:root {
  --color-bg: #f7f5f2;
  --color-bg-soft: #fbfaf8;
  --color-text: #111111;
  --color-text-muted: #5f5a53;
  --color-border: #ddd8d0;
  --color-border-hover: #111111;
  --color-panel: #ffffff;
  --color-accent: #201f1b;

  --font-serif: "Playfair Display", serif;
  --font-sans: "Noto Sans KR", sans-serif;

  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 7rem;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

*:focus-visible {
  outline: 2px solid var(--color-text);
  outline-offset: 4px;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background:
    radial-gradient(1000px 520px at 85% -5%, #ece8e1 0%, transparent 65%),
    linear-gradient(180deg, var(--color-bg-soft) 0%, var(--color-bg) 52%, #f2eee8 100%);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  font-weight: 500;
  line-height: 1.08;
}

em {
  font-style: italic;
}

.section {
  max-width: 1320px;
  margin: 0 auto;
  padding: var(--spacing-xl) 5%;
}

.header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 1.2rem 5%;
  backdrop-filter: blur(12px);
  background: rgba(247, 245, 242, 0.82);
  border-bottom: 1px solid transparent;
  transition: border-color 0.35s ease;
}

.header:hover {
  border-bottom-color: var(--color-border);
}

.logo {
  text-decoration: none;
  color: var(--color-text);
  font-family: var(--font-serif);
  font-size: 1.6rem;
  letter-spacing: -0.03em;
}

.nav {
  display: none;
}

.nav a {
  text-decoration: none;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.76rem;
  padding-bottom: 4px;
  position: relative;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--color-text);
  transition: width 0.25s ease;
}

.nav a:hover::after {
  width: 100%;
}

.cta-button,
.cta-button-outline {
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.75rem;
  padding: 0.9rem 1.45rem;
  border: 1px solid var(--color-accent);
  display: inline-block;
  transition: all 0.28s ease;
}

.cta-button {
  background: var(--color-accent);
  color: #ffffff;
}

.cta-button:hover {
  background: transparent;
  color: var(--color-accent);
}

.cta-button-outline {
  background: transparent;
  color: var(--color-accent);
}

.cta-button-outline:hover {
  background: var(--color-accent);
  color: #ffffff;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(18px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero {
  max-width: 1320px;
  margin: 0 auto;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 0 5%;
}

.hero-content {
  max-width: 860px;
  padding-top: 4.2rem;
}

.eyebrow {
  font-size: 0.73rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--color-text-muted);
  margin-bottom: 1.15rem;
  animation: fadeUp 0.7s ease-out forwards;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.8rem, 8vw, 6.8rem);
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
  animation: fadeUp 0.78s ease-out forwards;
}

.hero-subtitle {
  font-size: clamp(1.02rem, 1.8vw, 1.34rem);
  color: var(--color-text-muted);
  max-width: 620px;
  margin-bottom: 2rem;
  opacity: 0;
  animation: fadeUp 0.8s ease-out 0.2s forwards;
}

.hero .cta-button {
  opacity: 0;
  animation: fadeUp 0.8s ease-out 0.36s forwards;
}

.section-title {
  font-size: 0.73rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  margin-bottom: 2.1rem;
  border-bottom: 1px solid var(--color-text);
  display: inline-block;
  padding-bottom: 0.45rem;
}

.works-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.work-step {
  border: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.56);
  padding: 1.3rem;
  transition: border-color 0.26s ease, transform 0.26s ease;
}

.work-step:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-3px);
}

.step-num {
  display: block;
  font-family: var(--font-serif);
  color: #bbb3a7;
  font-size: 2.6rem;
  margin-bottom: 0.5rem;
  transition: color 0.3s ease;
}

.work-step:hover .step-num {
  color: var(--color-text);
}

.work-step h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.work-step p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.plans-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.plan-card {
  border: 1px solid var(--color-border);
  background: var(--color-panel);
  padding: 1.55rem;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.plan-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-border-hover);
}

.plan-card.featured {
  background: #1a1916;
  color: #f7f5f2;
  border-color: #1a1916;
}

.plan-name {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  margin-bottom: 1rem;
}

.plan-price {
  font-family: var(--font-serif);
  font-size: 2.28rem;
  margin-bottom: 1.3rem;
}

.plan-price span {
  font-family: var(--font-sans);
  color: var(--color-text-muted);
  font-size: 1rem;
}

.plan-card.featured .plan-price span {
  color: #ada79e;
}

.plan-features {
  list-style: none;
}

.plan-features li {
  font-size: 0.93rem;
  padding: 0.88rem 0;
  border-bottom: 1px solid var(--color-border);
}

.plan-card.featured .plan-features li {
  border-bottom-color: #39352d;
}

.plan-features li:last-child {
  border-bottom: 0;
}

.faq-list {
  max-width: 920px;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

details {
  padding: 1.2rem 0;
}

summary {
  list-style: none;
  cursor: pointer;
  padding-right: 1.9rem;
  position: relative;
  font-size: 1.08rem;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.3rem;
}

details[open] summary::after {
  content: "-";
}

details p {
  margin-top: 0.75rem;
  color: var(--color-text-muted);
  padding-right: 1.9rem;
  line-height: 1.74;
}

.footer {
  max-width: 1320px;
  margin: 0 auto;
  padding: 2.3rem 5% 3.3rem;
  border-top: 1px solid var(--color-border);
}

.footer-content {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1.2rem;
}

.footer-logo {
  font-family: var(--font-serif);
  font-size: 1.2rem;
}

.footer-links {
  display: flex;
  gap: 1.15rem;
}

.footer-links a {
  text-decoration: none;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.footer-links a:hover {
  color: var(--color-text);
}

.footer-copy {
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #928b80;
}

@media (min-width: 768px) {
  .nav {
    display: flex;
    gap: var(--spacing-md);
  }

  .works-grid,
  .plans-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer-content {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

@media (max-width: 767px) {
  .header {
    padding: 0.95rem 4%;
  }

  .hero {
    min-height: 86vh;
    padding: 0 4%;
  }

  .section {
    padding: 3.6rem 4%;
  }

  .cta-button,
  .cta-button-outline {
    padding: 0.84rem 1.2rem;
  }
}