body {
  --home-scale: 1;
  --home-card-scale: 1;
  --hero-card-scale: 1;
  --home-gap-scale: 1;
  --step-scale: 1;
  --step-card-ratio: 1.56;
}

body.font-large {
  --home-scale: 1.18;
  --home-card-scale: 1.1;
  --hero-card-scale: 1.22;
  --home-gap-scale: 1.1;
  --step-scale: 1.16;
}

body.font-xlarge {
  --home-scale: 1.32;
  --home-card-scale: 1.18;
  --hero-card-scale: 1.38;
  --home-gap-scale: 1.2;
  --step-scale: 1.3;
}

.hero-section {
  position: relative;
  min-height: calc(100vh - var(--header-height));
  overflow: hidden;
  isolation: isolate;
}

.home-pattern {
  position: absolute;
  z-index: -1;
  border-radius: 50%;
}

.home-pattern-left {
  width: 620px;
  height: 620px;
  left: -220px;
  top: -190px;
  background: var(--color-bg-pattern-1);
}

.home-pattern-right {
  width: 380px;
  height: 380px;
  right: -80px;
  top: -150px;
  background: var(--color-bg-pattern-2);
}

.hero-inner {
  width: min(calc(100% - 96px), calc(1520px * var(--home-gap-scale)));
  min-height: calc(100vh - var(--header-height));
  display: grid;
  grid-template-columns: minmax(720px, calc(820px * var(--home-gap-scale))) calc(390px * var(--hero-card-scale));
  align-items: center;
  justify-content: center;
  gap: calc(130px * var(--home-gap-scale));
  padding: calc(80px * var(--home-scale)) 0 calc(130px * var(--home-scale));
}

.hero-text {
  max-width: calc(840px * var(--home-gap-scale));
}

.hero-subtitle {
  margin-bottom: calc(22px * var(--home-scale));
  color: var(--color-accent);
  font-size: calc(1.05rem * var(--home-scale));
  font-weight: 900;
}

.hero-text h1 {
  font-size: clamp(calc(3.1rem * var(--home-scale)),
      calc(4.4vw * var(--home-scale)),
      calc(4.35rem * var(--home-scale)));
  line-height: 1.18;
  letter-spacing: 0;
}

.hero-text h1 span {
  display: block;
  white-space: nowrap;
}

.hero-line {
  width: min(calc(520px * var(--home-scale)), 100%);
  height: calc(12px * var(--home-scale));
  margin-top: calc(30px * var(--home-scale));
  border-radius: 999px;
  background: linear-gradient(90deg, #b85a00, var(--color-primary));
}

.continue-card {
  min-height: calc(360px * var(--hero-card-scale));
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: calc(52px * var(--hero-card-scale)) calc(34px * var(--hero-card-scale)) calc(34px * var(--hero-card-scale));
  border: 1px solid #f0b37c;
  border-radius: calc(24px * var(--home-scale));
  background: var(--color-soft-box);
  box-shadow: 0 8px 18px rgba(17, 24, 39, 0.12);
  transition: translate .2s ease, box-shadow .2s ease, border-color .2s ease;
}

.continue-card:hover,
.continue-card:focus-within {
  translate: 0 calc(-8px * var(--step-scale));
  border-color: var(--color-accent);
  box-shadow: 0 16px 28px rgba(17, 24, 39, 0.18);
}

.continue-card span {
  width: fit-content;
  padding: calc(10px * var(--hero-card-scale)) calc(18px * var(--hero-card-scale));
  border-radius: calc(12px * var(--hero-card-scale));
  background: var(--color-accent);
  color: #ffffff;
  font-size: calc(1.08rem * var(--hero-card-scale));
  font-weight: 900;
}

.continue-card h2 {
  margin: calc(28px * var(--hero-card-scale)) 0 auto;
  font-size: calc(2.05rem * var(--hero-card-scale));
  line-height: 1.25;
}

.continue-card a {
  align-self: flex-end;
  color: var(--color-accent);
  font-size: calc(1.12rem * var(--hero-card-scale));
  font-weight: 900;
}

.scroll-guide {
  position: absolute;
  left: 50%;
  bottom: 26px;
  transform: translateX(-50%);
  text-align: center;
  color: var(--color-text-sub);
  font-weight: 900;
  animation: scroll-guide-float 1.8s ease-in-out infinite;
}

.scroll-guide p {
  margin-bottom: 6px;
}

.scroll-guide span {
  display: block;
  line-height: 1;
}

@keyframes scroll-guide-float {

  0%,
  100% {
    translate: 0 0;
  }

  50% {
    translate: 0 10px;
  }
}

.step-section {
  min-height: calc(100vh - var(--header-height));
  padding: calc(120px * var(--step-scale)) 0 calc(130px * var(--step-scale));
}

.step-title-row {
  width: min(calc(100vw - 220px), calc(1280px * var(--step-scale)));
  position: relative;
  left: 50%;
  transform: translateX(-50%);
  display: grid;
  grid-template-columns: minmax(calc(500px * var(--step-scale)), calc(600px * var(--step-scale))) minmax(0, 1fr);
  align-items: end;
  gap: calc(86px * var(--step-scale));
  margin-bottom: calc(76px * var(--step-scale));
}

.step-title-row h2 {
  font-size: clamp(calc(2.6rem * var(--step-scale)),
      calc(3.6vw * var(--step-scale)),
      calc(3.7rem * var(--step-scale)));
  line-height: 1.08;
  letter-spacing: 0;
}

.step-title-row p {
  max-width: calc(780px * var(--step-scale));
  justify-self: end;
  color: var(--color-text-sub);
  font-size: calc(1.3rem * var(--step-scale));
  line-height: 1.65;
  font-weight: 700;
  translate: 0 calc(-58px * var(--step-scale));
}

.step-title-row p span {
  display: block;
  white-space: nowrap;
}

.step-card-list {
  width: min(calc(100vw - 220px), calc(1280px * var(--step-scale)));
  position: relative;
  left: 50%;
  transform: translateX(-50%);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: calc(44px * var(--step-scale));
}

.step-card {
  aspect-ratio: var(--step-card-ratio);
  position: relative;
  min-width: 0;
  min-height: unset;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-decoration: none;
  padding: calc(52px * var(--step-scale)) calc(38px * var(--step-scale)) calc(40px * var(--step-scale));
  border: calc(2px * var(--step-scale)) solid transparent;
  border-radius: calc(20px * var(--step-scale));
  box-shadow: 0 7px 14px rgba(17, 24, 39, 0.12);
  transition: translate .2s ease, box-shadow .2s ease, border-color .2s ease;
}


.step-card:hover,
.step-card:focus-visible {
  translate: 0 calc(-8px * var(--step-scale));
  box-shadow: 0 16px 28px rgba(17, 24, 39, 0.18);
  border-color: currentColor;
}

.step-card:hover::after,
.step-card:focus-visible::after {
  opacity: .55;
  transform: translateX(0);
}

.step-card:active {
  translate: 0 calc(-4px * var(--step-scale));
  transition-duration: .05s;
}

.step-card span {
  width: fit-content;
  padding: calc(9px * var(--step-scale)) calc(17px * var(--step-scale));
  border-radius: calc(12px * var(--step-scale));
  color: #ffffff;
  font-size: calc(0.95rem * var(--step-scale));
  font-weight: 900;
}

.step-card h3 {
  margin: calc(24px * var(--step-scale)) 0 auto;
  font-size: calc(1.7rem * var(--step-scale));
  line-height: 1.25;
}

.step-card-1 {
  background: var(--color-step-1);
  color: #236348;
}

.step-card-1 span {
  background: #236348;
}

.step-card-2 {
  background: var(--color-step-2);
  color: #0054b8;
}

.step-card-2 span {
  background: #0054b8;
}

.step-card-3 {
  background: var(--color-step-3);
  color: #6b2d28;
}

.step-card-3 span {
  background: #6b2d28;
}

.progress-line {
  width: 100%;
  height: calc(8px * var(--step-scale));
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.8);
  overflow: hidden;
}

.progress-line div {
  width: 0;
  /* 기본 0%. 실제 진행도는 progress.js 가 인라인 style 로 채움 (튜토리얼 50% / 실습 100%) */
  height: 100%;
  border-radius: inherit;
  background: currentColor;
  transition: width .4s ease;
}

.advanced-card-list {
  width: min(calc(100vw - 220px), calc(1280px * var(--step-scale)));
  position: relative;
  left: 50%;
  transform: translateX(-50%);
  display: grid;
  grid-template-columns:
    repeat(2, minmax(0, calc(300px * var(--step-scale)))) minmax(0, 1fr);
  gap: calc(42px * var(--step-scale));
  margin-top: calc(76px * var(--step-scale));
}

.advanced-card {
  aspect-ratio: 1.5;
  min-width: 0;
  min-height: unset;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #ef8a33;
  border-radius: calc(16px * var(--step-scale));
  background: var(--color-soft-box);
  box-shadow: 0 5px 12px rgba(17, 24, 39, 0.08);
  font-size: calc(1.45rem * var(--step-scale));
  font-weight: 900;
  transition: translate .2s ease, box-shadow .2s ease, background-color .2s ease, border-color .2s ease;
}

.advanced-card:hover,
.advanced-card:focus-visible {
  translate: 0 calc(-6px * var(--step-scale));
  border-color: var(--color-accent);
  background: #fff1de;
  box-shadow: 0 12px 22px rgba(17, 24, 39, 0.15);
}

.advanced-card:active {
  translate: 0 calc(-3px * var(--step-scale));
  transition-duration: .05s;
}

.free-practice-card {
  height: 100%;
  min-height: calc(184px * var(--step-scale));
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1fr);
  align-content: center;
  align-items: center;
  column-gap: calc(44px * var(--step-scale));
  row-gap: calc(12px * var(--step-scale));
  padding: calc(38px * var(--step-scale)) calc(38px * var(--step-scale)) calc(42px * var(--step-scale));
  border: calc(2px * var(--step-scale)) solid transparent;
  border-radius: calc(20px * var(--step-scale));
  background: #ffe9b3;
  color: #7a3f00;
  box-shadow: 0 7px 14px rgba(17, 24, 39, 0.12);
  text-decoration: none;
  transition: translate .2s ease, box-shadow .2s ease, border-color .2s ease;
}

.free-practice-card:hover,
.free-practice-card:focus-visible {
  translate: 0 calc(-6px * var(--step-scale));
  border-color: #7a3f00;
  box-shadow: 0 14px 26px rgba(17, 24, 39, 0.2);
}

.free-practice-card:active {
  translate: 0 calc(-3px * var(--step-scale));
  transition-duration: .05s;
}

.free-practice-card span {
  grid-column: 1;
  align-self: end;
  width: fit-content;
  padding: calc(9px * var(--step-scale)) calc(17px * var(--step-scale));
  border-radius: calc(12px * var(--step-scale));
  background: #7a3f00;
  color: #ffffff;
  font-size: calc(0.95rem * var(--step-scale));
  font-weight: 900;
}

.free-practice-card h3 {
  grid-column: 1;
  align-self: start;
  margin: calc(6px * var(--step-scale)) 0 0;
  font-size: calc(1.7rem * var(--step-scale));
  line-height: 1.25;
}

.free-practice-card p {
  grid-column: 2;
  grid-row: 1 / 3;
  color: var(--color-text-sub);
  font-size: calc(1.08rem * var(--step-scale));
  line-height: 1.6;
  font-weight: 800;
  word-break: keep-all;
}

body.font-large .step-card-1,
body.font-xlarge .step-card-1 {
  transform: translateX(calc(-10px * var(--step-scale)));
}

body.font-large .step-card-3,
body.font-xlarge .step-card-3 {
  transform: translateX(calc(10px * var(--step-scale)));
}

@media (min-width: 1501px) {
  body.font-large .hero-inner {
    grid-template-columns: minmax(0, calc(800px * var(--home-gap-scale))) 520px;
    gap: calc(104px * var(--home-gap-scale));
  }

  body.font-large .continue-card {
    min-height: 460px;
  }

  body.font-large .continue-card span {
    font-size: 1.2rem;
  }

  body.font-large .continue-card h2 {
    font-size: 2.65rem;
  }

  body.font-large .continue-card a {
    font-size: 1.32rem;
  }

  body.font-xlarge .hero-inner {
    grid-template-columns: minmax(0, calc(780px * var(--home-gap-scale))) 620px;
    gap: calc(84px * var(--home-gap-scale));
  }

  body.font-xlarge .continue-card {
    min-height: 540px;
  }

  body.font-xlarge .continue-card span {
    font-size: 1.38rem;
  }

  body.font-xlarge .continue-card h2 {
    font-size: 3.1rem;
  }

  body.font-xlarge .continue-card a {
    font-size: 1.52rem;
  }
}

@media (max-width: 1500px) {
  .hero-inner {
    width: min(calc(100% - 96px), var(--container-width));
    grid-template-columns: minmax(0, 1fr) minmax(340px, calc(390px * var(--hero-card-scale)));
    gap: calc(64px * var(--home-gap-scale));
  }

  .hero-text {
    min-width: 0;
  }

  .hero-text h1 {
    font-size: clamp(calc(2.7rem * var(--home-scale)),
        calc(3.8vw * var(--home-scale)),
        calc(4rem * var(--home-scale)));
  }

  .hero-text h1 span {
    white-space: normal;
  }

  .continue-card {
    min-width: 0;
    max-width: 100%;
  }

  .step-card {
    aspect-ratio: 1.42;
    padding-top: calc(42px * var(--step-scale));
    padding-bottom: calc(42px * var(--step-scale));
  }

  .step-card h3 {
    margin-top: calc(28px * var(--step-scale));
  }

  .progress-line {
    margin-top: calc(34px * var(--step-scale));
  }

  .advanced-card-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .free-practice-card {
    grid-column: 1 / -1;
  }
}

@media (max-width: 1360px) {

  .step-title-row,
  .step-card-list,
  .advanced-card-list {
    width: 100%;
    left: auto;
    transform: none;
  }

  .step-title-row {
    grid-template-columns: minmax(420px, calc(560px * var(--step-scale))) minmax(0, 1fr);
    gap: calc(56px * var(--step-scale));
  }

  .step-card-list,
  .advanced-card-list {
    gap: calc(30px * var(--step-scale));
  }

  .advanced-card-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .free-practice-card {
    grid-column: 1 / -1;
  }

  body.font-large .step-card-1,
  body.font-xlarge .step-card-1,
  body.font-large .step-card-3,
  body.font-xlarge .step-card-3 {
    transform: none;
  }
}

@media (max-width: 1024px) {
  .hero-inner {
    width: min(calc(100% - 48px), var(--container-width));
    grid-template-columns: 1fr;
    gap: calc(48px * var(--home-scale));
    align-items: start;
    padding-top: calc(90px * var(--home-scale));
  }

  .continue-card {
    width: 100%;
    max-width: min(100%, calc(420px * var(--hero-card-scale)));
    justify-self: center;
  }

  .step-title-row {
    width: 100%;
    left: auto;
    transform: none;
    grid-template-columns: 1fr;
    gap: calc(28px * var(--step-scale));
  }

  .step-card-list {
    width: 100%;
    left: auto;
    transform: none;
    gap: calc(24px * var(--step-scale));
  }

  .advanced-card-list {
    width: 100%;
    left: auto;
    transform: none;
  }

  body.font-large .step-card-1,
  body.font-xlarge .step-card-1,
  body.font-large .step-card-3,
  body.font-xlarge .step-card-3 {
    transform: none;
  }

  .step-title-row p {
    justify-self: start;
    translate: none;
  }

  .step-title-row p span {
    white-space: normal;
  }
}

@media (max-width: 1180px) {
  .advanced-card-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .free-practice-card {
    grid-column: 1 / -1;
    min-height: calc(180px * var(--step-scale));
  }
}

@media (max-width: 768px) {
  .home-pattern-left {
    width: 420px;
    height: 420px;
    left: -230px;
    top: -90px;
  }

  .home-pattern-right {
    width: 260px;
    height: 260px;
    right: -120px;
  }

  .hero-inner {
    width: min(calc(100% - 48px), var(--container-width));
    padding: calc(70px * var(--home-scale)) 0 calc(130px * var(--home-scale));
  }

  .hero-text h1 {
    font-size: calc(2.6rem * var(--home-scale));
  }

  .hero-text h1 span {
    white-space: normal;
  }

  .continue-card {
    max-width: 100%;
    min-height: calc(240px * var(--hero-card-scale));
  }

  .step-section {
    padding: calc(82px * var(--step-scale)) 0 calc(110px * var(--step-scale));
  }

  .step-section .container {
    width: min(calc(100% - 40px), var(--container-width));
  }

  body.font-xlarge .step-section .container {
    width: min(calc(100% - 56px), var(--container-width));
  }

  .step-card-list,
  .advanced-card-list {
    width: 100%;
    max-width: 100%;
    grid-template-columns: 1fr;
  }

  .step-card {
    width: 100%;
    aspect-ratio: auto;
    box-sizing: border-box;
    min-height: calc(240px * var(--step-scale));
  }

  .advanced-card {
    width: 100%;
    aspect-ratio: auto;
    box-sizing: border-box;
    min-height: calc(150px * var(--step-scale));
  }

  .free-practice-card {
    width: 100%;
    height: auto;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: calc(18px * var(--step-scale));
    min-height: calc(180px * var(--step-scale));
  }

  .free-practice-card h3 {
    margin: 0;
  }

  .free-practice-card span {
    align-self: flex-start;
  }

  .free-practice-card p {
    grid-column: auto;
    grid-row: auto;
    margin: 0;
  }
}

@media (max-width: 480px) {
  .hero-inner {
    width: min(calc(100% - 32px), var(--container-width));
  }

  .step-section .container,
  body.font-xlarge .step-section .container {
    width: min(calc(100% - 32px), var(--container-width));
  }
}

@media (prefers-reduced-motion: reduce) {

  .step-card,
  .advanced-card,
  .free-practice-card,
  .continue-card,
  .step-card::after {
    transition: none;
  }

  .step-card:hover,
  .step-card:focus-visible,
  .step-card:active,
  .advanced-card:hover,
  .advanced-card:focus-visible,
  .advanced-card:active,
  .free-practice-card:hover,
  .free-practice-card:focus-visible,
  .free-practice-card:active,
  .continue-card:hover,
  .continue-card:focus-within {
    translate: 0 0;
  }
}