/* =============================================
   PORTFOLIO — Web Designer
   style.css
   ============================================= */

/* ── Variables ── */
:root {
  --yellow: #F5C800;
  --black:  #111111;
  --white:  #FFFFFF;
  --gray:   #F4F4F4;
  --mid:    #888888;
  --text:   #222222;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--white);
  color: var(--text);
  font-family: 'Pretendard', sans-serif;
  overflow-x: hidden;
  cursor: none;
}

/* =============================================
   CURSOR
   ============================================= */
#cur {
  width: 12px; height: 12px;
  background: var(--yellow);
  border-radius: 50%;
  position: fixed; top: 0; left: 0;
  pointer-events: none; z-index: 9999;
  transition: width .2s, height .2s;
  mix-blend-mode: multiply;
}
#cur.big { width: 52px; height: 52px; opacity: .55; }

/* =============================================
   NAV
   ============================================= */
nav {
  position: fixed; top: 0; width: 100%;
  display: flex; justify-content: space-between; align-items: center;
  padding: 0 60px;
  height: 68px;
  background: var(--white);
  border-bottom: 2px solid var(--black);
  z-index: 100;
}
.nav-logo {
  font-family: 'Pretendard', sans-serif; font-weight: 900;
  font-size: 1.5rem;
  letter-spacing: 0.06em;
  color: var(--black);
  text-decoration: none;
}
.nav-logo span { color: var(--yellow); }

.nav-links { display: flex; gap: 40px; list-style: none; }
.nav-links a {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--black);
  text-decoration: none;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute; bottom: -3px; left: 0;
  width: 0; height: 2px;
  background: var(--yellow);
  transition: width .3s;
}
.nav-links a:hover::after { width: 100%; }

.nav-badge {
  font-family: 'Pretendard', sans-serif; font-variant-numeric: tabular-nums; letter-spacing: 0.06em;
  font-size: 0.72rem;
  background: var(--yellow);
  color: var(--black);
  padding: 5px 14px;
  letter-spacing: 0.08em;
  font-weight: 500;
}

/* =============================================
   HERO  ─  Full-width editorial layout
   ============================================= */
#hero {
  min-height: 100vh;
  padding-top: 68px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  position: relative;
  overflow: hidden;
  background: var(--white);
}

/* large yellow background block */
.hero-bg-block {
  position: absolute;
  top: 68px; right: 0;
  width: 38%; height: 58%;
  background: var(--yellow);
  z-index: 0;
}

/* small accent squares */
.y-sq {
  position: absolute;
  background: var(--yellow);
  z-index: 0;
}
.y-sq-1 { width: 22px; height: 22px; bottom: 80px; left: 60px; }
.y-sq-2 { width: 12px; height: 12px; top: 120px;  left: 300px; }

.hero-content {
  position: relative;
  z-index: 1;
  padding: 60px 60px 0;
}

.hero-tag {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: 'Pretendard', sans-serif; font-variant-numeric: tabular-nums; letter-spacing: 0.06em;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 28px;
  opacity: 0; animation: fadeUp .6s ease .1s forwards;
}
.hero-tag::before {
  content: '';
  width: 28px; height: 3px;
  background: var(--yellow);
}

.hero-name {
  font-family: 'Pretendard', sans-serif; font-weight: 900;
  font-size: clamp(5.5rem, 13vw, 14rem);
  line-height: 0.88;
  letter-spacing: -0.04em;
  color: var(--black);
  opacity: 0; animation: fadeUp .7s ease .15s forwards;
}

.hero-role-row {
  display: flex;
  align-items: center;
  gap: 32px;
  margin-top: 16px;
  opacity: 0; animation: fadeUp .7s ease .25s forwards;
}
.hero-role {
  font-family: 'Pretendard', sans-serif; font-weight: 900;
  font-size: clamp(1.8rem, 4vw, 4rem);
  letter-spacing: 0.04em;
  color: var(--yellow);
  /* yellow text sits on white — outline for contrast */
  -webkit-text-stroke: 1.5px var(--black);
}
.hero-role-line {
  flex: 1;
  height: 2px;
  background: var(--black);
  max-width: 200px;
}

/* bottom bar */
.hero-bottom {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: stretch;
  border-top: 2px solid var(--black);
  margin-top: 48px;
}
.hero-desc-cell {
  flex: 1;
  padding: 36px 60px;
  border-right: 2px solid var(--black);
  opacity: 0; animation: fadeUp .7s ease .35s forwards;
}
.hero-desc-cell p {
  font-size: 0.95rem;
  line-height: 1.8;
  color: #555;
  font-weight: 300;
  max-width: 480px;
}
.hero-btns-cell {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 36px 60px;
  border-right: 2px solid var(--black);
  opacity: 0; animation: fadeUp .7s ease .45s forwards;
}
.hero-scroll-cell {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 36px 40px;
  font-family: 'Pretendard', sans-serif; font-variant-numeric: tabular-nums; letter-spacing: 0.06em;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--mid);
  opacity: 0; animation: fadeUp .7s ease .55s forwards;
}
.scroll-line { width: 36px; height: 1px; background: var(--mid); }

/* Buttons */
.btn-primary {
  background: var(--black);
  color: var(--white);
  padding: 14px 30px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  border: 2px solid var(--black);
  white-space: nowrap;
  transition: background .2s, color .2s;
}
.btn-primary:hover { background: var(--yellow); color: var(--black); }

.btn-secondary {
  background: transparent;
  color: var(--black);
  padding: 14px 30px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  border: 2px solid var(--black);
  white-space: nowrap;
  transition: background .2s;
}
.btn-secondary:hover { background: var(--yellow); }

/* Corner brackets */
.bracket {
  position: absolute;
  width: 22px; height: 22px;
  border-color: var(--black);
  border-style: solid;
}
.bracket.tl { top: 12px; left: 12px;   border-width: 2px 0 0 2px; }
.bracket.br { bottom: 12px; right: 12px; border-width: 0 2px 2px 0; }

/* ── Keyframes ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* =============================================
   SECTION COMMONS
   ============================================= */
.sec-wrap { padding: 120px 60px; }

.section-header {
  display: flex;
  align-items: flex-end;
  margin-bottom: 64px;
  padding-bottom: 24px;
  border-bottom: 2px solid var(--black);
}
.section-num {
  font-family: 'Pretendard', sans-serif; font-variant-numeric: tabular-nums; letter-spacing: 0.06em;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--mid);
  margin-bottom: 8px;
}
.section-title {
  font-family: 'Pretendard', sans-serif; font-weight: 900;
  font-size: clamp(2.8rem, 4.5vw, 4.2rem);
  letter-spacing: -0.03em;
  line-height: 1;
}
.section-title .hl { color: var(--yellow); }

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal.d1 { transition-delay: .1s; }
.reveal.d2 { transition-delay: .2s; }
.reveal.d3 { transition-delay: .3s; }

/* =============================================
   ABOUT
   ============================================= */
#about {
  background: var(--black);
  color: var(--white);
  position: relative;
  overflow: hidden;
}
#about .section-title  { color: var(--white); }
#about .section-num    { color: rgba(255,255,255,.3); }
#about .section-header { border-bottom-color: rgba(255,255,255,.12); }

.about-bg-y {
  position: absolute;
  width: 100px; height: 100px;
  background: var(--yellow);
  opacity: .07;
  top: -20px; right: 60px;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.about-text p {
  font-size: 0.95rem;
  line-height: 1.9;
  color: rgba(255,255,255,.6);
  font-weight: 300;
  margin-bottom: 18px;
}
.about-text p strong { color: var(--yellow); font-weight: 700; }

.about-tools-title {
  font-family: 'Pretendard', sans-serif; font-variant-numeric: tabular-nums; letter-spacing: 0.06em;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,.3);
  margin: 36px 0 14px;
}
.tools-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}
.tool-item {
  border: 1px solid rgba(255,255,255,.15);
  padding: 11px 8px;
  text-align: center;
  font-size: 0.72rem;
  font-weight: 500;
  color: rgba(255,255,255,.65);
  transition: all .2s;
  cursor: default;
  letter-spacing: 0.04em;
}
.tool-item:hover { background: var(--yellow); color: var(--black); border-color: var(--yellow); }

.about-keyword-list { list-style: none; }
.about-keyword-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  border-bottom: 1px solid rgba(255,255,255,.08);
  font-family: 'Pretendard', sans-serif; font-weight: 900;
  font-size: 1.9rem;
  letter-spacing: 0.04em;
  color: rgba(255,255,255,.18);
  transition: color .25s;
}
.about-keyword-list li:hover { color: var(--yellow); }
.about-keyword-list li .sub {
  font-family: 'Pretendard', sans-serif; font-variant-numeric: tabular-nums; letter-spacing: 0.06em;
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,.25);
  font-weight: 400;
}

/* =============================================
   PROJECTS
   ============================================= */
#projects { background: var(--white); }

.projects-list { display: flex; flex-direction: column; }

.project-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 2px solid var(--black);
  border-bottom: none;
  position: relative;
  transition: background .2s;
}
.project-item:last-child { border-bottom: 2px solid var(--black); }
.project-item:hover { background: #fafafa; }

.project-screenshot {
  border-right: 2px solid var(--black);
  overflow: hidden;
  position: relative;
  height: 300px;
  background: var(--gray);
  display: flex; align-items: center; justify-content: center;
}
.project-screenshot img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: top;
  transition: transform .5s ease;
  display: block;
}
.project-item:hover .project-screenshot img { transform: scale(1.04); }

.screenshot-placeholder {
  width: 100%; height: 100%;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 14px;
  background: linear-gradient(135deg, #efefef 0%, #e0e0e0 100%);
}
.screenshot-placeholder .icon { font-size: 3rem; }
.screenshot-placeholder .hint {
  font-family: 'Pretendard', sans-serif; font-variant-numeric: tabular-nums; letter-spacing: 0.06em;
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  color: #aaa;
  text-transform: uppercase;
  text-align: center;
  line-height: 1.6;
}

.project-screenshot::before {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 28px; height: 28px;
  background: var(--yellow);
  z-index: 2;
}

.project-info {
  padding: 44px 52px;
  display: flex; flex-direction: column; justify-content: center;
  position: relative;
}
.project-info .y-corner {
  position: absolute; top: 0; right: 0;
  width: 20px; height: 20px;
  background: var(--yellow);
}

.project-num {
  font-family: 'Pretendard', sans-serif; font-variant-numeric: tabular-nums; letter-spacing: 0.06em;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--mid);
  margin-bottom: 14px;
  display: flex; align-items: center; gap: 10px;
}
.project-num::after { content: ''; width: 36px; height: 1px; background: var(--mid); }

.project-name {
  font-family: 'Pretendard', sans-serif; font-weight: 900;
  font-size: 2.2rem;
  letter-spacing: 0.02em;
  line-height: 1.05;
  margin-bottom: 8px;
}
.project-type {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--mid);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 18px;
  display: flex; align-items: center; gap: 8px;
}
.project-type::before {
  content: ''; width: 6px; height: 6px;
  background: var(--yellow); display: block; flex-shrink: 0;
}

.project-desc {
  font-size: 0.88rem;
  line-height: 1.85;
  color: #555;
  font-weight: 300;
  margin-bottom: 26px;
}
.project-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.p-tag {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 5px 12px;
  border: 1.5px solid var(--black);
  transition: all .2s;
}
.p-tag:hover { background: var(--yellow); border-color: var(--yellow); }

/* Alternate layout — even items flip screenshot to right */
.project-item:nth-child(even) .project-screenshot {
  order: 2;
  border-right: none;
  border-left: 2px solid var(--black);
}
.project-item:nth-child(even) .project-info { order: 1; }

/* =============================================
   CONTACT
   ============================================= */
#contact {
  background: var(--yellow);
  position: relative;
  overflow: hidden;
}

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.contact-left .section-num    { color: rgba(0,0,0,.4); }
.contact-left .section-header { border-bottom-color: rgba(0,0,0,.2); }
.contact-left .section-title  { color: var(--black); }
.contact-left .section-title .hl {
  color: transparent;
  -webkit-text-stroke: 2.5px var(--black);
}

.contact-desc {
  font-size: 0.95rem;
  line-height: 1.85;
  color: rgba(0,0,0,.55);
  font-weight: 300;
  margin-bottom: 36px;
}
.contact-email-link {
  font-family: 'Pretendard', sans-serif; font-weight: 900;
  font-size: 1.5rem;
  letter-spacing: 0.04em;
  color: var(--black);
  text-decoration: none;
  display: flex; align-items: center; gap: 16px;
  margin-bottom: 36px;
  border-bottom: 3px solid var(--black);
  padding-bottom: 14px;
  transition: opacity .2s;
}
.contact-email-link:hover { opacity: .55; }

.social-row { display: flex; gap: 10px; }
.soc {
  width: 46px; height: 46px;
  border: 2px solid var(--black);
  display: flex; align-items: center; justify-content: center;
  color: var(--black);
  text-decoration: none;
  font-size: 0.75rem;
  font-weight: 700;
  font-family: 'Pretendard', sans-serif; font-variant-numeric: tabular-nums; letter-spacing: 0.06em;
  letter-spacing: 0.04em;
  transition: background .2s, color .2s;
}
.soc:hover { background: var(--black); color: var(--yellow); }

.contact-box {
  background: var(--black);
  color: var(--white);
  padding: 44px;
  position: relative;
}
.contact-box::after {
  content: '';
  position: absolute;
  bottom: -10px; right: -10px;
  width: 100%; height: 100%;
  border: 2px solid var(--black);
  z-index: -1;
}
.cbox-label {
  font-family: 'Pretendard', sans-serif; font-variant-numeric: tabular-nums; letter-spacing: 0.06em;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,.3);
  text-transform: uppercase;
  margin-bottom: 22px;
}
.cbox-item {
  padding: 16px 0;
  border-bottom: 1px solid rgba(255,255,255,.08);
  display: flex; align-items: center; gap: 14px;
}
.cbox-item:last-child { border-bottom: none; padding-bottom: 0; }
.cbox-icon { font-size: 1.1rem; flex-shrink: 0; }
.cbox-text { font-size: 0.85rem; color: rgba(255,255,255,.6); font-weight: 300; }
.cbox-text strong { color: var(--yellow); font-weight: 600; }

/* =============================================
   FOOTER
   ============================================= */
footer {
  background: var(--black);
  color: rgba(255,255,255,.25);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 60px;
  font-size: 0.72rem;
  font-family: 'Pretendard', sans-serif; font-variant-numeric: tabular-nums; letter-spacing: 0.06em;
  letter-spacing: 0.06em;
  border-top: 1px solid rgba(255,255,255,.06);
}
footer .yl { color: var(--yellow); }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 900px) {
  nav { padding: 0 24px; }
  .nav-links { gap: 18px; }
  .nav-badge { display: none; }

  .hero-content { padding: 40px 24px 0; }
  .hero-bottom { flex-direction: column; }
  .hero-desc-cell,
  .hero-btns-cell,
  .hero-scroll-cell { padding: 24px; border-right: none; border-bottom: 2px solid var(--black); }
  .hero-scroll-cell { border-bottom: none; }

  .sec-wrap { padding: 80px 24px; }
  .about-grid,
  .contact-inner { grid-template-columns: 1fr; gap: 48px; }

  .project-item { grid-template-columns: 1fr; }
  .project-screenshot {
    border-right: none !important;
    border-left:  none !important;
    border-bottom: 2px solid var(--black);
    height: 220px;
  }
  .project-item:nth-child(even) .project-screenshot { order: 1; }
  .project-item:nth-child(even) .project-info       { order: 2; }
  .project-info { padding: 28px 24px; }

  .tools-grid { grid-template-columns: repeat(3, 1fr); }
  footer { flex-direction: column; gap: 8px; text-align: center; padding: 20px 24px; }
}