/* nav */
.nav-logo {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text);
  text-decoration: none;
}
.nav-logo span {
  color: var(--accent);
}
.nav-list {
  display: flex;
  gap: 2rem;
  list-style: none;
}
.nav-list .nav-item a {
  font-size: 0.78rem;
  color: var(--color-muted);
  text-decoration: none;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color 0.2s;
  font-family: var(--font-display);
}
.nav-list .nav-item a:hover {
  color: var(--accent);
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 0.5rem;
  cursor: pointer;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  transition: transform 0.3s, opacity 0.3s;
}

/* 열렸을 때 X 모양 */
.nav-hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-hamburger.open span:nth-child(2) {
  opacity: 0;
}
.nav-hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* hero */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(
      ellipse 55% 50% at 82% 18%,
      rgba(26, 92, 56, 0.06) 0%,
      transparent 60%
    ),
    radial-gradient(
      ellipse 40% 40% at 18% 82%,
      rgba(34, 192, 105, 0.04) 0%,
      transparent 60%
    );
}
.hero-grid-lines {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(0, 0, 0, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
}
.hero-eyebrow {
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  opacity: 0;
  animation: fadeUp 0.5s 0.3s forwards;
}
.hero-eyebrow::before {
  content: "";
  display: block;
  width: 2rem;
  height: 1px;
  background: var(--accent);
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 6.5vw, 5.8rem);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  margin-bottom: 2rem;
  opacity: 0;
  animation: fadeUp 0.6s 0.45s forwards;
}
.hero-title .line2 {
  color: var(--accent);
}
.hero-title .line3 {
  color: var(--color-muted);
  font-weight: 400;
  font-size: 0.48em;
  text-transform: none;
  letter-spacing: 0;
  font-family: var(--font-body);
}
.hero-bottom {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  opacity: 0;
  animation: fadeUp 0.6s 0.6s forwards;
}
.hero-desc {
  font-size: 0.95rem;
  color: var(--color-muted);
  max-width: 515px;
  line-height: 1.75;
  font-weight: 300;
}
.hero-desc strong {
  color: var(--color-text);
  font-weight: 500;
}
.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--accent);
  color: #fff;
  padding: 1rem 2rem;
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  transition:
    transform 0.2s,
    box-shadow 0.2s;
  white-space: nowrap;
  flex-shrink: 0;
}
.hero-cta:hover {
  transform: translate(-2px, -2px);
  box-shadow: 4px 4px 0 var(--accent-vivid);
}

/* section */
.section-num {
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.section-num::after {
  content: "";
  flex: 1;
  max-width: 3rem;
  height: 1px;
  background: var(--accent);
  opacity: 0.35;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.section-title .hi {
  color: var(--accent);
}
.section-desc {
  font-size: 0.92rem;
  color: var(--color-muted);
  max-width: 480px;
  line-height: 1.8;
  margin-bottom: 3.5rem;
  font-weight: 300;
}

/* ABOUT */

.about-card {
  background: #fff;
  border: 1px solid var(--color-border);
  padding: 2rem;
  position: relative;
  overflow: hidden;
  transition:
    border-color 0.2s,
    box-shadow 0.2s;
}
.about-card:hover {
  border-color: rgba(26, 92, 56, 0.3);
  box-shadow: 0 6px 24px rgba(26, 92, 56, 0.07);
}
.about-card::before {
  content: attr(data-num);
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  font-family: var(--font-display);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--color-muted);
  opacity: 0.5;
}
.about-card-icon {
  font-size: 1.75rem;
  margin-bottom: 1rem;
}
.about-card-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.6rem;
  color: var(--color-text);
}
.about-card-desc {
  font-size: 0.85rem;
  color: var(--color-muted);
  line-height: 1.7;
  font-weight: 300;
}
.about-card.wide {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 2rem;
  background: var(--accent);
  border-color: var(--accent);
}
.about-card.wide .about-card-icon {
  font-size:2.5rem;
  flex-shrink:0;
}
.about-card.wide .quote {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.4;
}
.about-card.wide .quote .hl {
  color: var(--accent-vivid);
}

/* SKILLS */
.skills-list {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--color-border);
  background: #fff;
}
.skill-row {
  display: flex;
  align-items: center;
  /* gap: 2rem; */
  padding: 1.35rem 2rem;
  border-bottom: 1px solid var(--color-border);
  transition: background 0.2s;
}
.skill-row:last-child {
  border-bottom: none;
}
.skill-row:hover {
  background: var(--color-surface);
}
.skill-row-name {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  min-width: 210px;
  color: var(--color-text);
  flex-shrink: 0;
}

/* .skill-row-bar {
  flex: 1;
  height: 2px;
  background: var(--color-border);
  position: relative;
}
.skill-row-fill {
  height: 100%;
  background: var(--accent);
  position: relative;
}
.skill-row-fill::after {
  content: "";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translate(50%, -50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}
.skill-row-pct {
  font-family: var(--font-display);
  font-size: 0.78rem;
  color: var(--accent);
  min-width: 3rem;
  text-align: right;
  font-weight: 700;
} */
.skill-row-tag {
  font-size: 0.72rem;
  color: var(--color-muted);
  min-width: 120px;
  /* text-align: right; */
  flex: 1;
}
.skill-row-tag .highlight {
  color: var(--accent);
  font-weight: 500;
}

/* WORK */
.work-card {
  background: #fff;
  border: 1px solid var(--color-border);
  padding: 3rem;
  position: relative;
  overflow: hidden;
  transition:
    border-color 0.2s,
    box-shadow 0.2s;
}
.work-card:hover {
  border-color: rgba(26, 92, 56, 0.25);
  box-shadow: 0 8px 32px rgba(26, 92, 56, 0.07);
}
.work-card-corner {
  position: absolute;
  top: 0;
  right: 0;
  width: 80px;
  height: 80px;
  background: linear-gradient(
    225deg,
    rgba(26, 92, 56, 0.06) 0%,
    transparent 60%
  );
}
.work-year {
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}
.work-company-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 0.3rem 0.8rem;
  margin-bottom: 1.5rem;
}
.work-title {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  margin-bottom: 0.5rem;
  line-height: 1.1;
  color: var(--color-text);
}
.work-subtitle {
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 1.25rem;
}
.work-desc {
  font-size: 0.9rem;
  color: var(--color-muted);
  line-height: 1.8;
  margin-bottom: 2rem;
  font-weight: 300;
  max-width: 650px;
}
.work-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.work-tag {
  font-size: 0.72rem;
  padding: 0.3rem 0.75rem;
  border: 1px solid var(--color-border-strong);
  color: var(--color-muted);
  font-family: var(--font-display);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition:
    border-color 0.2s,
    color 0.2s;
}

/* WORK PF LINK */
.work-pf-link-row {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}
.work-pf-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  text-decoration: none;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 0.85rem 1.25rem;
  transition:
    border-color 0.2s,
    box-shadow 0.2s;
}
.work-pf-link:hover {
  border-color: rgba(26, 92, 56, 0.3);
  box-shadow: 0 4px 16px rgba(26, 92, 56, 0.07);
}
.work-pf-link-icon {
  font-size: 1.1rem;
}
.work-pf-link-text {
  font-size: 0.85rem;
  color: var(--color-text);
  font-weight: 400;
  flex: 1;
}
.work-pf-link-arrow {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 700;
  transition: transform 0.2s;
}
.work-pf-link:hover .work-pf-link-arrow {
  transform: translateX(3px);
}

/* PORTFOLIO */
.pf-card {
  background: #fff;
  border: 1px solid var(--color-border);
  padding: 2rem;
  position: relative;
  transition:
    border-color 0.2s,
    box-shadow 0.2s;
  display: flex;
  flex-direction: column;
}
.pf-card:hover {
  border-color: rgba(26, 92, 56, 0.3);
  box-shadow: 0 6px 24px rgba(26, 92, 56, 0.07);
}
.pf-num {
  font-family: var(--font-display);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 1.25rem;
}
.pf-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}
.pf-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin-bottom: 0.6rem;
  color: var(--color-text);
  line-height: 1.2;
}
.pf-desc {
  font-size: 0.83rem;
  color: var(--color-muted);
  line-height: 1.7;
  font-weight: 300;
  flex: 1;
  margin-bottom: 1.5rem;
}
.pf-status {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-display);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
}
.pf-status.ready {
  color: var(--accent);
}
.pf-status.inprogress {
  color: #c07a00;
}
.pf-status.optional {
  color: var(--color-muted);
}
.pf-status::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}
.pf-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.75rem;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  text-decoration: none;
  transition: gap 0.2s;
}
.pf-link:hover {
  gap: 0.7rem;
}
.pf-card.featured {
  grid-column: 1 / -1;
  flex-direction: row;
  gap: 2.5rem;
  align-items: center;
  background: var(--color-surface);
}
.pf-card.featured .pf-body {
  flex: 1;
}
.pf-card.featured .pf-visual {
  width: 180px;
  height: 130px;
  flex-shrink: 0;
  background: var(--accent);
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}

/* CONTACT */
.contact-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse 60% 60% at 50% 0%,
    rgba(34, 192, 105, 0.15) 0%,
    transparent 60%
  );
}
.contact-section::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}
.contact-section > * {
  position: relative;
  z-index: 1;
}
.contact-big {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  line-height: 1;
  color: #fff;
  margin-bottom: 1.5rem;
}
.contact-big .hl {
  color: var(--accent-vivid);
}
.contact-desc {
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.6);
  /* margin-bottom: 3rem; */
  margin-bottom: 2rem;
  font-weight: 300;
}
.contact-email {
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.625rem;
  margin-bottom: 2rem;
}
.email-label {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.5);
}
.email-address {
  font-size: 1.25rem;
  font-weight: 500;
  color: #ffffff;
}
.contact-btns {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: #fff;
  color: var(--accent);
  padding: 0.9rem 2rem;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  transition:
    transform 0.2s,
    box-shadow 0.2s;
}
.btn-primary:hover {
  transform: translate(-2px, -2px);
  box-shadow: 4px 4px 0 var(--accent-strong);
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  border: 1.5px solid rgba(255, 255, 255, 0.35);
  color: rgba(255, 255, 255, 0.8);
  padding: 0.9rem 2rem;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  transition:
    border-color 0.2s,
    color 0.2s;
}
.btn-secondary:hover {
  border-color: #fff;
  color: #fff;
}

/* 반응형 */
@media (max-width: 768px) {
  nav {
    padding: 1rem 1.5rem;
  }
  .nav-links {
    display: none;
  }
  .nav-hamburger {
    display: flex;
  }

  .nav-list {
    display: none;
    position: fixed;
    top: 73px;
    left: 0;
    right: 0;
    bottom: 0;
    min-height: 100vh;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    padding: 3rem 0 0 3rem;
    gap: 1.5rem;
    background: var(--color-bg);
    z-index: 99;
  }

  .nav-list.open {
    display: flex;
  }

  .nav-list .nav-item a {
    font-size: 1.2rem;
  }
  .hero {
    padding: 0 1.5rem 4rem;
  }
  .hero-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
  .section-wrap {
    padding: 5rem 1.5rem;
  }
  .about-grid {
    grid-template-columns: 1fr;
  }
  .about-card.wide {
    flex-direction: column;
  }
  .skill-row-tag,
  .skill-row-name {
    min-width: unset;
  }
  /* .skill-row-tag {
    display: none;
  } */

  /*  */
  .skill-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .skill-row-name {
    width: 100%;
    margin-bottom: 8px;
  }

  .skill-row-tag {
    margin-left: 0;
  }
  /*  */

  .work-card {
    padding: 2rem 1.5rem;
  }
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
  .pf-card.featured {
    flex-direction: column;
  }
  .pf-card.featured .pf-visual {
    width: 100%;
  }
  .contact-section {
    padding: 3rem 1.5rem;
  }
}

/* TOP BUTTON */
.top-btn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 46px;
  height: 46px;
  background: var(--accent);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(26, 92, 56, 0.3);
  cursor: pointer;
  border: none;
  opacity: 0;
  transform: translateY(12px);
  transition:
    opacity 0.3s ease,
    transform 0.3s ease,
    background 0.2s;
  pointer-events: none;
  z-index: 200;
}
.top-btn.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.top-btn:hover {
  background: var(--accent-strong);
  transform: translateY(-2px);
}
.top-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}