex; align-items: center; gap: var(--space-2); }
.nav-toggle { display: none; }
/* Mobile panel is hidden on desktop; the mobile media query reveals it. */
.mobile-panel { display: none; }

@media (max-width: 980px) {
  .nav-menu, .nav-cta .btn--desktop { display: none; }
  .nav-toggle {
    display: inline-grid; place-items: center;
    width: 44px; height: 44px; border-radius: var(--radius-sm);
    background: rgba(255,255,255,0.05); border: 1px solid var(--color-border-strong);
    color: var(--color-text); cursor: pointer;
  }
  .mobile-panel {
    display: block;
    position: fixed; inset: var(--header-h) 0 0 0; z-index: 99;
    background: var(--color-bg-2); background-image: var(--gradient-bg);
    padding: var(--space-6) var(--space-5) calc(var(--space-20) + 60px);
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform var(--dur) var(--ease);
  }
  .mobile-panel.open { transform: translateX(0); }
  .mobile-panel details {
    border-bottom: 1px solid var(--color-border);
  }
  .mobile-panel summary {
    list-style: none; cursor: pointer;
    padding: 14px 4px; font-weight: 700; font-size: 1.05rem;
    display: flex; justify-content: space-between; align-items: center;
  }
  .mobile-panel summary::-webkit-details-marker { display: none; }
  .mobile-panel summary::after { content: "+"; color: var(--color-accent-soft); font-size: 1.4rem; }
  .mobile-panel details[open] summary::after { content: "–"; }
  .mobile-panel .sub a { display: block; padding: 10px 4px; color: var(--color-text-muted); }
}

/* ---- Hero ---------------------------------------------------------- */
.hero { position: relative; padding-block: var(--space-24) var(--space-16); }
.hero__inner { max-width: 860px; }
.hero h1 { font-size: var(--fs-hero); margin: var(--space-4) 0; }
.hero p.lead { font-size: 1.14rem; color: var(--color-text-soft); max-width: 680px; }
.hero__cta { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-8); }
.hero__badges { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-top: var(--space-6); }
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 13px; border-radius: var(--radius-pill);
  background: rgba(255,255,255,0.04); border: 1px solid var(--color-border);
  font-size: var(--fs-xs); color: var(--color-text-soft);
}

/* ---- 16:9 hero image band ------------------------------------------ */
.hero-media-wrap { padding-block: var(--space-2) var(--space-6); }
.hero-media {
  margin: 0;
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border-strong);
  box-shadow: var(--shadow-md);
  /* branded placeholder shown before the image is uploaded */
  background:
    radial-gradient(120% 120% at 82% -10%, rgba(255, 122, 24, 0.28), transparent 55%),
    var(--gradient-bg), var(--color-surface-2);
}
.hero-media::after {
  content: "16:9 대표 이미지";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--color-text-faint);
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: 0.04em;
}
.hero-media img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
/* When the image loads it covers ::after; if it fails, .is-empty keeps the label */

/* ---- Content prose (region/program article bodies) ----------------- */
.prose { max-width: var(--container-narrow); margin-inline: auto; }
.prose h2 {
  margin-top: var(--space-12); padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}
.prose h2:first-of-type { border-top: 0; margin-top: var(--space-6); }
.prose p, .prose li { color: var(--color-text-soft); }
.prose ul, .prose ol { padding-left: 1.25em; margin: 0 0 var(--space-4); }
.prose li { margin-bottom: var(--space-2); }
.prose a { color: var(--color-accent-soft); text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--color-gold-soft); }
.prose a:hover { text-decoration-color: var(--color-accent); }

/* Reviews */
.review-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-4); }
@media (max-width: 720px) { .review-grid { grid-template-columns: 1fr; } }
.review {
  margin: 0; padding: var(--space-5);
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.review__top { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--space-3); }
.review .stars { color: var(--color-accent-soft); letter-spacing: 2px; font-size: 0.95rem; }
.review__name { font-weight: 700; font-size: var(--fs-sm); color: var(--color-text-soft); }
.review blockquote { margin: 0 0 var(--space-3); font-size: var(--fs-sm); color: var(--color-text-soft); line-height: 1.7; }
.review figcaption { display: flex; justify-content: space-between; font-size: var(--fs-xs); color: var(--color-text-muted); }

/* Editorial byline (E-E-A-T authorship + freshness) */
.byline {
  display: flex; flex-wrap: wrap; gap: 6px 10px; align-items: center;
  font-size: var(--fs-xs); color: var(--color-text-muted);
  padding: 10px 14px; margin: 0 0 var(--space-6);
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
}
.byline strong { color: var(--color-text-soft); }
.byline a { color: var(--color-accent-soft); text-decoration: none; }

/* Checklist */
.checklist { list-style: none; padding: 0; margin: 0; display: grid; gap: var(--space-2); }
.checklist li {
  position: relative; padding: 12px 14px 12px 44px;
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-sm); color: var(--color-text-soft); font-size: var(--fs-sm);
}
.checklist li::before {
  content: "✓"; position: absolute; left: 14px; top: 11px;
  width: 20px; height: 20px; border-radius: 6px;
  background: rgba(255,122,24,0.16); color: var(--color-accent-soft);
  display: grid; place-items: center; font-size: 0.8rem; font-weight: 900;
}

/* FAQ (details/summary) */
.faq { display: grid; gap: var(--space-3); }
.faq details {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-md); overflow: clip;
}
.faq summary {
  list-style: none; cursor: pointer; padding: var(--space-4) var(--space-5);
  font-weight: 700; display: flex; justify-content: space-between; gap: var(--space-4);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--color-accent-soft); font-size: 1.3rem; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details[open] summary { color: var(--color-accent-soft); }
.faq .answer { padding: 0 var(--space-5) var(--space-5); color: var(--color-text-muted); font-size: var(--fs-sm); }

/* Who/How/Why block */
.whw { display: grid; gap: var(--space-4); grid-template-columns: repeat(3, 1fr); }
@media (max-width: 780px) { .whw { grid-template-columns: 1fr; } }
.whw article { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--space-5); }
.whw h3 { color: var(--color-accent-soft); font-size: 1.05rem; }
.whw p { font-size: var(--fs-sm); color: var(--color-text-muted); margin: 0; }

/* Notice / policy callout */
.notice {
  border: 1px solid var(--color-border-strong);
  border-left: 3px solid var(--color-accent);
  background: rgba(255,122,24,0.05);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  font-size: var(--fs-sm);
  color: var(--color-text-soft);
}

/* Breadcrumb */
.breadcrumb { font-size: var(--fs-xs); color: var(--color-text-muted); padding-block: var(--space-4); }
.breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; padding: 0; margin: 0; }
.breadcrumb li:not(:last-child)::after { content: "/"; margin-left: 6px; color: var(--color-text-faint); }
.breadcrumb a:hover { color: var(--color-accent-soft); }

/* Related links row */
.related { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.chip {
  display: inline-flex; padding: 8px 14px; border-radius: var(--radius-pill);
  background: rgba(255,255,255,0.04); border: 1px solid var(--color-border);
  font-size: var(--fs-sm); color: var(--color-text-soft);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.chip:hover { border-color: var(--color-ring); color: var(--color-text); }

/* Pricing (main page) */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); align-items: stretch; }
@media (max-width: 820px) { .price-grid { grid-template-columns: 1fr; } }
.price { text-align: center; display: flex; flex-direction: column; gap: var(--space-3); }
.price .tier { font-weight: 800; font-size: 1.2rem; }
.price .amount { font-size: 2.2rem; font-weight: 900; letter-spacing: -0.02em; }
.price .amount small { font-size: 0.9rem; font-weight: 600; color: var(--color-text-muted); }
.price .dur { color: var(--color-accent-soft); font-weight: 700; }
.price .desc { color: var(--color-text-muted); font-size: var(--fs-sm); }
.price .tag {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--gradient-accent); color: var(--color-text-on-accent);
  font-size: var(--fs-xs); font-weight: 800; padding: 5px 14px; border-radius: var(--radius-pill);
  box-shadow: var(--glow-accent);
}

/* =====================================================================
   Floating call button (mobile, all pages / all regions) — orange, animated
   ===================================================================== */
.float-call {
  position: fixed;
  right: 18px;
  bottom: calc(18px + env(safe-area-inset-bottom, 0px));
  z-index: 120;
  width: 62px;
  height: 62px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--gradient-accent);
  color: var(--color-text-on-accent);
  box-shadow: 0 12px 26px -6px rgba(255, 106, 0, 0.6), 0 0 0 0 rgba(255, 122, 24, 0.55);
  animation: fc-bob 1.9s var(--ease) infinite, fc-ring 2.2s ease-out infinite;
}
.float-call svg { width: 28px; height: 28px; }
.float-call__label {
  position: absolute; right: calc(100% + 10px); top: 50%; transform: translateY(-50%);
  background: var(--color-elevated); color: var(--color-text);
  border: 1px solid var(--color-border-strong);
  font-size: var(--fs-xs); font-weight: 700; white-space: nowrap;
  padding: 7px 12px; border-radius: var(--radius-pill);
  box-shadow: var(--shadow-md);
}
@keyframes fc-bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-7px); }
}
@keyframes fc-ring {
  0% { box-shadow: 0 12px 26px -6px rgba(255,106,0,0.6), 0 0 0 0 rgba(255,122,24,0.5); }
  70% { box-shadow: 0 12px 26px -6px rgba(255,106,0,0.6), 0 0 0 18px rgba(255,122,24,0); }
  100% { box-shadow: 0 12px 26px -6px rgba(255,106,0,0.6), 0 0 0 0 rgba(255,122,24,0); }
}
@media (prefers-reduced-motion: reduce) {
  .float-call { animation: none; }
}
/* Show on every page; slightly larger tap target on very small screens */
@media (min-width: 981px) {
  .float-call { width: 60px; height: 60px; right: 24px; bottom: 24px; }
  .float-call__label { display: inline-block; }
}
@media (max-width: 980px) {
  .float-call__label { display: none; }
}

/* Mobile bottom action bar (region/program pages) */
.mobile-bar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 110;
  display: none;
  grid-auto-flow: column; grid-auto-columns: 1fr;
  gap: 1px;
  background: var(--color-border);
  border-top: 1px solid var(--color-border-strong);
  padding-bottom: env(safe-area-inset-bottom, 0px);
  backdrop-filter: blur(10px);
}
.mobile-bar a {
  display: flex; flex-direction: column; align-items: center; gap: 3px;
  padding: 10px 4px; background: var(--color-overlay);
  font-size: 0.72rem; font-weight: 700; color: var(--color-text-soft);
}
.mobile-bar a.primary { color: var(--color-accent-soft); }
.mobile-bar svg { width: 20px; height: 20px; }
@media (max-width: 980px) {
  .mobile-bar { display: grid; }
  body { padding-bottom: 62px; }
  .float-call { bottom: calc(70px + env(safe-area-inset-bottom, 0px)); }
}

/* =====================================================================
   Footer — with orange Telegram inquiry buttons
   ===================================================================== */
.site-footer {
  margin-top: var(--space-24);
  border-top: 1px solid var(--color-border);
  background: linear-gradient(180deg, rgba(255,255,255,0.02), transparent), var(--color-bg-2);
  padding-block: var(--space-16) var(--space-10);
}
.footer-cta {
  display: flex; flex-wrap: wrap; gap: var(--space-3);
  justify-content: center; margin-bottom: var(--space-10);
}
.footer-cta .btn { min-width: 210px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: var(--space-8); }
@media (max-width: 820px) { .footer-grid { grid-template-columns: 1fr; gap: var(--space-6); } }
.footer-grid h4 { font-size: 0.82rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-text-muted); margin: 0 0 var(--space-3); }
.footer-grid ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.footer-grid a { color: var(--color-text-soft); font-size: var(--fs-sm); }
.footer-grid a:hover { color: var(--color-accent-soft); }
.footer-brand p { color: var(--color-text-muted); font-size: var(--fs-sm); max-width: 42ch; }
.footer-contact { margin-top: var(--space-4); font-size: var(--fs-sm); color: var(--color-text-soft); }
.footer-contact strong { color: var(--color-text); }
.footer-contact a.tel { color: var(--color-accent-soft); font-weight: 800; font-size: 1.05rem; }
.footer-legal {
  margin-top: var(--space-10); padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-3);
  font-size: var(--fs-xs); color: var(--color-text-faint);
}
.footer-legal a { color: var(--color-text-muted); }
.footer-legal a:hover { color: var(--color-accent-soft); }

/* Telegram button icon sizing */
.btn svg { width: 18px; height: 18px; }

/* Utility */
.mt-0 { margin-top: 0; } .mb-0 { margin-bottom: 0; }
.center { text-align: center; }
.hide { display: none !important; }