/* Jundeira — cool ink desk + mint signal */
:root {
  --ink: #122028;
  --ink-soft: #2a3d48;
  --mist: #e8f1ef;
  --paper: #f4faf8;
  --mint: #3aa88a;
  --mint-deep: #2a7d68;
  --signal: #f0c14a;
  --line: rgba(18, 32, 40, 0.12);
  --danger: #b33a3a;
  --ok: #1f7a55;
  --shadow: 0 18px 40px rgba(18, 32, 40, 0.08);
  --radius: 2px;
  --font-display: "Hahmlet", "Noto Serif KR", serif;
  --font-body: "IBM Plex Sans KR", "Noto Sans KR", sans-serif;
  --max: 1120px;
  --header-h: 4.25rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(58, 168, 138, 0.18), transparent 55%),
    radial-gradient(ellipse 60% 40% at 90% 0%, rgba(240, 193, 74, 0.12), transparent 50%),
    linear-gradient(180deg, #dfece8 0%, var(--paper) 28%, var(--mist) 100%);
  background-attachment: fixed;
  line-height: 1.7;
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60'%3E%3Cpath d='M0 30h60M30 0v60' stroke='%23122028' stroke-width='1' fill='none'/%3E%3C/svg%3E");
  z-index: 0;
}

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

a {
  color: var(--mint-deep);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--ink);
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  line-height: 1.25;
  font-weight: 600;
  letter-spacing: -0.02em;
}

p {
  margin: 0 0 1rem;
}

.container {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
  position: relative;
  z-index: 1;
}

.inline-error {
  position: relative;
  z-index: 100;
  background: #fde8e8;
  color: var(--danger);
  padding: 0.75rem 1rem;
  text-align: center;
  font-size: 0.95rem;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  background: rgba(244, 250, 248, 0.86);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.45rem;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.03em;
}

.logo:hover {
  color: var(--mint-deep);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 1.1rem;
}

.site-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--mint-deep);
}

.site-nav .nav-cta {
  background: var(--ink);
  color: var(--paper) !important;
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius);
}

.site-nav .nav-cta:hover {
  background: var(--mint-deep);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: 0;
  padding: 0.4rem;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--ink);
  color: var(--paper);
}

.btn-primary:hover {
  background: var(--mint-deep);
  color: #fff;
}

.btn-secondary {
  background: transparent;
  border-color: var(--ink);
  color: var(--ink);
}

.btn-secondary:hover {
  background: var(--ink);
  color: var(--paper);
}

.btn-ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--ink-soft);
}

.btn-ghost:hover {
  border-color: var(--ink);
  color: var(--ink);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* Hero — full bleed */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  display: grid;
  align-items: end;
  color: #f7fbf9;
  overflow: hidden;
}

.hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  animation: heroDrift 18s ease-in-out infinite alternate;
}

.hero__shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(100deg, rgba(10, 22, 28, 0.88) 18%, rgba(10, 22, 28, 0.45) 55%, rgba(10, 22, 28, 0.25) 100%),
    linear-gradient(0deg, rgba(10, 22, 28, 0.7) 0%, transparent 45%);
}

.hero__content {
  position: relative;
  z-index: 1;
  width: min(100% - 2rem, var(--max));
  margin: 0 auto 4.5rem;
  max-width: 38rem;
  animation: riseIn 0.9s ease both;
}

.hero__brand {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 8vw, 5.2rem);
  font-weight: 700;
  margin: 0 0 0.6rem;
  letter-spacing: -0.04em;
  line-height: 1.05;
}

.hero__lead {
  font-size: clamp(1.05rem, 2.2vw, 1.25rem);
  margin-bottom: 1.5rem;
  color: rgba(247, 251, 249, 0.9);
  max-width: 28rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero .btn-primary {
  background: var(--mint);
  color: var(--ink);
}

.hero .btn-primary:hover {
  background: var(--signal);
}

.hero .btn-secondary {
  border-color: rgba(247, 251, 249, 0.55);
  color: #f7fbf9;
}

.hero .btn-secondary:hover {
  background: #f7fbf9;
  color: var(--ink);
}

/* Sections */
.section {
  padding: 4.5rem 0;
  position: relative;
  z-index: 1;
}

.section-head {
  max-width: 36rem;
  margin-bottom: 2.25rem;
}

.section-head h2 {
  font-size: clamp(1.7rem, 3.5vw, 2.35rem);
  margin: 0 0 0.6rem;
}

.section-head p {
  color: var(--ink-soft);
  margin: 0;
}

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mint-deep);
  margin-bottom: 0.5rem;
}

/* Proof strip — after hero on home */
.proof-strip {
  background: var(--ink);
  color: #e8f1ef;
  padding: 1.75rem 0;
  position: relative;
  z-index: 2;
}

.proof-strip__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  text-align: center;
}

.proof-strip strong {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  color: var(--signal);
  margin-bottom: 0.25rem;
}

.proof-strip span {
  font-size: 0.9rem;
  opacity: 0.85;
}

/* Course / content grids */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.course-teaser {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.course-teaser a {
  text-decoration: none;
  color: inherit;
}

.course-teaser__img {
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: #c5d8d2;
}

.course-teaser__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.course-teaser:hover .course-teaser__img img {
  transform: scale(1.04);
}

.course-teaser h3 {
  margin: 0;
  font-size: 1.2rem;
}

.course-teaser p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.meta {
  font-size: 0.82rem;
  color: var(--mint-deep);
  font-weight: 600;
}

/* Benefits — staggered list, not icon row cards */
.benefit-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.benefit-item {
  display: grid;
  grid-template-columns: 4rem 1fr;
  gap: 1.25rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
  animation: riseIn 0.7s ease both;
}

.benefit-item:nth-child(2) {
  animation-delay: 0.08s;
}

.benefit-item:nth-child(3) {
  animation-delay: 0.16s;
}

.benefit-item:nth-child(4) {
  animation-delay: 0.24s;
}

.benefit-num {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--mint);
  font-weight: 700;
}

.benefit-item h3 {
  margin: 0 0 0.35rem;
  font-size: 1.2rem;
}

.benefit-item p {
  margin: 0;
  color: var(--ink-soft);
}

/* Quotes */
.quote-stack {
  display: grid;
  gap: 1.75rem;
}

.quote {
  max-width: 40rem;
  padding-left: 1.25rem;
  border-left: 3px solid var(--mint);
}

.quote p {
  font-size: 1.05rem;
  margin-bottom: 0.6rem;
}

.quote footer {
  font-size: 0.88rem;
  color: var(--ink-soft);
}

.quote--wide {
  max-width: none;
}

.quote--short {
  max-width: 28rem;
  margin-left: auto;
}

/* CTA band */
.cta-band {
  background:
    linear-gradient(135deg, rgba(58, 168, 138, 0.2), rgba(240, 193, 74, 0.12)),
    var(--ink);
  color: #f4faf8;
  padding: 3.5rem 0;
  position: relative;
  z-index: 1;
}

.cta-band h2 {
  margin: 0 0 0.6rem;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
}

.cta-band p {
  margin: 0 0 1.25rem;
  max-width: 32rem;
  opacity: 0.9;
}

.cta-band .btn-primary {
  background: var(--signal);
  color: var(--ink);
}

.cta-band .btn-primary:hover {
  background: #fff;
}

/* Page heroes (inner) */
.page-hero {
  padding: 3.5rem 0 2rem;
  position: relative;
  z-index: 1;
}

.page-hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  margin: 0 0 0.75rem;
  max-width: 18ch;
}

.page-hero p {
  max-width: 38rem;
  color: var(--ink-soft);
  font-size: 1.05rem;
}

.page-hero--media {
  min-height: 42vh;
  display: grid;
  align-items: end;
  color: #f7fbf9;
  overflow: hidden;
  position: relative;
  padding: 0;
}

.page-hero--media .page-hero__bg {
  position: absolute;
  inset: 0;
}

.page-hero--media .page-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-hero--media .page-hero__shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(10, 22, 28, 0.9) 10%, rgba(10, 22, 28, 0.35) 100%);
}

.page-hero--media .container {
  position: relative;
  z-index: 1;
  padding: 4rem 0 3rem;
}

.page-hero--media h1,
.page-hero--media p {
  color: #f7fbf9;
}

.page-hero--media p {
  opacity: 0.9;
}

/* Pricing */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  align-items: stretch;
}

.price-tier {
  padding: 1.75rem 1.5rem;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.45);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.price-tier--focus {
  border-color: var(--mint);
  background: rgba(58, 168, 138, 0.08);
  transform: translateY(-6px);
}

.price-tier h2 {
  margin: 0;
  font-size: 1.35rem;
}

.price-tier .amount {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  margin: 0;
}

.price-tier .amount span {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--ink-soft);
}

.price-tier ul {
  margin: 0;
  padding: 0;
  list-style: none;
  flex: 1;
}

.price-tier li {
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.95rem;
}

.price-note {
  margin-top: 1.5rem;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

/* Reviews / cases */
.review-grid {
  display: grid;
  gap: 2rem;
}

.review-block {
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--line);
}

.review-block h3 {
  margin: 0 0 0.5rem;
}

.stars {
  color: var(--mint-deep);
  letter-spacing: 0.1em;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.case-study {
  background: rgba(18, 32, 40, 0.04);
  padding: 1.75rem;
  margin-top: 1rem;
}

.case-study h3 {
  margin-top: 0;
}

/* Blog */
.blog-list {
  display: grid;
  gap: 2rem;
}

.blog-item {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 1.5rem;
  align-items: start;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--line);
}

.blog-item__img {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #c5d8d2;
}

.blog-item__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.blog-item h2 {
  margin: 0 0 0.4rem;
  font-size: 1.35rem;
}

.blog-item h2 a {
  color: inherit;
  text-decoration: none;
}

.blog-item h2 a:hover {
  color: var(--mint-deep);
}

.article {
  max-width: 42rem;
}

.article .cover {
  margin: 0 0 2rem;
  aspect-ratio: 21 / 9;
  overflow: hidden;
}

.article .cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.article h2 {
  margin: 2rem 0 0.75rem;
  font-size: 1.4rem;
}

/* Course detail */
.modules {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.module {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--line);
}

.module h3 {
  margin: 0 0 0.35rem;
  font-size: 1.1rem;
}

.module p {
  margin: 0;
  color: var(--ink-soft);
}

.instructor {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 1.5rem;
  align-items: start;
}

.instructor img {
  width: 140px;
  height: 140px;
  object-fit: cover;
  border-radius: 50%;
}

.outcomes {
  columns: 2;
  gap: 1.5rem;
  margin: 0;
  padding-left: 1.2rem;
}

.outcomes li {
  margin-bottom: 0.5rem;
  break-inside: avoid;
}

.faq details {
  border-bottom: 1px solid var(--line);
  padding: 1rem 0;
}

.faq summary {
  cursor: pointer;
  font-weight: 600;
  font-family: var(--font-display);
}

.faq details p {
  margin: 0.75rem 0 0;
  color: var(--ink-soft);
}

/* Contact */
.contact-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2.5rem;
  align-items: start;
}

.field {
  margin-bottom: 1.1rem;
}

.field label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.35rem;
  font-size: 0.92rem;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.7);
  font: inherit;
  color: var(--ink);
}

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

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: 2px solid var(--mint);
  outline-offset: 1px;
}

.field input[aria-invalid="true"],
.field textarea[aria-invalid="true"] {
  border-color: var(--danger);
}

.field-error {
  min-height: 1.2em;
  font-size: 0.85rem;
  color: var(--danger);
  margin-top: 0.25rem;
}

.form-status {
  margin-top: 1rem;
  font-weight: 600;
}

.form-status.is-success {
  color: var(--ok);
}

.form-status.is-error {
  color: var(--danger);
}

.contact-aside {
  padding: 1.5rem;
  background: rgba(18, 32, 40, 0.04);
  border-left: 3px solid var(--mint);
}

.contact-aside h2 {
  margin: 0 0 0.75rem;
  font-size: 1.2rem;
}

.contact-aside p {
  font-size: 0.95rem;
  color: var(--ink-soft);
}

/* Legal */
.legal {
  max-width: 46rem;
}

.legal h2 {
  margin: 2rem 0 0.6rem;
  font-size: 1.25rem;
}

.legal table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin: 1rem 0 1.5rem;
}

.legal th,
.legal td {
  border: 1px solid var(--line);
  padding: 0.65rem 0.75rem;
  text-align: left;
  vertical-align: top;
}

.legal th {
  background: rgba(18, 32, 40, 0.05);
}

/* 404 */
.error-page {
  min-height: 60vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 4rem 1rem;
}

.error-page h1 {
  font-size: clamp(3rem, 10vw, 5rem);
  margin: 0 0 0.5rem;
  color: var(--mint);
}

/* Footer */
.site-footer {
  background: var(--ink);
  color: #d5e4df;
  padding: 3.5rem 0 1.5rem;
  margin-top: 3rem;
  position: relative;
  z-index: 1;
}

.footer-grid {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto 2rem;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.3fr;
  gap: 2rem;
}

.footer-brand .logo {
  color: #f4faf8;
  display: inline-block;
  margin-bottom: 0.75rem;
}

.footer-brand p,
.footer-contact p {
  font-size: 0.9rem;
  color: #a8bcb5;
  margin: 0 0 0.75rem;
}

.footer-col h2 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--signal);
  margin: 0 0 0.85rem;
}

.footer-col a {
  display: block;
  color: #c9dbd4;
  text-decoration: none;
  font-size: 0.92rem;
  margin-bottom: 0.45rem;
}

.footer-col a:hover {
  color: #fff;
}

.footer-bottom {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.85rem;
  color: #8fa59c;
}

.footer-bottom p {
  margin: 0;
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 80;
  padding: 1rem;
  animation: riseIn 0.5s ease both;
}

.cookie-banner__inner {
  width: min(100%, 720px);
  margin: 0 auto;
  background: var(--ink);
  color: #e8f1ef;
  padding: 1.15rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow);
  border-top: 3px solid var(--mint);
}

.cookie-banner__inner p {
  margin: 0;
  flex: 1 1 280px;
  font-size: 0.9rem;
}

.cookie-banner__inner a {
  color: var(--signal);
}

.cookie-banner__actions {
  display: flex;
  gap: 0.5rem;
}

.cookie-banner .btn-ghost {
  color: #d5e4df;
  border-color: rgba(255, 255, 255, 0.25);
}

.cookie-banner .btn-primary {
  background: var(--mint);
  color: var(--ink);
}

/* Split feature (custom page) */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
}

.split__visual {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #c5d8d2;
}

.split__visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Animations */
@keyframes riseIn {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes heroDrift {
  from {
    transform: scale(1.02) translateY(0);
  }
  to {
    transform: scale(1.08) translateY(-2%);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}

/* Responsive */
@media (max-width: 900px) {
  .card-grid,
  .pricing-grid,
  .proof-strip__grid,
  .footer-grid,
  .contact-layout,
  .split {
    grid-template-columns: 1fr;
  }

  .blog-item {
    grid-template-columns: 1fr;
  }

  .price-tier--focus {
    transform: none;
  }

  .outcomes {
    columns: 1;
  }

  .instructor {
    grid-template-columns: 100px 1fr;
  }
}

@media (max-width: 760px) {
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: rgba(244, 250, 248, 0.98);
    flex-direction: column;
    align-items: stretch;
    padding: 1rem 1.25rem 1.25rem;
    border-bottom: 1px solid var(--line);
    gap: 0.25rem;
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 0.65rem 0.25rem;
  }

  .site-nav .nav-cta {
    text-align: center;
    margin-top: 0.35rem;
  }

  .header-inner {
    position: relative;
  }

  .hero {
    min-height: 78vh;
  }

  .benefit-item {
    grid-template-columns: 2.5rem 1fr;
  }
}