/* ============================================
   PORTFOLIO — Kim Dohoon
   style.css — Global Tokens & Shared Styles
   ============================================ */

@font-face {
  font-family: 'PlayfairDisplay';
  src: url('../fonts/PlayfairDisplay-Regular.ttf') format('truetype');
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'PlayfairDisplay';
  src: url('../fonts/PlayfairDisplay-Italic.ttf') format('truetype');
  font-weight: 400; font-style: italic; font-display: swap;
}
@font-face {
  font-family: 'PlayfairDisplay';
  src: url('../fonts/PlayfairDisplay-Bold.ttf') format('truetype');
  font-weight: 700; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'PlayfairDisplay';
  src: url('../fonts/PlayfairDisplay-BoldItalic.ttf') format('truetype');
  font-weight: 700; font-style: italic; font-display: swap;
}

/* ── TOKENS ── */
:root {
  --bg:             #f5f2ec;
  --bg2:            #ede9e1;
  --bg3:            #e4e0d8;
  --text-primary:   #141210;
  --text-secondary: #3a3630;
  --text-muted:     #8a8580;
  --accent-green:   #1a6b3a;
  --accent-blue:    #1a3aaa;
  --border:         rgba(20, 18, 16, 0.1);
  --border-hover:   rgba(20, 18, 16, 0.2);
  --nav-h:          72px;
  --nav-h-mobile:   68px; /* 높이 올림 */

  --font-sans:  'Outfit', 'Pretendard', sans-serif;
  --font-serif: 'PlayfairDisplay', Georgia, serif;
  --font-mono:  'Outfit', 'Pretendard', monospace;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ── RESET ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ── NAV ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 24px 48px;
  height: var(--nav-h);
  background: #f5f2ec;
  border-bottom: 0.5px solid var(--border);
  transition: border-color 0.3s;
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  justify-self: start;
}
.nav-logo span { color: var(--text-primary); }

/* 백 버튼 */
.nav-back {
  justify-self: start;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 0.5px solid var(--border-hover);
  color: var(--text-secondary);
  font-size: 18px;
  transition: all 0.2s;
}
.nav-back:hover {
  color: var(--text-primary);
  border-color: var(--text-primary);
  background: rgba(20, 18, 16, 0.04);
}

/* 데스크탑 토글 */
.nav-links {
  justify-self: center;
  display: flex;
  list-style: none;
  background: rgba(20, 18, 16, 0.05);
  border: 0.5px solid var(--border-hover);
  border-radius: 999px;
  padding: 3px;
  position: relative;
}
.nav-indicator {
  position: absolute;
  background: rgba(20, 18, 16, 0.09);
  border-radius: 999px;
  pointer-events: none;
  z-index: 0;
}
.nav-links li { position: relative; z-index: 1; }
.nav-links li a {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  padding: 6px 18px;
  border-radius: 999px;
  transition: color 0.2s;
  position: relative;
  z-index: 1;
}
.nav-links li a:hover { color: var(--text-secondary); }
.nav-links li a.active { color: var(--text-primary); }

/* 모바일 토글 — 데스크탑에서 숨김 */
.nav-links-mobile { display: none; }

/* nav-right */
.nav-right {
  justify-self: end;
  display: flex;
  align-items: center;
}

/* Contact 버튼 */
.nav-cta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  border: 0.5px solid var(--border-hover);
  padding: 8px 20px;
  border-radius: 999px;
  text-transform: uppercase;
  transition: all 0.2s;
}
.nav-cta:hover {
  color: var(--text-primary);
  border-color: var(--text-primary);
  background: rgba(20, 18, 16, 0.04);
}

/* ── FOOTER ── */
footer {
  padding: 36px 48px;
  border-top: 0.5px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-left {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.footer-mail {
  font-size: 13px;
  color: var(--text-secondary);
  border-bottom: 0.5px solid var(--border);
  padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
}
.footer-mail:hover { color: var(--text-primary); border-color: var(--text-secondary); }

/* ── UTILITY ── */
.mono {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.tag {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  border: 0.5px solid var(--border);
  padding: 4px 12px;
  text-transform: uppercase;
  display: inline-block;
  border-radius: 999px;
}
.tag.hi { color: var(--accent-green); border-color: rgba(26, 107, 58, 0.3); }

/* ── PAGE TRANSITION ── */
.page-enter { animation: fadeUp 0.6s var(--ease-out) both; }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  nav {
    padding: 18px 20px; /* 상하 여백 늘림 */
    height: var(--nav-h-mobile);
    grid-template-columns: 1fr auto 1fr;
    background: #f5f2ec;
  }
  .nav-logo { font-size: 10px; letter-spacing: 0.1em; line-height: 1.4; justify-self: start; grid-column: 1; }
  .nav-back { width: 32px; height: 32px; font-size: 16px; justify-self: start; grid-column: 1; }
  .nav-links { display: none; }
  .nav-links-mobile {
    display: flex;
    justify-self: center;
    grid-column: 2;
    list-style: none;
    background: rgba(20, 18, 16, 0.05);
    border: 0.5px solid var(--border-hover);
    border-radius: 999px;
    padding: 3px;
  }
  .nav-links-mobile li a {
    display: block;
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    padding: 5px 12px;
    border-radius: 999px;
    transition: color 0.2s;
  }
  .nav-links-mobile li a.active {
    color: var(--text-primary);
    background: rgba(20, 18, 16, 0.09);
  }
  .nav-right { justify-self: end; grid-column: 3; }
  .nav-cta { font-size: 10px; padding: 6px 12px; }
  footer { padding: 28px 24px; flex-direction: column; gap: 16px; text-align: center; }
}

/* ── Playfair SemiBold Italic ── */
@font-face {
  font-family: 'PlayfairDisplay';
  src: url('../fonts/PlayfairDisplay-SemiBoldItalic.ttf') format('truetype');
  font-weight: 600; font-style: italic; font-display: swap;
}