/* =========================================================
   Design tokens — White background · Black point
   ========================================================= */
:root {
  --bg: #ffffff;
  --surface: #f5f5f5;
  --surface-2: #ececec;
  --line: #e5e5e5;
  --line-strong: #d4d4d4;
  --ink: #0a0a0a;
  --text: #262626;
  --text-2: #525252;
  --text-3: #737373;
  --text-4: #a3a3a3;
  --ink-tint: rgba(10, 10, 10, 0.05);
  --shadow: 0 14px 30px -14px rgba(0, 0, 0, 0.28);

  --font-sans: 'Pretendard Variable', Pretendard, 'Inter', -apple-system, BlinkMacSystemFont, 'Apple SD Gothic Neo', 'Noto Sans KR', 'Noto Sans CJK KR', 'Segoe UI', sans-serif;
  --font-num: 'Inter', 'Pretendard Variable', Pretendard, sans-serif;

  --fz-xxs: 12px; --fz-xs: 13px; --fz-sm: 14px; --fz-md: 16px;
  --fz-lg: 18px; --fz-xl: 20px; --fz-heading: 32px;
  --radius: 6px;
  --sidebar: 100px;
  --ease: cubic-bezier(0.645, 0.045, 0.355, 1);
  --transition: all 0.25s var(--ease);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  font-size: var(--fz-md);
  line-height: 1.65;
  color: var(--text-2);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  word-break: keep-all;
}
img { max-width: 100%; display: block; }
strong, b { color: var(--ink); font-weight: 600; }
a { color: inherit; }
ul, ol { list-style: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
[hidden] { display: none !important; }
::selection { background: var(--ink); color: #fff; }

:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; border-radius: 3px; }
.skip-link {
  position: absolute; left: 12px; top: -48px; z-index: 1000;
  background: var(--ink); color: #fff; padding: 8px 14px; border-radius: var(--radius);
  text-decoration: none; font-size: var(--fz-sm); transition: top 0.2s;
}
.skip-link:focus { top: 12px; }

/* =========================================================
   Sidebar
   ========================================================= */
.sidebar {
  position: fixed; left: 0; top: 0; z-index: 100;
  width: var(--sidebar); height: 100vh;
  display: flex; flex-direction: column; align-items: center; justify-content: flex-start;
  padding: 40px 0 50px;
  background-color: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-right: 1px solid var(--line);
}
.pdf-btn {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  padding: 8px 10px; border: 1px solid var(--line-strong); border-radius: var(--radius);
  color: var(--text-2); font-family: var(--font-num); font-size: 11px; font-weight: 600;
  letter-spacing: 0.06em; text-decoration: none; transition: var(--transition);
}
.pdf-btn svg { width: 18px; height: 18px; transition: transform 0.25s var(--ease); }
.pdf-btn:hover { border-color: var(--ink); color: var(--ink); transform: translateY(-3px); }
.pdf-btn:hover svg { transform: translateY(2px); }

.logo {
  display: flex; align-items: center; justify-content: center;
  height: 56px; padding: 0 14px; border: 2px solid var(--ink); border-radius: 28px;
  color: var(--ink); font-family: var(--font-num); font-size: 13px; font-weight: 700;
  text-decoration: none; white-space: nowrap; transition: var(--transition);
}
.logo:hover { transform: translateY(-5px) rotate(5deg); box-shadow: 0 10px 30px -15px var(--ink); }

.nav-links {
  display: flex; flex-direction: column; gap: 46px;
  margin-top: clamp(165px, 24vh, 240px);
}
.nav-link {
  position: relative; display: block; padding: 10px;
  writing-mode: vertical-rl; text-orientation: mixed;
  color: var(--text-3); font-family: var(--font-num); font-size: var(--fz-xs);
  letter-spacing: 0.1em; text-decoration: none; transition: var(--transition);
}
.nav-link::after {
  content: ''; position: absolute; left: -18px; top: 50%; transform: translateY(-50%);
  width: 2px; height: 0; background-color: var(--ink); transition: var(--transition);
}
.nav-link:hover, .nav-link.is-active { color: var(--ink); transform: translateY(-3px); }
.nav-link.is-active { font-weight: 600; }
.nav-link.is-active::after { height: 100%; }

/* =========================================================
   Layout
   ========================================================= */
.main-wrapper { margin-left: var(--sidebar); min-height: 100vh; }
.section { max-width: 1120px; margin: 0 auto; padding: 110px 50px; }

.section-heading {
  display: flex; align-items: center; width: 100%;
  margin: 10px 0 48px;
  font-size: clamp(26px, 5vw, var(--fz-heading)); font-weight: 700;
  color: var(--ink); white-space: nowrap; letter-spacing: -0.02em;
}
.section-number { margin-right: 12px; font-family: var(--font-num); font-size: clamp(16px, 3vw, 20px); font-weight: 500; color: var(--text-4); }
.section-heading::after { content: ''; display: block; width: 300px; height: 1px; margin-left: 20px; background-color: var(--line-strong); }

/* =========================================================
   Buttons / lists
   ========================================================= */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 1.05rem 1.6rem; border: 1px solid var(--ink); border-radius: var(--radius);
  color: var(--ink); background: transparent; font-size: var(--fz-sm); font-weight: 600; line-height: 1;
  text-decoration: none; transition: var(--transition);
}
.btn:hover { background-color: var(--ink-tint); transform: translateY(-3px) scale(1.04); }
.btn-solid { background: var(--ink); color: #fff; }
.btn-solid:hover { background: #262626; box-shadow: var(--shadow); }

.tick-list li { position: relative; padding-left: 22px; margin-bottom: 6px; }
.tick-list li:last-child { margin-bottom: 0; }
.tick-list li::before { content: '▹'; position: absolute; left: 0; top: 0; color: var(--ink); }

/* =========================================================
   Hero
   ========================================================= */
.hero-section { min-height: 100vh; display: flex; align-items: center; max-width: 1280px; margin: 0 auto; padding: 60px 50px; }
.hero-container { display: grid; grid-template-columns: 1.25fr 1fr; gap: 64px; align-items: center; width: 100%; }
.greeting { margin-bottom: 18px; font-family: var(--font-num); font-size: var(--fz-md); font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-3); }
.hero-name { margin-bottom: 16px; font-size: clamp(44px, 8vw, 80px); font-weight: 800; line-height: 1.05; letter-spacing: -0.03em; color: var(--ink); }
.hero-name-en { margin-left: 14px; font-family: var(--font-num); font-size: clamp(13px, 2.2vw, 19px); font-weight: 400; letter-spacing: 0; color: var(--text-3); }
.hero-title { margin-bottom: 18px; font-size: clamp(24px, 4.2vw, 36px); font-weight: 700; line-height: 1.3; letter-spacing: -0.02em; color: var(--text); }
.hero-subtitle { font-size: var(--fz-lg); font-weight: 600; color: var(--ink); }
.hero-description { text-wrap: balance; max-width: 560px; margin-top: 24px; font-size: var(--fz-lg); line-height: 1.75; color: var(--text-2); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 44px; }

.hero-image-wrapper { display: flex; justify-content: center; }
.profile-frame { position: relative; width: 280px; max-width: 80%; aspect-ratio: 1 / 1; }
.profile-frame::before {
  content: ''; position: absolute; inset: 0; translate: 20px 20px;
  border: 2px solid var(--ink); border-radius: var(--radius); transition: var(--transition);
}
.profile-frame:hover::before { translate: 14px 14px; }
.profile-placeholder, .profile-image { position: absolute; inset: 0; border-radius: var(--radius); transition: var(--transition); }
.profile-placeholder {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px;
  background: repeating-linear-gradient(135deg, var(--surface) 0 12px, var(--surface-2) 12px 24px);
  border: 1px dashed var(--line-strong); color: var(--text-4); font-family: var(--font-num);
}
.profile-placeholder span { font-size: var(--fz-lg); font-weight: 700; letter-spacing: 0.3em; }
.profile-placeholder small { font-size: var(--fz-xxs); }
.profile-image { width: 100%; height: 100%; object-fit: cover; }
.profile-frame:hover .profile-image, .profile-frame:hover .profile-placeholder { translate: 0 -5px; }

/* =========================================================
   Projects
   ========================================================= */
.project {
  display: grid; grid-template-columns: repeat(12, 1fr); column-gap: 20px; align-items: start;
  margin-bottom: 120px;
}
.project:last-child { margin-bottom: 0; }
.project-head { grid-column: 1 / -1; grid-row: 1; max-width: 760px; margin-bottom: 28px; }
.project-head .project-desc { margin-bottom: 0; }
.project-media { grid-column: 1 / 7; grid-row: 2; position: sticky; top: 48px; }
.project-text { grid-column: 7 / -1; grid-row: 2; padding-left: 28px; }
.project.is-reverse .project-media { grid-column: 7 / -1; grid-row: 2; }
.project.is-reverse .project-text { grid-column: 1 / 7; grid-row: 2; padding-left: 0; padding-right: 28px; }

.zoomable {
  position: relative; display: block; width: 100%; overflow: hidden; cursor: zoom-in;
  border-radius: var(--radius); border: 1px solid var(--line); background: var(--surface);
  transition: var(--transition);
}
.zoomable img { width: 100%; height: auto; transition: filter 0.4s ease, transform 0.6s var(--ease); }
.zoomable:hover { border-color: var(--ink); box-shadow: var(--shadow); transform: translateY(-5px); }
.zoomable:hover img { transform: scale(1.025); }
.thumbs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 12px; }
.thumbs:has(> :nth-child(4)) { grid-template-columns: repeat(4, 1fr); }
.thumb { display: flex; flex-direction: column; }
.thumb img { aspect-ratio: 4 / 3; object-fit: cover; object-position: top; }
.thumb span { padding: 7px 10px; font-size: var(--fz-xxs); font-weight: 600; color: var(--text-2); background: var(--bg); border-top: 1px solid var(--line); transition: var(--transition); }
.thumb:hover span { color: var(--ink); }
.ai-badge { display: inline-block; margin-right: 6px; padding: 1px 6px; border-radius: 999px; background: var(--ink); color: var(--bg); font-family: var(--font-num); font-size: 10px; font-weight: 700; letter-spacing: 0.04em; vertical-align: 1px; }

.project-overline { font-family: var(--font-num); font-size: var(--fz-sm); font-weight: 500; color: var(--text-3); }
.project-title { margin: 4px 0 10px; font-size: clamp(26px, 3.4vw, 34px); font-weight: 800; letter-spacing: -0.03em; color: var(--ink); }
.project-desc {
  margin-bottom: 20px; padding: 18px 20px; border-radius: var(--radius);
  background: var(--surface); color: var(--text); font-size: var(--fz-md);
  transition: var(--transition);
}

.case { display: grid; grid-template-columns: 72px 1fr; column-gap: 14px; }
.case dt { padding: 12px 0; border-top: 1px solid var(--line); font-size: var(--fz-xs); font-weight: 700; color: var(--ink); }
.case dd { padding: 11px 0; border-top: 1px solid var(--line); font-size: var(--fz-sm); color: var(--text-2); line-height: 1.6; }

.points { border-top: 1px solid var(--line); padding-top: 14px; }
.points-label { margin-bottom: 10px; font-size: var(--fz-xs); font-weight: 700; color: var(--ink); }
.points .tick-list li { font-size: var(--fz-sm); line-height: 1.6; margin-bottom: 9px; text-wrap: pretty; }
.tech-list { display: flex; flex-wrap: wrap; gap: 4px 16px; margin: 18px 0 0; font-family: var(--font-num); font-size: var(--fz-xs); color: var(--text-3); }
.project-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.project-links .btn { padding: 0.85rem 1.3rem; }

/* 프로젝트 그룹 (서비스 기획 / 개발) */
.project-group { display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 14px; row-gap: 4px; margin: 0 0 40px; padding-bottom: 14px; border-bottom: 2px solid var(--ink); font-size: var(--fz-xl); font-weight: 700; color: var(--ink); }
.project-group.is-dev { margin-top: 40px; }
.group-label { flex-basis: 100%; font-family: var(--font-num); font-size: var(--fz-xs); font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-3); }
.group-note { font-size: var(--fz-sm); font-weight: 400; color: var(--text-3); }

/* 역량별 정리형 프로젝트 (이미지 없음) */
.project.is-wide { display: block; }
.project.is-wide .project-text { padding: 0; max-width: none; }
.cap-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 8px; }
.cap { padding: 22px 24px; border: 1px solid var(--line); border-radius: var(--radius); }
.cap-domain { display: flex; align-items: center; gap: 8px; margin-bottom: 7px; font-family: var(--font-num); font-size: var(--fz-xs); font-weight: 600; color: var(--text-3); }
.cap-domain span { color: var(--ink); }
.cap h4 { margin-bottom: 14px; font-size: var(--fz-lg); font-weight: 700; color: var(--ink); }
.cap .tick-list li { font-size: var(--fz-sm); line-height: 1.6; margin-bottom: 8px; }
.cap .tick-list strong { margin-right: 5px; color: var(--ink); }
.cap .tick-list li:last-child { margin-bottom: 0; }

/* Genie state flow card */
.flow-card {
  padding: 28px 28px 24px; border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--surface); transition: var(--transition);
}
.flow-caption { margin-bottom: 6px; font-family: var(--font-num); font-size: var(--fz-xxs); font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-3); }
.flow { position: relative; display: flex; flex-direction: column; gap: 14px; }
.flow-node {
  position: relative; display: flex; flex-wrap: wrap; align-items: center; gap: 4px 12px;
  padding: 13px 16px; border: 1px solid var(--line-strong); border-radius: var(--radius);
  background: var(--bg); font-size: var(--fz-sm); font-weight: 600; color: var(--ink);
  transition: var(--transition);
}
.flow-node span {
  display: inline-flex; align-items: center; justify-content: center;
  width: 26px; height: 26px; border-radius: 50%; background: var(--ink); color: #fff;
  font-family: var(--font-num); font-size: 11px; font-weight: 700;
}
.flow-node small { margin-left: auto; font-size: var(--fz-xxs); font-weight: 400; color: var(--text-3); }
.flow-node:not(.is-error):not(.is-result)::after {
  content: ''; position: absolute; left: 28px; bottom: -15px; width: 1px; height: 14px; background: var(--ink);
}
.flow-node.is-result { border-color: var(--ink); border-width: 1.5px; }
.flow-node.is-error { margin-left: 36px; border-style: dashed; color: var(--text); background: transparent; }
.flow-node.is-error span { background: var(--bg); color: var(--ink); border: 1.5px solid var(--ink); }
.flow-node.is-error::before { content: '↺'; position: absolute; left: -28px; top: 50%; translate: 0 -50%; font-size: 18px; color: var(--text-3); }
.flow-charts { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 18px; }
.flow-charts li { padding: 3px 10px; border: 1px solid var(--line-strong); border-radius: 999px; font-family: var(--font-num); font-size: 11px; color: var(--text-3); background: var(--bg); transition: var(--transition); }

/* caption note + data-structure card */
.flow-note { margin-bottom: 18px; font-size: var(--fz-xs); color: var(--text-3); }
.hist + .hist { margin-top: 20px; }
.hist-label { margin-bottom: 8px; font-size: var(--fz-xs); font-weight: 700; color: var(--ink); }
.hist-table { border: 1px solid var(--line-strong); border-radius: var(--radius); background: var(--bg); overflow: hidden; transition: var(--transition); }
.hist-table.before { opacity: 0.75; }
.hist-row { display: grid; grid-template-columns: 1fr 1.4fr 0.8fr; gap: 8px; padding: 9px 14px; font-size: var(--fz-xs); color: var(--text-2); font-variant-numeric: tabular-nums; border-top: 1px solid var(--line); transition: var(--transition); }
.hist-table.before .hist-row { grid-template-columns: 1fr 1fr; }
.hist-row:first-child { border-top: 0; }
.hist-row.head { font-weight: 700; color: var(--text-3); background: var(--surface); }
.hist-row.is-current { color: var(--ink); font-weight: 600; }
.hist-hint { margin-top: 6px; font-size: var(--fz-xxs); color: var(--text-3); }

/* =========================================================
   About & Career
   ========================================================= */
.about-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 56px; margin-bottom: 64px; }
.about-text p, .cap .tick-list li, .case dd { text-wrap: pretty; }
.about-text { font-size: var(--fz-lg); line-height: 1.85; color: var(--text-2); }
.about-text p + p { margin-top: 16px; }
.strength-list { display: flex; flex-direction: column; gap: 12px; }
.strength-list li { display: grid; grid-template-columns: 52px 1fr; align-items: start; padding: 20px 22px; background: var(--surface); border-radius: var(--radius); border-left: 3px solid var(--ink); transition: var(--transition); }
.strength-list li:hover { transform: translateX(6px); background: var(--bg); box-shadow: var(--shadow); }
.strength-list li:hover .s-no { color: var(--ink); }
.strength-list .s-no { font-family: var(--font-num); font-size: 26px; font-weight: 700; line-height: 1.1; color: var(--line-strong); transition: color 0.25s var(--ease); }
.strength-list strong { display: block; margin-bottom: 4px; font-size: var(--fz-lg); }
.strength-list div > span { display: block; font-size: var(--fz-sm); line-height: 1.6; color: var(--text-2); text-wrap: pretty; }

.tabs { display: flex; gap: 48px; }
.tab-list { display: flex; flex-direction: column; flex-shrink: 0; }
.tab-button {
  display: flex; align-items: center; width: 190px; height: 58px; padding: 0 26px;
  border-left: 3px solid var(--line); color: var(--text-3); font-size: var(--fz-md); text-align: left; white-space: nowrap;
  transition: var(--transition);
}
.tab-button:hover, .tab-button.is-active { color: var(--ink); background-color: var(--surface); border-left-color: var(--ink); }
.tab-button.is-active { font-weight: 600; }
.tab-content { flex: 1; min-width: 0; }
.tab-panel { animation: fadeIn 0.5s var(--ease); }
.tab-panel:focus-visible { outline-offset: 8px; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

.job-title { font-size: var(--fz-xl); font-weight: 700; color: var(--ink); letter-spacing: -0.01em; }
.company { font-weight: 500; color: var(--text-3); }
.job-period { margin: 4px 0 18px; font-family: var(--font-num); font-size: var(--fz-sm); color: var(--text-3); }

.career-list li {
  display: grid; grid-template-columns: 1fr auto; column-gap: 16px;
  padding: 14px 16px; margin-bottom: 10px; border-left: 2px solid var(--ink); border-radius: 0 var(--radius) var(--radius) 0;
  background: var(--surface); transition: var(--transition);
}
.career-list strong { font-size: var(--fz-md); }
.career-list .when { font-family: var(--font-num); font-size: var(--fz-xs); color: var(--text-3); align-self: center; }
.career-list p { grid-column: 1 / -1; margin-top: 2px; font-size: var(--fz-sm); color: var(--text-2); }
.career-list li.is-link { padding: 0; }
.career-list li.is-link a { display: grid; grid-template-columns: 1fr auto; column-gap: 16px; padding: 14px 16px; color: inherit; text-decoration: none; border-radius: 0 var(--radius) var(--radius) 0; transition: var(--transition); }
.career-list li.is-link:hover { transform: translateX(5px); background: var(--ink); }
.career-list li.is-link:hover strong, .career-list li.is-link:hover p, .career-list li.is-link:hover .when { color: var(--bg); }
.career-list .arrow { display: inline-block; transition: transform 0.25s var(--ease); }
.career-list li.is-link:hover .arrow { transform: translateX(4px); }
.project { scroll-margin-top: 40px; }

/* =========================================================
   Skills
   ========================================================= */
.skills-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.skill-category { padding: 26px; background-color: var(--surface); border-radius: var(--radius); transition: var(--transition); }
.skill-category h3 { margin-bottom: 16px; font-family: var(--font-num); font-size: var(--fz-md); font-weight: 700; color: var(--ink); }
.skill-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.skill-tags li {
  padding: 6px 12px; border: 1px solid var(--ink); border-radius: 4px; background: var(--bg);
  font-size: var(--fz-xs); color: var(--text); transition: var(--transition);
}

/* =========================================================
   Contact / Footer
   ========================================================= */
.contact-content { max-width: 600px; margin: 0 auto; text-align: center; }
.contact-description { margin-bottom: 20px; font-size: var(--fz-lg); color: var(--text-2); }
.contact-email {
  display: inline-block; margin: 0;
  font-family: var(--font-num); font-size: clamp(22px, 4vw, 32px); font-weight: 700; letter-spacing: -0.02em;
  color: var(--ink); text-decoration: none;
  background: linear-gradient(var(--ink), var(--ink)) left bottom / 0 2px no-repeat;
  transition: background-size 0.35s var(--ease);
}
.contact-email:hover { background-size: 100% 2px; }
.contact-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.footer { padding: 40px 50px 60px; text-align: center; font-size: var(--fz-xs); color: var(--text-3); }
.footer-note { margin-top: 6px; color: var(--text-4); }

/* =========================================================
   Lightbox
   ========================================================= */
.lightbox {
  position: fixed; inset: 0; z-index: 500;
  display: flex; align-items: center; justify-content: center; padding: 48px 24px;
  background: rgba(255, 255, 255, 0.94); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  animation: fadeIn 0.25s ease;
}
.lightbox-figure { display: flex; flex-direction: column; align-items: center; gap: 12px; max-width: min(1400px, 100%); max-height: 100%; }
.lightbox img { max-width: 100%; max-height: calc(100vh - 140px); object-fit: contain; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 30px 60px -30px rgba(0,0,0,.35); background: #fff; }
.lightbox figcaption { font-size: var(--fz-sm); color: var(--text-2); text-align: center; }
.lightbox-nav { position: absolute; top: 50%; translate: 0 -50%; width: 48px; height: 48px; border: 1px solid var(--line-strong); border-radius: 50%; background: var(--bg); font-size: 28px; line-height: 1; color: var(--ink); transition: var(--transition); }
.lightbox-nav:hover { border-color: var(--ink); background: var(--ink); color: var(--bg); }
.lightbox-nav.prev { left: 16px; } .lightbox-nav.next { right: 16px; }
.lightbox-close { position: absolute; top: 16px; right: 20px; width: 44px; height: 44px; font-size: 30px; line-height: 1; color: var(--ink); border-radius: 50%; transition: var(--transition); }
.lightbox-close:hover { background: var(--surface); transform: rotate(90deg); }

/* =========================================================
   Reveal — animation(backwards) 방식이라 hover 전환을 덮지 않음
   ========================================================= */
.js .reveal:not(.is-visible) { opacity: 0; }
.js .reveal.is-visible { animation: revealUp 0.7s var(--ease) backwards; animation-delay: calc(var(--i, 0) * 100ms); }
@keyframes revealUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: none; } }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 1024px) {
  .project, .project.is-reverse { display: block; margin-bottom: 96px; }
  .project-head { margin-bottom: 24px; }
  .project-media { position: static; max-width: 640px; margin-bottom: 28px; }
  .project-text, .project.is-reverse .project-text { padding: 0; }
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  :root { --sidebar: 0px; }
  .cap-grid { grid-template-columns: 1fr; }
  .sidebar {
    top: auto; bottom: 0; width: 100%; height: 60px; flex-direction: row; gap: 12px;
    padding: 0 16px; border-right: 0; border-top: 1px solid var(--line);
  }
  .pdf-btn { display: none; }
  .sidebar { justify-content: center; }
  .logo { height: 36px; padding: 0 12px; font-size: 11px; flex-shrink: 0; }
  .nav-links { flex-direction: row; gap: 4px; margin-top: 0; }
  .nav-link { writing-mode: horizontal-tb; font-size: 12px; padding: 8px; white-space: nowrap; }
  .nav-link::after { display: none; }
  .main-wrapper { margin-left: 0; margin-bottom: 60px; }

  .section { padding: 80px 24px; }
  .section-heading::after { width: 80px; }
  .hero-section { padding: 48px 24px 40px; min-height: auto; }
  .hero-container { grid-template-columns: 1fr; gap: 48px; }
  .hero-image-wrapper { order: -1; justify-content: flex-start; }
  .profile-frame { width: 180px; }
  .hero-name-en { display: block; margin: 8px 0 0; }

  .tabs { flex-direction: column; gap: 24px; }
  .tab-list { flex-direction: row; overflow-x: auto; border-bottom: 2px solid var(--line); }
  .tab-button { width: auto; height: 48px; padding: 0 20px; border-left: 0; border-bottom: 2px solid transparent; margin-bottom: -2px; }
  .tab-button:hover, .tab-button.is-active { border-left: 0; border-bottom-color: var(--ink); }
  .skills-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .section { padding: 64px 18px; }
  .hero-section { padding: 40px 18px 32px; }
  .section-heading { flex-direction: column; align-items: flex-start; white-space: normal; }
  .section-heading::after { display: none; }
  .section-number { margin-bottom: 4px; }
  .case { grid-template-columns: 1fr; }
  .case dt { padding: 12px 0 2px; }
  .case dd { padding: 0 0 12px; border-top: 0; }
  .flow-card { padding: 20px 16px; }
  .flow-node small { margin-left: 38px; flex-basis: 100%; }
  .career-list li, .career-list li.is-link a { grid-template-columns: 1fr; }
  .career-list .when { order: -1; }
  .hero-actions .btn, .project-links .btn { flex: 1 1 auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition-duration: 0.01ms !important; }
  .js .reveal:not(.is-visible) { opacity: 1; }
}

/* =========================================================
   Print / PDF
   ========================================================= */
@media print {
  @page { size: A4; margin: 14mm 14mm 16mm; }
  body { font-size: 10.5pt; color: #222; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .sidebar, .lightbox, .skip-link, .hero-actions, .footer-note, .contact-actions, .tab-list { display: none !important; }
  .main-wrapper { margin: 0; }
  .js .reveal { opacity: 1 !important; }
  *, *::before, *::after { animation: none !important; transition: none !important; box-shadow: none !important; }
  .thumbs { gap: 2mm; margin-top: 2mm; }
  .thumb span { padding: 1mm 2mm; font-size: 7pt; }

  .section { max-width: none; padding: 0; margin: 0 0 9mm; }
  .section-heading { margin: 0 0 6mm; font-size: 18pt; break-after: avoid; }
  .section-heading::after { width: 100px; }

  .hero-section { min-height: auto; padding: 2mm 0 7mm; max-width: none; margin-bottom: 8mm; border-bottom: 1px solid var(--line); }
  .hero-container { grid-template-columns: 1fr 44mm; gap: 10mm; }
  .hero-name { font-size: 34pt; }
  .hero-title { font-size: 17pt; margin-bottom: 3mm; }
  .hero-subtitle { font-size: 11pt; }
  .hero-description { font-size: 10.5pt; margin-top: 3mm; max-width: none; }
  .profile-frame { width: 40mm; max-width: none; }
  .profile-frame::before { translate: 2mm 2mm; }

  .project, .project.is-reverse { display: grid; grid-template-columns: 70mm 1fr; column-gap: 8mm; margin-bottom: 9mm; break-inside: avoid; }
  .project-head { grid-column: 1 / -1; grid-row: 1; margin-bottom: 4mm; max-width: none; }
  .project-media, .project.is-reverse .project-media { grid-column: 1; grid-row: 2; position: static; }
  .project-text, .project.is-reverse .project-text { grid-column: 2; grid-row: 2; padding: 0; }
  .project-title { font-size: 18pt; margin: 0 0 2mm; }
  .project-desc { padding: 3mm 4mm; margin-bottom: 3mm; font-size: 10pt; }
  .case { grid-template-columns: 17mm 1fr; }
  .case dt, .case dd { padding: 1.6mm 0; font-size: 9pt; line-height: 1.5; }
  .tech-list { margin-top: 2.5mm; }
  .points { padding-top: 2mm; }
  .points .tick-list li { font-size: 9pt; margin-bottom: 1.2mm; }
  .project-links { margin-top: 3mm; }
  .project-links .btn { padding: 2mm 3mm; font-size: 8.5pt; border: 0; background: none !important; color: #444 !important; justify-content: flex-start; }
  .project-links .btn[target]::after { content: attr(href); font-weight: 400; margin-left: 2mm; color: #777; }
  .project-links .btn[download] { display: none; }
  .project-links button[data-preview-dl] { display: none; }
  .flow-card { padding: 4mm; }
  .flow { gap: 2.5mm; }
  .flow-node { padding: 2mm 3mm; font-size: 8.5pt; }
  .flow-node::after { bottom: -2.6mm !important; height: 2.5mm !important; }
  .flow-node small { font-size: 7.5pt; }

  #projects { break-before: page; }
  .project:nth-of-type(4) { break-before: avoid; margin-top: 6mm; }
  .project.is-wide { display: block !important; }
  .project.is-wide { break-inside: auto !important; }
  .project-group { display: block; font-size: 14pt; margin-bottom: 6mm; padding-bottom: 2mm; break-after: avoid; }
  .project-group.is-dev { break-before: page; margin-top: 0; }
  .group-label { display: block; }
  .group-note { margin-left: 3mm; }
  .cap-grid { gap: 3mm; }
  .cap { padding: 3.5mm 4mm; break-inside: avoid; }
  .cap h4 { font-size: 10pt; margin-bottom: 2mm; }
  .cap .tick-list li { font-size: 8.5pt; margin-bottom: 1mm; }
  .hist-row { padding: 1.5mm 3mm; font-size: 8pt; }
  .flow-note { margin-bottom: 3mm; font-size: 8pt; }
  .about-grid { grid-template-columns: 1.1fr 1fr; gap: 8mm; margin-bottom: 6mm; }
  .about-text { font-size: 10.5pt; }
  .tabs { display: block; }
  .tab-panel, .tab-panel[hidden] { display: block !important; margin-bottom: 6mm; break-inside: avoid; }
  .career-list li { padding: 2.5mm 4mm; margin-bottom: 2mm; break-inside: avoid; }

  .skills-grid { gap: 4mm; }
  .skill-category { padding: 4mm; }
  #contact { break-inside: avoid; margin-top: 8mm; padding-top: 6mm; border-top: 1px solid var(--line); }
  .contact-email { margin: 3mm 0 0; font-size: 16pt; }
  .footer { padding: 6mm 0 0; }
}