/* ==========================================================================
   VisionEduLink Lab — Landing Page
   Brand Design System V3 : Soft Ivory / Graphite Black / Vision Olive
   ========================================================================== */

:root {
  --ivory: #F3EFE3;
  --black: #171715;
  --olive: #A7A43B;
  --olive-dark: #8f8c30;
  --deep-olive: #45451F;
  --warm-gray: #C8C2B4;
  --white: #FFFFFF;

  --font-kr: "Pretendard", -apple-system, BlinkMacSystemFont, "Malgun Gothic", sans-serif;
  --font-en: "Manrope", "Pretendard", sans-serif;

  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;
  --space-6: 64px;

  --max-width: 1200px;
  --radius: 12px;

  --transition: 220ms ease;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body, h1, h2, h3, p, ul, figure { margin: 0; }
ul { padding: 0; list-style: none; }
img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, select, textarea { font: inherit; color: inherit; }

/* ---------- Base type scale (넉넉하게 키운 한국어 가독 사이즈) ---------- */
html { font-size: 17px; }
@media (min-width: 768px) { html { font-size: 18px; } }

body {
  font-family: var(--font-kr);
  background: var(--ivory);
  color: var(--black);
  line-height: 1.7;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
}

.en {
  font-family: var(--font-en);
}

h1, h2, h3 { font-weight: 700; line-height: 1.3; letter-spacing: -0.02em; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

@media (min-width: 768px) {
  .container { padding: 0 var(--space-5); }
}

.overline {
  display: inline-block;
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  color: var(--olive);
  text-transform: uppercase;
  margin-bottom: var(--space-2);
}

.section-title {
  font-size: clamp(1.9rem, 1.4rem + 2vw, 2.6rem);
  margin-bottom: var(--space-2);
}

.section-desc {
  font-size: 1.05rem;
  color: #4a4a46;
  max-width: 640px;
}

.section {
  padding: var(--space-6) 0;
}

.section--dark {
  background: var(--black);
  color: var(--ivory);
}

.section--dark .overline { color: var(--olive); }

.section-head {
  margin-bottom: var(--space-5);
}
.section-head.center { text-align: center; margin-left: auto; margin-right: auto; }
.section-head.center .section-desc { margin-left: auto; margin-right: auto; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px 30px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 1.05rem;
  transition: background var(--transition), color var(--transition), border-color var(--transition), filter var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: var(--olive);
  color: var(--white);
}
.btn--primary:hover { filter: brightness(0.92); }

.btn--secondary {
  background: var(--deep-olive);
  color: var(--white);
}
.btn--secondary:hover { filter: brightness(1.15); }

.btn--outline {
  background: var(--white);
  color: var(--black);
  border: 1.5px solid var(--warm-gray);
}
.btn--outline:hover { border-color: var(--olive); color: var(--olive); }

.btn--outline-light {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(243,239,227,0.55);
}
.btn--outline-light:hover { border-color: var(--olive); color: var(--olive); }

.btn--block { width: 100%; padding: 18px 24px; font-size: 1.15rem; }
.btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  filter: grayscale(0.2);
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: rgba(243, 239, 227, 0.88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(200, 194, 180, 0.7);
}

.site-header__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 14px var(--space-3);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

@media (min-width: 768px) {
  .site-header__inner { padding: 16px var(--space-5); }
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand img {
  height: 34px;
  width: auto;
}
.brand__suffix {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}
.brand__tagline {
  display: none;
  font-size: 0.8rem;
  color: #5a5a54;
  padding-left: 10px;
  border-left: 1px solid var(--warm-gray);
}
@media (min-width: 900px) {
  .brand__tagline { display: inline; }
}

.nav {
  display: none;
  align-items: center;
  gap: var(--space-5);
}
.nav a {
  font-weight: 600;
  font-size: 1rem;
  position: relative;
  padding: 4px 0;
}
.nav a:hover { color: var(--olive); }

@media (min-width: 900px) {
  .nav { display: flex; }
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.header-actions .btn {
  padding: 11px 22px;
  font-size: 0.95rem;
}
.header-actions .btn { display: none; }
@media (min-width: 640px) {
  .header-actions .btn { display: inline-flex; }
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav-toggle span {
  width: 24px;
  height: 2.5px;
  background: var(--black);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
@media (min-width: 900px) {
  .nav-toggle { display: none; }
}
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

.mobile-nav {
  max-height: 0;
  overflow: hidden;
  background: var(--ivory);
  border-bottom: 1px solid var(--warm-gray);
  transition: max-height var(--transition);
}
.mobile-nav.is-open { max-height: 320px; }
.mobile-nav__inner {
  padding: var(--space-2) var(--space-3) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.mobile-nav a {
  font-weight: 600;
  font-size: 1.1rem;
  padding: 8px 0;
}
@media (min-width: 900px) {
  .mobile-nav { display: none; }
}

/* ---------- Hero (autoplay video, Patreon-style) ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  color: var(--white);
}

.hero__media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: rgba(23, 23, 21, 0.58);
}

.hero__content {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 130px var(--space-3) var(--space-6);
  max-width: var(--max-width);
  margin: 0 auto;
}

@media (min-width: 768px) {
  .hero__content { padding: 160px var(--space-5) var(--space-6); }
}

.hero__badge {
  display: inline-block;
  background: rgba(200, 194, 180, 0.28);
  border: 1px solid rgba(243, 239, 227, 0.4);
  color: var(--ivory);
  font-family: var(--font-en);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  padding: 8px 16px;
  border-radius: 999px;
  margin-bottom: var(--space-3);
}

.hero__title {
  font-size: clamp(2.3rem, 1.6rem + 3.2vw, 3.75rem);
  line-height: 1.22;
  font-weight: 800;
  max-width: 820px;
  margin-bottom: var(--space-3);
  text-wrap: balance;
  word-break: keep-all;
  overflow-wrap: normal;
}

.hero__sub {
  font-size: clamp(1.05rem, 0.95rem + 0.4vw, 1.25rem);
  color: rgba(243, 239, 227, 0.92);
  max-width: 600px;
  margin-bottom: var(--space-4);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.hero__trust {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  padding-top: var(--space-3);
  border-top: 1px solid rgba(243, 239, 227, 0.28);
}

.hero__trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--ivory);
}
.hero__trust-item::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--olive);
  flex-shrink: 0;
}

.hero__scroll {
  position: absolute;
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: rgba(243, 239, 227, 0.85);
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  animation: bob 2.2s ease-in-out infinite;
}
.hero__scroll svg { width: 16px; height: 16px; }

@keyframes bob {
  0%, 100% { transform: translate(-50%, 0); }
  50% { transform: translate(-50%, 8px); }
}

/* ---------- WHY section ---------- */
.why__grid {
  display: grid;
  gap: var(--space-5);
}
@media (min-width: 900px) {
  .why__grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

.why-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.why-item {
  display: flex;
  gap: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--warm-gray);
}
.why-item:first-child { border-top: none; padding-top: 0; }

.why-item__num {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--olive);
  flex-shrink: 0;
  width: 2.2em;
}

.why-item__title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.why-item__desc {
  font-size: 1rem;
  color: #4a4a46;
}

.why__image {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--warm-gray);
  position: relative;
}
.why__image img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4/3; }
.why__image figcaption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 14px 18px;
  background: rgba(23,23,21,0.62);
  color: var(--ivory);
  font-size: 0.9rem;
  font-weight: 600;
}

/* ---------- Field snapshot strip ---------- */
.field {
  background: var(--white);
  border-top: 1px solid var(--warm-gray);
  border-bottom: 1px solid var(--warm-gray);
}
.field__grid {
  display: grid;
  gap: var(--space-3);
}
@media (min-width: 768px) {
  .field__grid { grid-template-columns: repeat(2, 1fr); }
}
.field__card {
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  border: 1px solid var(--warm-gray);
}
.field__card img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
}
.field__caption {
  padding: 14px 18px;
  background: var(--ivory);
  border-top: 1px solid var(--warm-gray);
  font-size: 0.95rem;
  font-weight: 600;
}

/* ---------- Programs ---------- */
.programs__grid {
  display: grid;
  gap: var(--space-3);
}
@media (min-width: 700px) {
  .programs__grid { grid-template-columns: repeat(2, 1fr); }
}

.program-card {
  background: var(--white);
  border: 1px solid var(--warm-gray);
  border-radius: var(--radius);
  padding: var(--space-4);
  transition: border-color var(--transition), transform var(--transition);
}
.program-card:hover {
  border-color: var(--olive);
  transform: translateY(-3px);
}

.program-card__num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--olive);
  color: var(--white);
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 1.05rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-3);
}

.program-card__title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.program-card__target {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--deep-olive);
  background: var(--ivory);
  border: 1px solid var(--warm-gray);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 12px;
}

.program-card__desc {
  font-size: 1rem;
  color: #4a4a46;
}

.programs__note {
  margin-top: var(--space-4);
  font-size: 0.9rem;
  color: #6a6a63;
  text-align: center;
}

/* ---------- Founder ---------- */
.founder__grid {
  display: grid;
  gap: var(--space-5);
  align-items: center;
}
@media (min-width: 900px) {
  .founder__grid {
    grid-template-columns: 1.15fr 0.85fr;
  }
  .founder__grid.reverse-order .founder__photo { order: 2; }
}

.founder__title {
  font-size: clamp(1.9rem, 1.4rem + 2vw, 2.6rem);
  margin-bottom: var(--space-3);
}

.founder__desc {
  font-size: 1.1rem;
  color: rgba(243,239,227,0.88);
  margin-bottom: var(--space-4);
  max-width: 560px;
}

.founder__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: var(--space-4);
}
.founder__badge {
  border: 1px solid rgba(200,194,180,0.55);
  color: var(--ivory);
  font-size: 0.92rem;
  font-weight: 600;
  padding: 9px 16px;
  border-radius: 999px;
}

.founder__timeline {
  border-top: 1px solid rgba(200,194,180,0.35);
  padding-top: var(--space-3);
}
.founder__timeline summary {
  cursor: pointer;
  font-weight: 700;
  font-size: 1rem;
  color: var(--olive);
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
}
.founder__timeline summary::-webkit-details-marker { display: none; }
.founder__timeline summary::after {
  content: "+";
  font-size: 1.2rem;
  transition: transform var(--transition);
}
.founder__timeline[open] summary::after { transform: rotate(45deg); }

.timeline-list {
  margin-top: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.timeline-row {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: var(--space-2);
  font-size: 0.95rem;
  padding-bottom: var(--space-2);
  border-bottom: 1px dashed rgba(200,194,180,0.3);
}
.timeline-row:last-child { border-bottom: none; padding-bottom: 0; }
.timeline-row__year {
  font-family: var(--font-en);
  font-weight: 800;
  color: var(--olive);
}
.timeline-row__desc { color: rgba(243,239,227,0.85); }

.founder__photo {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(200,194,180,0.4);
}
.founder__photo img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  object-position: top center;
}

/* ---------- Apply form ---------- */
.apply__card {
  max-width: 680px;
  margin: 0 auto;
  background: var(--white);
  border: 1px solid var(--warm-gray);
  border-radius: var(--radius);
  padding: var(--space-5) var(--space-3);
}
@media (min-width: 640px) {
  .apply__card { padding: var(--space-6) var(--space-5); }
}

.form-field {
  margin-bottom: var(--space-3);
}
.form-field label {
  display: block;
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 8px;
}
.form-field .req { color: var(--olive); margin-left: 2px; }

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 16px 18px;
  font-size: 1.05rem;
  border: 1.5px solid var(--warm-gray);
  border-radius: 8px;
  background: var(--ivory);
  transition: border-color var(--transition), background var(--transition);
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--olive);
  background: var(--white);
}
.form-field textarea { min-height: 120px; resize: vertical; }

.form-radio-group {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}
@media (min-width: 480px) {
  .form-radio-group { grid-template-columns: 1fr 1fr; }
}
.form-radio {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1.5px solid var(--warm-gray);
  border-radius: 8px;
  padding: 14px 16px;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
  font-size: 0.98rem;
  font-weight: 600;
}
.form-radio:has(input:checked) {
  border-color: var(--olive);
  background: rgba(167,164,59,0.08);
}
.form-radio input { width: 18px; height: 18px; accent-color: var(--olive); flex-shrink: 0; }

.form-note {
  text-align: center;
  font-size: 0.88rem;
  color: #6a6a63;
  margin-top: var(--space-2);
}

.form-success {
  display: none;
  text-align: center;
  padding: var(--space-4) 0;
}
.form-success.is-visible { display: block; }
.form-success__icon {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--olive);
  color: var(--white);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto var(--space-3);
  font-size: 1.6rem;
}
.form-success h3 { font-size: 1.3rem; margin-bottom: 8px; }
.form-success p { color: #4a4a46; }

.apply-form.is-hidden { display: none; }

/* ---------- Footer ---------- */
.site-footer {
  padding: var(--space-6) 0 var(--space-3);
}
.footer__grid {
  display: grid;
  gap: var(--space-5);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid rgba(200,194,180,0.25);
}
@media (min-width: 768px) {
  .footer__grid { grid-template-columns: 1.3fr 1fr 1fr; }
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: var(--space-2);
}
.footer__brand img { height: 30px; }
.footer__brand span { font-family: var(--font-en); font-weight: 800; font-size: 1.05rem; }

.footer__desc {
  color: rgba(243,239,227,0.7);
  font-size: 0.95rem;
  max-width: 380px;
}

.footer__heading {
  font-family: var(--font-en);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: var(--olive);
  text-transform: uppercase;
  margin-bottom: var(--space-2);
}

.footer__links, .footer__contact {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.98rem;
}
.footer__links a:hover, .footer__contact a:hover { color: var(--olive); }
.footer__contact li { color: rgba(243,239,227,0.85); }

.footer__bottom {
  padding-top: var(--space-3);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-2);
  font-size: 0.85rem;
  color: rgba(243,239,227,0.55);
}

/* ---------- Scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 700ms ease, transform 700ms ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero__scroll { animation: none; }
}

/* ---------- Certificate ---------- */
.cert-badge {
  display: inline-block;
  background: rgba(167, 164, 59, 0.12);
  border: 1px solid var(--olive);
  color: var(--deep-olive);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  padding: 8px 18px;
  border-radius: 999px;
}

.cert__grid {
  display: grid;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}
@media (min-width: 800px) {
  .cert__grid { grid-template-columns: repeat(2, 1fr); }
}

.cert-card {
  background: var(--white);
  border: 1px solid var(--warm-gray);
  border-radius: var(--radius);
  padding: var(--space-4);
}

.cert-card__title {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 6px;
}

.cert-card__tagline {
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--deep-olive);
  margin-bottom: var(--space-4);
}

.cert-ladder {
  display: flex;
  align-items: stretch;
  gap: var(--space-2);
}
@media (max-width: 480px) {
  .cert-ladder { flex-direction: column; }
  .cert-ladder__arrow { transform: rotate(90deg); justify-content: center; padding: 4px 0; }
}

.cert-ladder__arrow {
  display: flex;
  align-items: center;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--olive);
  flex-shrink: 0;
}

.cert-level {
  flex: 1;
  background: var(--ivory);
  border: 1px solid var(--warm-gray);
  border-radius: 10px;
  padding: var(--space-3);
}
.cert-level--top {
  background: var(--black);
  border-color: var(--black);
}
.cert-level--top .cert-level__grade { color: var(--olive); }
.cert-level--top .cert-level__desc { color: rgba(243, 239, 227, 0.9); }

.cert-level__grade {
  display: block;
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--olive);
  margin-bottom: 6px;
}
.cert-level__desc {
  font-size: 0.98rem;
  color: #4a4a46;
}

.cert-info {
  display: grid;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
  padding: var(--space-4);
  background: var(--white);
  border: 1px solid var(--warm-gray);
  border-radius: var(--radius);
}
@media (min-width: 700px) {
  .cert-info { grid-template-columns: 1fr 1fr; }
}
.cert-info__heading {
  font-weight: 800;
  font-size: 1.15rem;
  margin-bottom: var(--space-2);
  color: var(--deep-olive);
}
.cert-info__list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 1.02rem;
}
.cert-info__list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.cert-info__num {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--olive);
  color: var(--white);
  font-weight: 800;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cert-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: center;
  margin-bottom: var(--space-5);
}

.notice-board {
  background: var(--white);
  border: 1px solid var(--warm-gray);
  border-radius: var(--radius);
  padding: var(--space-4);
  margin-bottom: var(--space-4);
}
.notice-board__heading {
  font-weight: 800;
  font-size: 1.15rem;
  margin-bottom: var(--space-2);
}
.notice-list {
  display: flex;
  flex-direction: column;
}
.notice-item {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  padding: 14px 0;
  border-top: 1px dashed var(--warm-gray);
  font-size: 1rem;
}
.notice-item:first-child { border-top: none; padding-top: 0; }
.notice-item__date {
  font-family: var(--font-en);
  font-weight: 700;
  color: var(--olive);
  flex-shrink: 0;
}

.cert-disclaimer {
  font-size: 0.88rem;
  color: #6a6a63;
  text-align: center;
}

/* ---------- Footer business info ---------- */
.footer__biz {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid rgba(200, 194, 180, 0.25);
  display: grid;
  gap: 10px 28px;
  font-size: 0.92rem;
  color: rgba(243, 239, 227, 0.72);
}
@media (min-width: 640px) {
  .footer__biz { grid-template-columns: repeat(2, 1fr); }
}
.footer__biz li strong {
  color: rgba(243, 239, 227, 0.92);
  font-weight: 700;
  margin-right: 6px;
}
.footer__biz a:hover { color: var(--olive); }

/* ---------- Institute inquiry form ---------- */
.cert-inquiry {
  margin-bottom: var(--space-4);
}
.cert-inquiry__title {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.cert-inquiry__or {
  text-align: center;
  margin-top: var(--space-3);
  font-size: 0.92rem;
  color: #8a8a83;
}
.cert-inquiry__kakao {
  display: flex;
  justify-content: center;
  margin-top: var(--space-2);
}

/* ---------- E-book page ---------- */
.ebook-includes__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
  max-width: 640px;
  margin: 0 auto;
}
@media (min-width: 600px) {
  .ebook-includes__grid { grid-template-columns: repeat(2, 1fr); }
}
.ebook-includes__item {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--white);
  border: 1px solid var(--warm-gray);
  border-radius: var(--radius);
  padding: 18px 20px;
  font-size: 1rem;
  font-weight: 600;
}
.ebook-includes__icon { font-size: 1.6rem; flex-shrink: 0; }

.ebook-toc__list { display: flex; flex-direction: column; gap: 12px; list-style: none; }
.ebook-toc__list li {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 1.05rem;
  font-weight: 600;
  padding: 14px 18px;
  background: var(--white);
  border: 1px solid var(--warm-gray);
  border-radius: var(--radius);
}
.ebook-toc__num {
  flex-shrink: 0;
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--olive);
  color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800;
  font-size: 0.9rem;
}

.ebook-preview__grid {
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 8px;
}
.ebook-preview__item {
  flex: 0 0 78%;
  scroll-snap-align: start;
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1.5px solid var(--warm-gray);
  background: var(--ivory);
  aspect-ratio: 3/4;
  display: block;
  padding: 0;
}
@media (min-width: 768px) {
  .ebook-preview__grid { overflow-x: visible; }
  .ebook-preview__item { flex: 1 1 0; }
}
.ebook-preview__item img { width: 100%; height: 100%; object-fit: cover; }
.ebook-preview__placeholder {
  display: none;
  position: absolute; inset: 0;
  align-items: center; justify-content: center;
  color: #8a8a83;
  font-weight: 700;
  font-size: 0.95rem;
  background: var(--ivory);
  text-align: center;
  padding: var(--space-2);
}
.ebook-preview__item.is-missing img { display: none; }
.ebook-preview__item.is-missing .ebook-preview__placeholder { display: flex; }

.ebook-price { text-align: center; }
.ebook-price__value {
  font-size: 2.6rem;
  font-family: var(--font-en);
  font-weight: 800;
  color: var(--olive);
}
.ebook-price__note { margin-top: 6px; font-size: 0.95rem; color: rgba(243,239,227,0.75); }

.ebook-steps__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: var(--space-3);
  list-style: none;
}
@media (min-width: 640px) {
  .ebook-steps__list { grid-template-columns: repeat(4, 1fr); }
}
.ebook-steps__list li {
  background: rgba(243,239,227,0.06);
  border: 1px solid rgba(243,239,227,0.18);
  border-radius: var(--radius);
  padding: 18px 16px;
  text-align: center;
  font-weight: 700;
  font-size: 0.98rem;
}
.ebook-steps__num {
  display: flex; align-items: center; justify-content: center;
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--olive);
  color: var(--white);
  font-weight: 800;
  margin: 0 auto 10px;
}
.ebook-steps__list small {
  display: block;
  margin-top: 4px;
  font-weight: 500;
  color: rgba(243,239,227,0.6);
  font-size: 0.82rem;
}

.ebook-bank-card {
  margin-top: var(--space-4);
  background: rgba(243,239,227,0.06);
  border: 1px solid rgba(243,239,227,0.18);
  border-radius: var(--radius);
  padding: var(--space-4);
}
.ebook-bank-card__row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-top: 1px dashed rgba(243,239,227,0.15);
  flex-wrap: wrap;
}
.ebook-bank-card__row:first-child { border-top: none; padding-top: 0; }
.ebook-bank-card__label {
  flex: 0 0 90px;
  font-weight: 700;
  color: rgba(243,239,227,0.65);
  font-size: 0.95rem;
}
.ebook-bank-card__value {
  font-weight: 800;
  font-size: 1.1rem;
  font-family: var(--font-en);
}
.ebook-bank-card__copy-btn {
  margin-left: auto;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 8px;
  background: var(--olive);
  color: var(--white);
  font-weight: 700;
  font-size: 0.95rem;
  white-space: nowrap;
}
.ebook-bank-card__copy-btn:hover { background: var(--olive-dark); }
.ebook-bank-card__hint {
  margin-top: 14px;
  font-size: 0.9rem;
  color: rgba(243,239,227,0.65);
}

.ebook-refund {
  background: var(--white);
  border: 1px solid var(--warm-gray);
  border-radius: var(--radius);
  padding: var(--space-4);
}
.ebook-refund__heading {
  font-weight: 800;
  font-size: 1.15rem;
  margin-bottom: var(--space-2);
  color: var(--deep-olive);
}
.ebook-refund__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.95rem;
  color: #4a4a46;
}
.ebook-refund__list li { padding-left: 16px; position: relative; }
.ebook-refund__list li::before {
  content: '·';
  position: absolute; left: 0;
  color: var(--olive);
  font-weight: 800;
}

.ebook-consent-box {
  background: var(--ivory);
  border: 1px solid var(--warm-gray);
  border-radius: 8px;
  padding: 16px 18px;
}
.ebook-consent-box__heading {
  font-weight: 800;
  font-size: 0.95rem;
  margin-bottom: 8px;
  color: var(--deep-olive);
}
.ebook-consent-box__list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.86rem;
  color: #5a5a53;
}
.ebook-consent-box__list li { padding-left: 14px; position: relative; }
.ebook-consent-box__list li::before {
  content: '·';
  position: absolute; left: 0;
  color: var(--olive);
}

.ebook-email-group { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.ebook-email-group input[type="text"] { flex: 1 1 140px; min-width: 0; }
.ebook-email-group__at { font-weight: 800; font-size: 1.1rem; color: var(--warm-gray); flex-shrink: 0; }
.ebook-email-group select { flex: 1 1 160px; min-width: 0; }
.ebook-email-preview { margin-top: 10px; font-size: 1rem; font-weight: 700; color: var(--deep-olive); }

.field-error { color: #c0392b; font-size: 0.86rem; margin-top: 6px; font-weight: 600; }

.ebook-lightbox {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.88);
  display: none;
  align-items: center; justify-content: center;
  padding: var(--space-3);
  z-index: 999;
}
.ebook-lightbox.is-open { display: flex; }
.ebook-lightbox img { max-width: 100%; max-height: 88vh; border-radius: 8px; }
.ebook-lightbox__close {
  position: absolute; top: 20px; right: 24px;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.12);
  color: #fff;
  font-size: 1.2rem;
  display: flex; align-items: center; justify-content: center;
}
.ebook-lightbox__close:hover { background: rgba(255,255,255,0.22); }

/* ==========================================================================
   전자책 진열대 (메인 페이지 · /ebook 페이지 공용)
   ========================================================================== */
.shelf-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: var(--space-3); }
.shelf-tab {
  border: 1.5px solid var(--warm-gray);
  background: var(--white);
  border-radius: 999px;
  padding: 8px 18px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--black);
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.shelf-tab[aria-pressed="true"] { background: var(--black); border-color: var(--black); color: var(--ivory); }
.shelf-tab:focus-visible, .shelf-item:focus-visible { outline: 3px solid var(--olive); outline-offset: 3px; }

.shelf-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4) var(--space-2);
  background: #EAE5D6;
  border-radius: var(--radius);
  padding: var(--space-3) var(--space-2);
}
@media (min-width: 640px) { .shelf-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); padding: var(--space-4); gap: var(--space-5) var(--space-3); } }
@media (min-width: 1000px) { .shelf-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); } }

.shelf-item {
  display: flex; flex-direction: column; gap: 4px;
  min-width: 0; text-align: left; padding: 0; color: inherit; background: none;
}
.shelf-item__thumb {
  display: flex; align-items: center; justify-content: center;
  background: var(--white);
  border-radius: 8px;
  aspect-ratio: 1 / 1;
  padding: 14px;
  margin-bottom: 8px;
}
.shelf-cover {
  position: relative; display: block;
  height: 100%; aspect-ratio: 210 / 297; max-width: 100%;
  border-radius: 2px 4px 4px 2px; overflow: hidden;
  box-shadow: 0 1px 2px rgba(23,23,21,0.15), 4px 8px 16px rgba(23,23,21,0.18);
  transition: transform 220ms ease;
}
.shelf-cover img { width: 100%; height: 100%; object-fit: cover; }
.shelf-cover::before {
  content: ''; position: absolute; inset: 0 auto 0 0; width: 5%; z-index: 1;
  background: linear-gradient(90deg, rgba(0,0,0,0.22), rgba(255,255,255,0.08) 70%, transparent);
}
.shelf-cover.is-soon::after {
  content: '출간 예정'; position: absolute; z-index: 2;
  top: 10px; right: -34px; transform: rotate(35deg);
  background: rgba(255,255,255,0.94); color: var(--deep-olive);
  font-size: 10px; font-weight: 800; padding: 3px 38px;
}
.shelf-item:hover .shelf-cover { transform: translateY(-4px); }
.shelf-item:hover .shelf-item__title { text-decoration: underline; text-underline-offset: 3px; }
.shelf-item__title { font-weight: 700; font-size: 1rem; line-height: 1.45; letter-spacing: -0.02em; }
.shelf-item__meta { font-size: 0.85rem; color: #6d6a5f; }
.shelf-item__price { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 8px; margin-top: 2px; }
.shelf-item__won { font-size: 1.1rem; font-weight: 800; }
.shelf-item__extra { flex-basis: 100%; font-size: 0.85rem; font-weight: 700; color: var(--deep-olive); }
.shelf-item__tbd { font-size: 0.9rem; color: #6d6a5f; }
.shelf-badge {
  display: inline-block; font-size: 0.75rem; font-weight: 800;
  padding: 2px 8px; border-radius: 4px;
}
.shelf-badge--sale { background: var(--olive); color: var(--white); }
.shelf-badge--soon { background: #E2DCCB; color: var(--deep-olive); }
.shelf-more { text-align: center; margin-top: var(--space-4); }

/* 책 소개 창 */
.book-modal {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(23,23,21,0.6);
  display: none; align-items: center; justify-content: center;
  padding: 16px;
}
.book-modal.is-open { display: flex; }
.book-modal__panel {
  position: relative; background: var(--white); border-radius: 16px;
  width: min(820px, 100%); max-height: calc(100% - 24px); overflow: auto;
}
.book-modal__close {
  position: absolute; top: 12px; right: 12px; z-index: 3;
  width: 44px; height: 44px; border-radius: 50%; background: var(--ivory); font-size: 1.1rem;
}
.book-detail { display: grid; grid-template-columns: 1fr; gap: var(--space-3); padding: var(--space-5) var(--space-3) var(--space-3); }
@media (min-width: 720px) { .book-detail { grid-template-columns: 260px 1fr; padding: var(--space-5); } }
.book-detail__cover { background: var(--ivory); border-radius: var(--radius); padding: 24px; display: flex; justify-content: center; align-items: flex-start; }
#ebook-price, #ebook-purchase { scroll-margin-top: 90px; }
.book-detail__cover .shelf-cover { width: 100%; max-width: 220px; height: auto; }
.book-detail__info { min-width: 0; }
.book-detail__info h3 { font-size: 1.45rem; margin: 8px 0 4px; text-wrap: balance; }
.book-detail__sub { color: var(--deep-olive); font-weight: 700; margin-bottom: 12px; }
.book-detail__desc { color: #3f3f3a; font-size: 1rem; }
.book-detail__points { margin: 14px 0 0; display: flex; flex-wrap: wrap; gap: 6px; }
.book-detail__points li { background: var(--ivory); border-radius: 999px; padding: 4px 12px; font-size: 0.88rem; font-weight: 600; }
.book-detail__spec {
  display: grid; grid-template-columns: 88px 1fr; gap: 6px 10px;
  margin: 18px 0; padding: 14px 0; border-block: 1px solid #e4dfd2; font-size: 0.98rem;
}
.book-detail__spec dt { color: #6d6a5f; }
.book-detail__spec dd { margin: 0; }
.book-detail__actions { display: flex; flex-wrap: wrap; gap: 8px; }
.book-detail__actions .btn { flex: 1 1 200px; padding: 14px 20px; }
.book-detail__actions .btn[disabled] { opacity: 0.45; cursor: not-allowed; }

/* 선택한 책 이름 (가격 위) */
.ebook-price__book { font-weight: 700; font-size: 1.05rem; color: var(--ivory); margin-bottom: 4px; }

/* 교환·환불 안내 — 작게, 접어서 */
.ebook-refund--compact { padding: 14px 20px; background: transparent; }
.ebook-refund--compact summary {
  cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center;
  font-size: 0.95rem; margin-bottom: 0; color: #4a4a46;
}
.ebook-refund--compact summary::-webkit-details-marker { display: none; }
.ebook-refund--compact summary::after { content: '＋'; color: #8a8a83; font-weight: 400; }
.ebook-refund--compact[open] summary::after { content: '－'; }
.ebook-refund--compact .ebook-refund__list { margin-top: 12px; font-size: 0.86rem; gap: 6px; color: #5a5a53; line-height: 1.7; }

@media (prefers-reduced-motion: reduce) { .shelf-cover { transition: none; } }

/* 한글이 낱글자로 끊기지 않고 낱말 단위로 줄바꿈되도록 */
body { word-break: keep-all; overflow-wrap: break-word; }
.ebook-steps__list li { text-wrap: balance; }
.shelf-item__title { text-wrap: balance; }
/* 진열대 제목이 한 줄에 들어가도록 */
@media (min-width: 1000px) {
  .shelf-grid { gap: var(--space-5) 18px; padding: var(--space-4) 28px; }
  .shelf-item__title { font-size: 0.92rem; letter-spacing: -0.035em; }
}
/* 제목이 1줄이든 2줄이든 '지음'·가격 줄 높이를 모든 책에서 맞춤 */
.shelf-item__title { min-height: calc(1.45em * 2); }
.shelf-item__price { min-height: 28px; }

/* ---------- 대표소개: 함께한 기관 ---------- */
.founder__orgs { margin-bottom: var(--space-4); }
.founder__orgs-title { font-weight: 700; font-size: 1rem; color: var(--olive); margin-bottom: 14px; }
.org-group + .org-group { margin-top: 14px; }
.org-group__label { font-size: 0.82rem; font-weight: 600; letter-spacing: 0.02em; color: rgba(243,239,227,0.6); margin-bottom: 8px; }
.org-chips { display: flex; flex-wrap: wrap; gap: 6px 8px; list-style: none; }
.org-chips li {
  background: rgba(243,239,227,0.08);
  color: var(--ivory);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 6px;
}
.org-chips--quiet li { background: transparent; border: 1px solid rgba(200,194,180,0.3); font-weight: 500; }
.founder__timeline--orgs { margin-top: var(--space-3); padding-top: 18px; }
.founder__timeline--orgs summary { font-size: 0.95rem; }
.org-more { margin-top: 18px; }
.org-stats { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; list-style: none; }
@media (min-width: 640px) { .org-stats { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.org-stats li {
  border: 1px solid rgba(200,194,180,0.3);
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 0.88rem;
  color: rgba(243,239,227,0.85);
  display: flex; flex-direction: column; gap: 2px;
}
.org-stats strong { font-size: 1.5rem; font-weight: 800; color: var(--olive); line-height: 1.1; }
.org-stats strong::after { content: '곳'; font-size: 0.85rem; margin-left: 2px; font-family: var(--font-kr); }
.org-stats small { font-size: 0.76rem; color: rgba(243,239,227,0.55); }
.org-chips--award li { background: rgba(167,164,59,0.16); color: var(--ivory); }
.org-chips--award li .en { margin-left: 4px; font-size: 0.78rem; font-weight: 700; color: var(--olive); }
.org-chips--award li a { color: inherit; text-decoration: none; }
.org-chips--award li a:hover { text-decoration: underline; text-underline-offset: 3px; }
.org-chips--award li:has(a) { background: rgba(167,164,59,0.26); }