/* ═══════════════════════════════════════════
   IDATSUKA — Portfolio
   Warm Dark Clean Design
   ═══════════════════════════════════════════ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:     #0a0a0a;
  --bg2:    #131312;
  --bg3:    #1a1918;
  --fg:     #ede8e1;
  --fg-dim: #b5afa7;
  --muted:  #6e6862;
  --dim:    #3d3935;
  --accent: #c9a87c;
  --border: #1f1e1c;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'Inter', 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.7;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; }
::selection { background: rgba(201,168,124,.2); color: var(--fg); }

/* ── Typography ── */
.label {
  font-size: .68rem; letter-spacing: .2em; text-transform: uppercase;
  color: var(--accent); display: block; margin-bottom: 1.5rem;
}

/* ── Layout ── */
.container { max-width: 1100px; margin: 0 auto; padding: 0 3rem; }
section { padding: 7rem 0; }

/* ── Nav ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.4rem 3rem;
  background: rgba(10,10,10,.88);
  backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
}
.logo {
  font-size: .78rem; font-weight: 600; letter-spacing: .14em;
  text-transform: uppercase; color: var(--fg);
}
.nav-links { display: flex; gap: 2.2rem; list-style: none; }
.nav-links a {
  font-size: .7rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--muted); transition: color .25s;
}
.nav-links a:hover, .nav-links a.active { color: var(--fg); }

/* ── Footer ── */
footer {
  padding: 2rem 3rem; border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center;
}
footer p { font-size: .68rem; color: var(--dim); }
.footer-links { display: flex; gap: 2rem; list-style: none; }
.footer-links a {
  font-size: .68rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--dim); transition: color .25s;
}
.footer-links a:hover { color: var(--fg); }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .8rem 2rem; border: 1px solid var(--dim);
  background: transparent; color: var(--fg);
  font-size: .72rem; font-family: inherit; letter-spacing: .14em;
  text-transform: uppercase; cursor: pointer;
  transition: border-color .3s, background .3s, color .3s;
}
.btn:hover { border-color: var(--accent); background: var(--accent); color: var(--bg); }

.btn-filled {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .85rem 2.2rem; border: none;
  background: var(--accent); color: var(--bg);
  font-size: .72rem; font-family: inherit; font-weight: 600;
  letter-spacing: .14em; text-transform: uppercase; cursor: pointer;
  transition: background .25s;
}
.btn-filled:hover { background: #d9bb9a; }

/* ── Scroll Reveal ── */
.rv {
  opacity: 0; transform: translateY(24px);
  transition: opacity .7s cubic-bezier(.25,.46,.45,.94),
              transform .7s cubic-bezier(.25,.46,.45,.94);
}
.rv.on { opacity: 1; transform: translateY(0); }

/* ── Page Header (sub-pages) ── */
.page-header {
  padding: 9rem 3rem 4.5rem;
  border-bottom: 1px solid var(--border);
}
.page-header-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 4rem; align-items: end;
}
.page-header .label { margin-bottom: 1rem; }
.page-header h1 {
  font-size: clamp(3rem, 9vw, 8rem); font-weight: 600;
  letter-spacing: -.04em; line-height: .9;
}
.page-header-desc {
  font-size: .92rem; line-height: 2;
  color: var(--fg-dim); align-self: end;
}

/* ═══════════════════════════════════════════
   HOME
   ═══════════════════════════════════════════ */

#hero {
  height: 100vh; display: flex; align-items: center;
  justify-content: center; position: relative;
}
.hero-inner { text-align: center; }
.hero-label {
  font-size: .7rem; letter-spacing: .3em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 2rem;
  opacity: 0; animation: fadeIn .8s ease forwards .2s;
}
.hero-name {
  font-size: clamp(4rem, 12vw, 11rem); font-weight: 600;
  letter-spacing: -.045em; line-height: .88; margin-bottom: 1.8rem;
  opacity: 0; animation: fadeIn .8s ease forwards .5s;
}
.hero-line {
  width: 40px; height: 1px; background: var(--accent);
  margin: 0 auto 1.6rem;
  opacity: 0; animation: fadeIn .8s ease forwards .8s;
}
.hero-sub {
  font-size: .82rem; color: var(--muted);
  letter-spacing: .18em; text-transform: uppercase;
  opacity: 0; animation: fadeIn .8s ease forwards 1s;
}
.hero-cta {
  margin-top: 3.5rem;
  opacity: 0; animation: fadeIn .8s ease forwards 1.3s;
}
.hero-scroll {
  position: absolute; bottom: 2.5rem; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: .6rem;
  opacity: 0; animation: fadeIn .8s ease forwards 1.8s;
}
.hero-scroll span {
  font-size: .6rem; letter-spacing: .25em;
  text-transform: uppercase; color: var(--dim);
}
.scroll-line {
  width: 1px; height: 40px;
  background: linear-gradient(to bottom, var(--dim), transparent);
  animation: scrollPulse 2.5s ease-in-out infinite;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes scrollPulse {
  0%, 100% { opacity: .3; }
  50%      { opacity: 1; }
}

/* Home About */
.home-about {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.about-grid {
  display: grid; grid-template-columns: 1fr 1.4fr;
  gap: 5rem; align-items: start;
}
.about-photo {
  aspect-ratio: 3/4; background: var(--bg3);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  flex-direction: column; gap: .5rem;
}
.about-photo svg { opacity: .15; }
.about-photo-hint {
  font-size: .6rem; letter-spacing: .25em;
  text-transform: uppercase; color: var(--dim);
}
.about-bio p {
  font-size: .95rem; line-height: 1.95;
  color: var(--fg-dim); margin-bottom: 1.2rem;
}
.about-bio p strong { color: var(--fg); font-weight: 500; }
.skills-row {
  display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 2rem;
}
.skill-tag {
  padding: .4rem .9rem; border: 1px solid var(--border);
  font-size: .7rem; letter-spacing: .06em; color: var(--muted);
  transition: border-color .25s, color .25s;
}
.skill-tag:hover { border-color: var(--accent); color: var(--accent); }

/* Home Works */
.works-grid-home {
  display: grid; grid-template-columns: repeat(2,1fr);
  gap: 1px; background: var(--border);
}
.work-card-home {
  background: var(--bg); padding: 2.5rem;
  display: flex; flex-direction: column;
  transition: background .25s;
}
.work-card-home:hover { background: var(--bg2); }
.work-card-num {
  font-size: .65rem; letter-spacing: .12em;
  color: var(--dim); margin-bottom: 2rem;
}
.work-card-thumb {
  aspect-ratio: 16/9; margin-bottom: 1.8rem; overflow: hidden;
}
.work-card-home:nth-child(1) .work-card-thumb { background: linear-gradient(135deg,#16130f,#2a2520,#1a1715); }
.work-card-home:nth-child(2) .work-card-thumb { background: linear-gradient(135deg,#110f16,#221e2a,#15131a); }
.work-card-home:nth-child(3) .work-card-thumb { background: linear-gradient(135deg,#0f1210,#1a2620,#121815); }
.work-card-home:nth-child(4) .work-card-thumb { background: linear-gradient(135deg,#14110f,#2a2118,#1a1510); }
.work-card-cat {
  font-size: .65rem; letter-spacing: .18em; text-transform: uppercase;
  color: var(--accent); margin-bottom: .4rem;
}
.work-card-title {
  font-size: 1.3rem; font-weight: 600;
  letter-spacing: -.01em; margin-bottom: .6rem;
}
.work-card-desc {
  font-size: .85rem; line-height: 1.8; color: var(--muted);
}

/* Home Career */
.home-career {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.timeline-home .tl-item {
  display: grid; grid-template-columns: 10rem 1fr;
  gap: 3rem; padding: 2.5rem 0;
  border-bottom: 1px solid var(--border);
}
.timeline-home .tl-item:last-child { border-bottom: none; }
.tl-year {
  font-size: .72rem; letter-spacing: .1em;
  color: var(--muted); padding-top: .15rem;
}
.tl-role { font-size: 1.2rem; font-weight: 600; margin-bottom: .25rem; }
.tl-company { font-size: .82rem; color: var(--accent); margin-bottom: .7rem; }
.tl-desc { font-size: .85rem; line-height: 1.9; color: var(--muted); }

/* Home Contact */
.home-contact { text-align: center; }
.contact-email {
  display: inline-block;
  font-size: clamp(1.2rem,3vw,2.2rem); font-weight: 500;
  letter-spacing: -.01em; color: var(--fg);
  position: relative; margin-top: 1rem; transition: color .3s;
}
.contact-email:hover { color: var(--accent); }
.contact-email::after {
  content: ''; position: absolute; bottom: -2px; left: 0;
  width: 100%; height: 1px; background: var(--accent);
  transform: scaleX(0); transform-origin: right;
  transition: transform .4s cubic-bezier(.25,.46,.45,.94);
}
.contact-email:hover::after { transform: scaleX(1); transform-origin: left; }

.socials {
  display: flex; justify-content: center; flex-wrap: wrap;
  gap: 2rem; list-style: none; margin-top: 2.5rem;
}
.socials a {
  font-size: .7rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--dim); transition: color .25s;
}
.socials a:hover { color: var(--fg); }

.contact-form-home {
  max-width: 480px; margin: 3.5rem auto 0; text-align: left;
}
.fg { margin-bottom: 1.2rem; }
.fg label {
  display: block; font-size: .65rem; letter-spacing: .18em;
  text-transform: uppercase; color: var(--muted); margin-bottom: .4rem;
}
.fg input, .fg textarea {
  width: 100%; background: transparent;
  border: none; border-bottom: 1px solid var(--border);
  padding: .7rem 0; color: var(--fg); font-family: inherit;
  font-size: .9rem; outline: none; transition: border-color .25s;
}
.fg textarea { height: 100px; resize: none; line-height: 1.8; }
.fg input:focus, .fg textarea:focus { border-color: var(--accent); }
.fg input::placeholder, .fg textarea::placeholder { color: var(--dim); }
.form-msg {
  display: none; margin-top: 1rem;
  font-size: .82rem; color: var(--accent); letter-spacing: .04em;
}

/* ═══════════════════════════════════════════
   ABOUT PAGE
   ═══════════════════════════════════════════ */
.bio-grid {
  display: grid; grid-template-columns: 1fr 1.5fr; gap: 5rem;
}
.bio-photo {
  aspect-ratio: 3/4; background: var(--bg3);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  flex-direction: column; gap: .5rem;
}
.bio-photo svg { opacity: .15; }
.bio-photo-hint {
  font-size: .6rem; letter-spacing: .25em;
  text-transform: uppercase; color: var(--dim);
}
.bio-text p {
  font-size: .95rem; line-height: 2; color: var(--fg-dim); margin-bottom: 1.2rem;
}
.bio-text p strong { color: var(--fg); font-weight: 500; }
.bio-text p:last-child { margin-bottom: 0; }

.skills-grid {
  display: grid; grid-template-columns: repeat(3,1fr);
  gap: 1px; background: var(--border);
}
.skill-item { background: var(--bg); padding: 1.6rem; }
.skill-item-name { font-size: .9rem; font-weight: 600; margin-bottom: .35rem; }
.skill-item-tools { font-size: .78rem; color: var(--muted); line-height: 1.7; }

.about-timeline .tl-item {
  display: grid; grid-template-columns: 10rem 1fr;
  gap: 3rem; padding: 2.5rem 0;
  border-bottom: 1px solid var(--border);
}
.about-timeline .tl-item:last-child { border-bottom: none; }

.about-cta {
  padding: 6rem 3rem; text-align: center;
  border-top: 1px solid var(--border);
}
.about-cta-title {
  font-size: clamp(2rem,5vw,4rem); font-weight: 600;
  letter-spacing: -.03em; margin-bottom: 2rem;
}
.about-cta-title em { color: var(--accent); font-style: normal; }

/* ═══════════════════════════════════════════
   WORKS PAGE
   ═══════════════════════════════════════════ */
.filter-bar {
  padding: 1.3rem 3rem; border-bottom: 1px solid var(--border);
  display: flex; gap: 1.5rem; flex-wrap: wrap;
}
.filter-btn {
  background: none; border: none; cursor: pointer;
  font-family: inherit; font-size: .7rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--muted);
  padding: .25rem 0; border-bottom: 1px solid transparent;
  transition: color .25s, border-color .25s;
}
.filter-btn:hover, .filter-btn.active { color: var(--fg); border-color: var(--accent); }

.works-container { padding: 0 3rem 5rem; }
.works-grid {
  display: grid; grid-template-columns: repeat(2,1fr);
  gap: 1px; background: var(--border); margin-top: 1px;
}
.work-card {
  background: var(--bg); padding: 2.5rem;
  display: flex; flex-direction: column;
  text-decoration: none; color: var(--fg); transition: background .25s;
}
.work-card:hover { background: var(--bg2); }
.work-card .work-card-thumb {
  aspect-ratio: 16/9; margin-bottom: 1.8rem; overflow: hidden;
}
.work-card:nth-child(1) .work-card-thumb { background: linear-gradient(135deg,#16130f,#2a2520,#1a1715); }
.work-card:nth-child(2) .work-card-thumb { background: linear-gradient(135deg,#110f16,#221e2a,#15131a); }
.work-card:nth-child(3) .work-card-thumb { background: linear-gradient(135deg,#0f1210,#1a2620,#121815); }
.work-card:nth-child(4) .work-card-thumb { background: linear-gradient(135deg,#14110f,#2a2118,#1a1510); }
.work-card:nth-child(5) .work-card-thumb { background: linear-gradient(135deg,#130f14,#261a28,#1a1520); }
.work-card:nth-child(6) .work-card-thumb { background: linear-gradient(135deg,#0f1114,#1a2028,#121518); }
.work-card-thumb-inner {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
}
.work-card-thumb-label {
  font-size: .6rem; letter-spacing: .25em;
  text-transform: uppercase; color: var(--dim);
}
.work-card-meta {
  display: flex; justify-content: space-between; align-items: center;
  margin-top: 1.8rem; padding-top: 1rem;
  border-top: 1px solid var(--border);
}
.work-card-year { font-size: .68rem; color: var(--dim); letter-spacing: .08em; }
.work-card-arrow { color: var(--dim); transition: color .25s, transform .25s; }
.work-card:hover .work-card-arrow { color: var(--accent); transform: translateX(3px); }

/* ═══════════════════════════════════════════
   BLOG PAGE
   ═══════════════════════════════════════════ */
.tag-bar {
  padding: 1.3rem 3rem; border-bottom: 1px solid var(--border);
  display: flex; gap: .8rem; flex-wrap: wrap; align-items: center;
}
.tag-label {
  font-size: .62rem; letter-spacing: .18em;
  text-transform: uppercase; color: var(--dim); margin-right: .3rem;
}
.tag-btn {
  background: none; border: 1px solid var(--border); cursor: pointer;
  font-family: inherit; font-size: .65rem; letter-spacing: .1em;
  text-transform: uppercase; color: var(--muted); padding: .25rem .7rem;
  transition: color .25s, border-color .25s, background .25s;
}
.tag-btn:hover, .tag-btn.active {
  color: var(--bg); background: var(--accent); border-color: var(--accent);
}

.featured-post {
  display: grid; grid-template-columns: 1fr 1fr;
  border-bottom: 1px solid var(--border);
  text-decoration: none; color: var(--fg); transition: background .25s;
}
.featured-post:hover { background: var(--bg2); }
.featured-thumb {
  aspect-ratio: 16/10;
  background: linear-gradient(135deg,#16130f,#2a2520,#1a1715);
  display: flex; align-items: center; justify-content: center;
}
.featured-thumb-label {
  font-size: .6rem; letter-spacing: .25em;
  text-transform: uppercase; color: var(--dim);
}
.featured-content {
  padding: 3.5rem 3rem;
  display: flex; flex-direction: column; justify-content: center;
}
.featured-badge {
  font-size: .6rem; letter-spacing: .2em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 1.2rem;
}
.featured-tag {
  display: inline-block; font-size: .6rem; letter-spacing: .18em;
  text-transform: uppercase; color: var(--accent);
  border: 1px solid var(--dim); padding: .2rem .6rem;
  margin-bottom: 1rem; width: fit-content;
}
.featured-title {
  font-size: clamp(1.2rem,2.5vw,1.8rem); font-weight: 600;
  letter-spacing: -.02em; line-height: 1.3; margin-bottom: .8rem;
}
.featured-excerpt {
  font-size: .85rem; line-height: 1.9; color: var(--muted); margin-bottom: 1.5rem;
}
.featured-meta {
  display: flex; gap: 2rem; font-size: .65rem;
  letter-spacing: .1em; text-transform: uppercase; color: var(--dim);
}

.posts-container { padding: 0 3rem 5rem; }
.posts-header {
  padding: 2.5rem 0 1.5rem; border-bottom: 1px solid var(--border);
  font-size: .62rem; letter-spacing: .2em; text-transform: uppercase;
  color: var(--dim); display: flex; justify-content: space-between;
}
.post-item {
  display: grid; grid-template-columns: 5rem 1fr auto;
  gap: 2rem; align-items: start; padding: 2rem 0;
  border-bottom: 1px solid var(--border);
  text-decoration: none; color: var(--fg);
}
.post-item:last-child { border-bottom: none; }
.post-item:hover .post-title { color: var(--accent); }
.post-num {
  font-size: .65rem; letter-spacing: .1em;
  color: var(--dim); padding-top: .15rem;
}
.post-tag {
  font-size: .6rem; letter-spacing: .18em; text-transform: uppercase;
  color: var(--accent); margin-bottom: .4rem; display: block;
}
.post-title {
  font-size: 1.05rem; font-weight: 600;
  margin-bottom: .4rem; transition: color .25s;
}
.post-excerpt { font-size: .82rem; color: var(--muted); line-height: 1.8; }
.post-meta { text-align: right; flex-shrink: 0; }
.post-date {
  font-size: .65rem; color: var(--dim); letter-spacing: .08em;
  display: block; margin-bottom: .3rem;
}
.post-read {
  font-size: .6rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--dim);
}

.notes-section {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.notes-inner { padding: 4.5rem 3rem; max-width: 1100px; margin: 0 auto; }
.notes-grid {
  display: grid; grid-template-columns: repeat(3,1fr);
  gap: 1px; background: var(--border);
}
.note-card {
  background: var(--bg2); padding: 1.8rem;
  display: flex; flex-direction: column;
}
.note-card-label {
  font-size: .6rem; letter-spacing: .18em; text-transform: uppercase;
  color: var(--accent); margin-bottom: .8rem;
}
.note-card-text { font-size: .88rem; line-height: 1.85; color: var(--fg-dim); flex: 1; }
.note-card-date { font-size: .62rem; color: var(--dim); margin-top: 1.2rem; }

/* ═══════════════════════════════════════════
   CONTACT PAGE
   ═══════════════════════════════════════════ */
.contact-wrap {
  display: grid; grid-template-columns: 1fr 1.8fr;
  gap: 5rem; padding: 5rem 3rem;
  max-width: 1100px; margin: 0 auto;
  border-bottom: 1px solid var(--border);
}
.contact-info-item { margin-bottom: 2.2rem; }
.contact-info-label {
  font-size: .62rem; letter-spacing: .2em; text-transform: uppercase;
  color: var(--dim); margin-bottom: .4rem;
}
.contact-info-value { font-size: .92rem; color: var(--fg); line-height: 1.6; }
.contact-info-value a { transition: color .25s; }
.contact-info-value a:hover { color: var(--accent); }

.availability {
  margin-top: 2.5rem; padding: 1rem 1.2rem;
  border: 1px solid var(--border);
  display: flex; align-items: center; gap: .6rem;
}
.availability-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: #7ec97a; flex-shrink: 0;
  animation: pulse 2.5s ease infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .3; } }
.availability-text {
  font-size: .72rem; letter-spacing: .08em;
  text-transform: uppercase; color: var(--muted);
}

.form-row { margin-bottom: 1.8rem; }
.form-row-split {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 1.5rem; margin-bottom: 1.8rem;
}
.form-label {
  display: block; font-size: .62rem; letter-spacing: .2em;
  text-transform: uppercase; color: var(--dim); margin-bottom: .6rem;
}
.form-input, .form-select, .form-textarea {
  width: 100%; background: transparent;
  border: none; border-bottom: 1px solid var(--border);
  color: var(--fg); font-family: inherit; font-size: .9rem;
  padding: .65rem 0; outline: none; transition: border-color .25s;
  -webkit-appearance: none;
}
.form-input:focus, .form-select:focus, .form-textarea:focus { border-color: var(--accent); }
.form-input::placeholder, .form-textarea::placeholder { color: var(--dim); }
.form-select { cursor: pointer; }
.form-select option { background: var(--bg2); }
.form-textarea { resize: none; height: 110px; line-height: 1.8; }

.form-success { display: none; text-align: center; padding: 4rem 2rem; }
.form-success-icon { font-size: 2rem; margin-bottom: .8rem; color: var(--accent); }
.form-success h3 { font-size: 1.2rem; margin-bottom: .6rem; }
.form-success p { color: var(--muted); font-size: .88rem; }

.sns-section { padding: 4.5rem 3rem; max-width: 1100px; margin: 0 auto; }
.sns-grid {
  display: grid; grid-template-columns: repeat(4,1fr);
  gap: 1px; background: var(--border); margin-top: 1.5rem;
}
.sns-item {
  background: var(--bg); padding: 1.8rem 1.4rem;
  text-decoration: none; color: var(--fg);
  display: flex; flex-direction: column; gap: .4rem;
  transition: background .25s;
}
.sns-item:hover { background: var(--bg2); }
.sns-item-platform {
  font-size: .6rem; letter-spacing: .2em;
  text-transform: uppercase; color: var(--dim);
}
.sns-item-handle { font-size: .95rem; font-weight: 600; }
.sns-item-arrow {
  color: var(--dim); font-size: .85rem; margin-top: auto;
  padding-top: .8rem; transition: color .25s, transform .25s;
}
.sns-item:hover .sns-item-arrow { color: var(--accent); transform: translateX(3px); }

/* ═══════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════ */
@media (max-width: 900px) {
  nav { padding: 1.2rem 1.5rem; }
  .nav-links { display: none; }
  .container { padding: 0 1.5rem; }
  section { padding: 5rem 0; }
  .page-header { padding: 7rem 1.5rem 3rem; }
  .page-header-grid { grid-template-columns: 1fr; gap: 1.5rem; }

  .about-grid { grid-template-columns: 1fr; gap: 3rem; }
  .about-photo { aspect-ratio: 16/9; }
  .works-grid-home { grid-template-columns: 1fr; }
  .work-card-home { padding: 2rem 1.5rem; }
  .timeline-home .tl-item { grid-template-columns: 1fr; gap: .4rem; }
  .socials { gap: 1.2rem; }
  .contact-form-home { margin-top: 2.5rem; }

  .bio-grid { grid-template-columns: 1fr; gap: 3rem; }
  .bio-photo { aspect-ratio: 16/9; }
  .skills-grid { grid-template-columns: 1fr 1fr; }
  .about-timeline .tl-item { grid-template-columns: 1fr; gap: .4rem; }
  .about-cta { padding: 4rem 1.5rem; }

  .filter-bar { padding: 1rem 1.5rem; }
  .works-container { padding: 0 1.5rem 4rem; }
  .works-grid { grid-template-columns: 1fr; }
  .work-card { padding: 2rem 1.5rem; }

  .tag-bar { padding: 1rem 1.5rem; }
  .featured-post { grid-template-columns: 1fr; }
  .featured-content { padding: 2rem 1.5rem; }
  .posts-container { padding: 0 1.5rem 4rem; }
  .post-item { grid-template-columns: 1fr; gap: .4rem; }
  .post-num { display: none; }
  .post-meta { text-align: left; }
  .notes-inner { padding: 3rem 1.5rem; }
  .notes-grid { grid-template-columns: 1fr; }

  .contact-wrap { grid-template-columns: 1fr; gap: 3rem; padding: 3rem 1.5rem; }
  .form-row-split { grid-template-columns: 1fr; }
  .sns-section { padding: 3rem 1.5rem; }
  .sns-grid { grid-template-columns: 1fr 1fr; }

  footer { flex-direction: column; gap: .8rem; text-align: center; padding: 1.5rem; }
  .footer-links { justify-content: center; }
  .skills-row { justify-content: center; }
}

@media (max-width: 480px) {
  .hero-name { font-size: clamp(2.8rem,15vw,4rem); }
  .skills-grid { grid-template-columns: 1fr; }
  .sns-grid { grid-template-columns: 1fr; }
}