/* 개인 포트폴리오 — 카드형, 밝은/어두운 화면은 기기 설정을 따른다. */

:root {
  --bg: #f6f7f8;
  --surface: #ffffff;
  --fg: #16181d;
  --muted: #5d636e;
  --border: #e3e5e9;
  --chip-bg: #eef1f3;
  --accent: #0b8a61;
  --accent-fg: #ffffff;
  --accent-soft: rgba(11, 138, 97, 0.1);
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.04), 0 8px 24px rgba(16, 24, 40, 0.06);
  --radius: 16px;
  --wrap: 960px;
  --font: "Pretendard", -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic",
    "Noto Sans KR", system-ui, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1013;
    --surface: #161a1f;
    --fg: #e8eaee;
    --muted: #9ba2ad;
    --border: #282d34;
    --chip-bg: #1f252c;
    --accent: #3ccf91;
    --accent-fg: #06150e;
    --accent-soft: rgba(60, 207, 145, 0.12);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.35);
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  word-break: keep-all;
  overflow-wrap: anywhere;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--accent);
}

a:focus-visible,
.btn:focus-visible,
.card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 20px;
}

/* ── 머리 · 바닥 ─────────────────────────────────────────── */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.site-brand {
  color: var(--fg);
  font-weight: 700;
  text-decoration: none;
  letter-spacing: -0.01em;
}

.site-nav {
  display: flex;
  gap: 20px;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 15px;
}

.site-nav a:hover {
  color: var(--fg);
}

.site-footer {
  margin-top: 96px;
  padding: 32px 0 48px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 14px;
}

/* ── 공통 조각 ───────────────────────────────────────────── */

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.chips li {
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--chip-bg);
  color: var(--fg);
  font-size: 14px;
  line-height: 1.6;
}

.chips--sm li {
  padding: 2px 10px;
  font-size: 13px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--fg);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.btn:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.btn--primary {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--accent-fg);
}

.note {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 14px;
}

/* ── 홈 ──────────────────────────────────────────────────── */

.hero {
  padding: 88px 0 56px;
}

.hero__name {
  margin: 0;
  font-size: clamp(36px, 6vw, 56px);
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.hero__headline {
  margin: 16px 0 0;
  font-size: clamp(19px, 2.4vw, 23px);
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: -0.01em;
}

.hero__intro {
  max-width: 640px;
  margin: 16px 0 0;
  color: var(--muted);
}

.section {
  padding: 40px 0;
}

.section__title {
  margin: 0 0 24px;
  font-size: 24px;
  letter-spacing: -0.02em;
}

.skills {
  display: grid;
  gap: 14px;
  margin: 0;
}

.skills__row {
  display: grid;
  grid-template-columns: 96px 1fr;
  align-items: start;
  gap: 16px;
}

.skills dt {
  padding-top: 4px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
}

.skills dd {
  margin: 0;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  color: inherit;
  text-decoration: none;
  transition: transform 0.18s ease, border-color 0.18s ease;
}

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

.card__img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-bottom: 1px solid var(--border);
}

.card__body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 20px 22px 22px;
}

.card__title {
  margin: 0;
  font-size: 21px;
  letter-spacing: -0.02em;
}

.card__summary {
  flex: 1;
  margin: 8px 0 16px;
  color: var(--muted);
  font-size: 15px;
}

.card__period {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 13px;
}

/* ── 프로젝트 상세 ───────────────────────────────────────── */

.project {
  max-width: 760px;
  margin: 0 auto;
  padding-top: 40px;
}

.back {
  display: inline-block;
  margin-bottom: 32px;
  color: var(--muted);
  font-size: 15px;
  text-decoration: none;
}

.back:hover {
  color: var(--fg);
}

.project__title {
  margin: 0;
  font-size: clamp(32px, 5vw, 44px);
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.project__subtitle {
  margin: 12px 0 20px;
  font-size: 19px;
  font-weight: 500;
  line-height: 1.55;
}

.shot {
  margin: 40px 0;
}

.shot img {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.shot figcaption {
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
  text-align: center;
}

.prose h2 {
  margin: 56px 0 16px;
  padding-top: 8px;
  font-size: 24px;
  letter-spacing: -0.02em;
}

.prose p,
.prose ul {
  margin: 0 0 16px;
}

.prose ul {
  padding-left: 1.2em;
}

.prose li {
  margin: 6px 0;
}

.prose li::marker {
  color: var(--accent);
}

.prose strong {
  font-weight: 700;
}

.prose h3 {
  margin: 32px 0 8px;
  font-size: 17px;
  letter-spacing: -0.01em;
}

.prose code {
  padding: 2px 6px;
  border-radius: 6px;
  background: var(--chip-bg);
  font-size: 0.9em;
}

/* ── 좁은 화면 ───────────────────────────────────────────── */

@media (max-width: 600px) {
  .hero {
    padding: 56px 0 32px;
  }

  .skills__row {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .site-nav {
    gap: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .btn,
  .card {
    transition: none;
  }
}