/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-bg:           #ffffff;
  --color-bg-alt:       #F8FAFC;
  --color-bg-contact:   #0F172A;
  --color-text-primary: #0F172A;
  --color-text-secondary: #475569;
  --color-text-muted:   #94A3B8;
  --color-accent:       #2563EB;
  --color-accent-light: #EFF6FF;
  --color-accent-mid:   #BFDBFE;
  --color-border:       #E2E8F0;
  --color-border-strong: #CBD5E1;
  --color-code-bg:      #1E293B;
  --color-code-bg-bar:  #0F172A;

  --font-sans: -apple-system, BlinkMacSystemFont, 'Hiragino Sans', 'Hiragino Kaku Gothic ProN',
               'Yu Gothic', YuGothic, 'Noto Sans JP', sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --nav-height: 64px;

  --transition-base: 200ms ease;
  --transition-slow: 400ms ease;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

/* ============================================================
   SKIP LINK
   ============================================================ */
.skip-link {
  position: fixed;
  top: -100px;
  left: 16px;
  z-index: 9999;
  padding: 8px 16px;
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  transition: top var(--transition-base);
}
.skip-link:focus {
  top: 16px;
}

/* ============================================================
   CONTAINER
   ============================================================ */
.container {
  width: 100%;
  max-width: 1080px;
  margin-inline: auto;
  padding-inline: 24px;
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-base), background var(--transition-base);
}
.site-header.scrolled {
  border-bottom-color: var(--color-border);
}

.nav-inner {
  max-width: 1080px;
  margin-inline: auto;
  padding-inline: 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  gap: 2px;
}
.nav-logo-bracket {
  color: var(--color-accent);
}
.nav-logo-name {
  padding-inline: 2px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  padding: 6px 12px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  transition: color var(--transition-base), background var(--transition-base);
}
.nav-link:hover {
  color: var(--color-text-primary);
  background: var(--color-bg-alt);
}
.nav-link.active {
  color: var(--color-accent);
}
.nav-link--cta {
  background: var(--color-accent);
  color: #fff !important;
  margin-left: 8px;
}
.nav-link--cta:hover {
  background: #1d4ed8 !important;
  color: #fff !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: flex-end;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-sm);
}
.nav-toggle-line {
  display: block;
  height: 1.5px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base), width var(--transition-base);
}
.nav-toggle-line:nth-child(1) { width: 22px; }
.nav-toggle-line:nth-child(2) { width: 18px; }
.nav-toggle-line:nth-child(3) { width: 14px; }

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(1) {
  width: 20px;
  transform: translateY(6.5px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(3) {
  width: 20px;
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ============================================================
   SECTIONS
   ============================================================ */
.section {
  padding-block: 96px;
}
.section--alt {
  background: var(--color-bg-alt);
}
.section--hero {
  padding-top: calc(var(--nav-height) + 64px);
  padding-bottom: 80px;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
}
.section--contact {
  background: var(--color-bg-contact);
  color: #fff;
}

/* ============================================================
   SECTION HEADER
   ============================================================ */
.section-header {
  margin-bottom: 56px;
}
.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 8px;
}
.section-label--light {
  color: var(--color-accent-mid);
}
.section-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
}
.section--contact .section-title {
  color: #fff;
}
.section-desc {
  margin-top: 12px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* ============================================================
   FADE-IN ANIMATION
   ============================================================ */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   HERO
   ============================================================ */
.hero-container {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 64px;
}
.hero-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.hero-label::before {
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background: var(--color-accent);
}
.hero-name {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.1;
  color: var(--color-text-primary);
  margin-bottom: 20px;
}
.hero-tagline {
  font-size: clamp(0.95rem, 1.5vw, 1.05rem);
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
  max-width: 480px;
}

/* code block */
.hero-code {
  background: var(--color-code-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 36px;
  max-width: 480px;
  border: 1px solid rgba(255,255,255,0.06);
}
.hero-code-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  background: var(--color-code-bg-bar);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.dot--red    { background: #FF5F57; }
.dot--yellow { background: #FEBC2E; }
.dot--green  { background: #28C840; }
.hero-code-filename {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: #64748B;
  margin-left: 4px;
}
.hero-code-body {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.8;
  padding: 16px 20px;
  white-space: pre;
  overflow-x: auto;
  color: #CBD5E1;
}
.token-keyword { color: #93C5FD; }
.token-var     { color: #C4B5FD; }
.token-op      { color: #94A3B8; }
.token-key     { color: #7DD3FC; }
.token-str     { color: #86EFAC; }
.token-type    { color: #FCA5A5; }
.token-cursor {
  display: inline-block;
  width: 2px;
  height: 1em;
  background: var(--color-accent);
  margin-left: 1px;
  vertical-align: text-bottom;
  animation: blink 1.2s step-end infinite;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

/* actions */
.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* badges */
.hero-badge-wrap {
  display: flex;
  flex-direction: column;
  gap: 16px;
  flex-shrink: 0;
}
.hero-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 20px 24px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-align: center;
  min-width: 100px;
}
.hero-badge-num {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-accent);
  line-height: 1;
}
.hero-badge-label {
  font-size: 0.72rem;
  color: var(--color-text-muted);
  line-height: 1.4;
}

/* scroll hint */
.hero-scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.scroll-line {
  display: block;
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--color-accent), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
.scroll-text {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; transform: scaleY(1); transform-origin: top; }
  50%       { opacity: 1;   transform: scaleY(1.1); }
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  transition: background var(--transition-base), color var(--transition-base),
              border-color var(--transition-base), transform var(--transition-base);
  cursor: pointer;
  border: 1.5px solid transparent;
  white-space: nowrap;
}
.btn:active { transform: scale(0.98); }
.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.btn--primary {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}
.btn--primary:hover {
  background: #1d4ed8;
  border-color: #1d4ed8;
}
.btn--secondary {
  background: transparent;
  color: var(--color-text-primary);
  border-color: var(--color-border-strong);
}
.btn--secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}
.btn--contact-primary {
  background: #fff;
  color: var(--color-bg-contact);
  border-color: #fff;
  font-weight: 700;
}
.btn--contact-primary:hover {
  background: var(--color-accent-light);
  border-color: var(--color-accent-light);
}
.btn--contact-secondary {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.3);
}
.btn--contact-secondary:hover {
  border-color: #fff;
  background: rgba(255,255,255,0.08);
}

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 64px;
  align-items: start;
}
.about-avatar-wrap {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.about-avatar {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  overflow: hidden;
  background: var(--color-accent-light);
  border: 3px solid var(--color-border);
}
.about-avatar svg {
  width: 100%;
  height: 100%;
}

.about-meta-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.about-meta-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px;
  font-size: 0.85rem;
}
.about-meta-item dt {
  color: var(--color-text-muted);
  white-space: nowrap;
}
.about-meta-item dd {
  color: var(--color-text-secondary);
  font-weight: 500;
}

.about-text {
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}
.about-text:last-of-type {
  margin-bottom: 24px;
}

.about-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.about-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: border-color var(--transition-base), color var(--transition-base),
              background var(--transition-base);
}
.about-link:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: var(--color-accent-light);
}

/* ============================================================
   STRENGTHS
   ============================================================ */
.strengths-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.strength-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color var(--transition-base);
}
.strength-card:hover {
  border-color: var(--color-accent-mid);
}
.strength-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-light);
  color: var(--color-accent);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  flex-shrink: 0;
}
.strength-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--color-text-primary);
}
.strength-text {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
}

/* ============================================================
   WORKS
   ============================================================ */
.works-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.work-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition-base);
}
.work-card:hover {
  border-color: var(--color-accent-mid);
}
.work-header {
  padding: 28px 32px 20px;
  border-bottom: 1px solid var(--color-border);
}
.work-meta-top {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.work-type {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-accent);
  background: var(--color-accent-light);
  padding: 3px 10px;
  border-radius: 20px;
}
.work-year {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
}
.work-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--color-text-primary);
}
.work-role {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}
.work-body {
  padding: 24px 32px 28px;
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto auto;
  gap: 20px 32px;
}
.work-desc {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
  grid-column: 1;
  grid-row: 1;
}
.work-outcomes {
  display: flex;
  flex-direction: column;
  gap: 16px;
  grid-column: 2;
  grid-row: 1 / 3;
  align-self: start;
  min-width: 140px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
}
.work-outcome {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.work-outcome-num {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-accent);
  line-height: 1.2;
}
.work-outcome-num small {
  font-size: 0.65em;
  font-weight: 600;
}
.work-outcome-label {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  line-height: 1.3;
}
.work-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  grid-column: 1;
  grid-row: 2;
  align-self: end;
}

/* ============================================================
   TAGS
   ============================================================ */
.tag {
  display: inline-block;
  padding: 4px 10px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  font-family: var(--font-mono);
}
.tag--outline {
  background: transparent;
  border-color: var(--color-border-strong);
  color: var(--color-text-secondary);
  font-family: var(--font-sans);
}

/* ============================================================
   PHILOSOPHY
   ============================================================ */
.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.philosophy-item {
  display: flex;
  gap: 20px;
  padding: 28px 28px;
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-base);
}
.philosophy-item:nth-child(2n) {
  border-right: none;
}
.philosophy-item:nth-last-child(-n+2) {
  border-bottom: none;
}
.philosophy-item:hover {
  background: var(--color-bg);
}
.philosophy-index {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.05em;
  flex-shrink: 0;
  padding-top: 3px;
}
.philosophy-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-text-primary);
}
.philosophy-text {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
}

/* ============================================================
   SKILLS
   ============================================================ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px 64px;
}
.skill-group-title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}
.skill-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.skill-item {
  display: grid;
  grid-template-columns: 140px 1fr auto;
  align-items: center;
  gap: 12px;
}
.skill-name {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-primary);
}
.skill-bar-wrap {
  height: 4px;
  background: var(--color-border);
  border-radius: 2px;
  overflow: hidden;
}
.skill-bar {
  height: 100%;
  width: 0;
  background: var(--color-accent);
  border-radius: 2px;
  transition: width 1s ease;
}
.skill-bar.animated {
  width: var(--bar-width);
}
.skill-level {
  font-size: 0.72rem;
  color: var(--color-text-muted);
  white-space: nowrap;
  font-family: var(--font-mono);
}
.skill-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* ============================================================
   CAREER
   ============================================================ */
.career-timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.career-item {
  display: grid;
  grid-template-columns: 80px 32px 1fr;
  gap: 0 24px;
}
.career-period {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  padding-top: 4px;
  gap: 2px;
}
.career-year-start {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-text-primary);
}
.career-year-end {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-text-muted);
}
.career-connector {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}
.career-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-border-strong);
  border: 2px solid var(--color-bg-alt);
  flex-shrink: 0;
  margin-top: 4px;
  position: relative;
  z-index: 1;
}
.career-dot--current {
  background: var(--color-accent);
  border-color: var(--color-accent-light);
  box-shadow: 0 0 0 3px var(--color-accent-light);
}
.career-line {
  flex: 1;
  width: 1px;
  background: var(--color-border);
  margin-block: 6px;
}
.career-content {
  padding-bottom: 48px;
}
.career-item:last-child .career-content {
  padding-bottom: 0;
}
.career-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 20px;
  margin-bottom: 8px;
}
.career-badge--current {
  background: var(--color-accent-light);
  color: var(--color-accent);
}
.career-company {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 4px;
}
.career-role {
  font-size: 0.85rem;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 12px;
}
.career-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}
.career-list li {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  padding-left: 14px;
  position: relative;
  line-height: 1.6;
}
.career-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 5px;
  height: 1px;
  background: var(--color-accent);
}
.career-stack {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact-inner {
  text-align: center;
  max-width: 560px;
  margin-inline: auto;
  padding-block: 16px;
}
.contact-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: #fff;
  margin-bottom: 20px;
}
.contact-desc {
  font-size: 0.95rem;
  color: #94A3B8;
  line-height: 1.85;
  margin-bottom: 36px;
}
.contact-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.contact-note {
  font-size: 0.8rem;
  color: #475569;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: #080F1D;
  padding-block: 32px;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.footer-name {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  color: #fff;
}
.footer-copy {
  font-size: 0.8rem;
  color: #475569;
}

/* ============================================================
   FOCUS VISIBLE
   ============================================================ */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 2px;
}

/* ============================================================
   RESPONSIVE — TABLET
   ============================================================ */
@media (max-width: 900px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-badge-wrap {
    flex-direction: row;
    justify-content: flex-start;
  }
  .hero-badge {
    min-width: 90px;
    padding: 16px 18px;
  }
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .about-avatar-wrap {
    flex-direction: row;
    align-items: flex-start;
    gap: 24px;
  }
  .about-avatar {
    width: 120px;
    height: 120px;
    flex-shrink: 0;
  }
  .strengths-grid {
    grid-template-columns: 1fr;
  }
  .skills-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .work-body {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
  }
  .work-outcomes {
    grid-column: 1;
    grid-row: 2;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 12px 24px;
  }
  .work-tags {
    grid-row: 3;
  }
  .philosophy-grid {
    grid-template-columns: 1fr;
  }
  .philosophy-item:nth-child(2n) {
    border-right: 1px solid var(--color-border);
  }
  .philosophy-item:nth-last-child(-n+2) {
    border-bottom: 1px solid var(--color-border);
  }
  .philosophy-item:last-child {
    border-bottom: none;
  }
}

/* ============================================================
   RESPONSIVE — MOBILE
   ============================================================ */
@media (max-width: 640px) {
  :root { --nav-height: 56px; }

  .section { padding-block: 64px; }
  .section--hero {
    padding-top: calc(var(--nav-height) + 48px);
    padding-bottom: 64px;
  }
  .section-header { margin-bottom: 36px; }

  /* NAV MOBILE */
  .nav-toggle {
    display: flex;
  }
  .nav-menu {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.98);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 24px 24px 48px;
    transform: translateX(100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  .nav-menu.open {
    transform: translateX(0);
  }
  .nav-link {
    padding: 14px 0;
    font-size: 1.05rem;
    border-bottom: 1px solid var(--color-border);
    border-radius: 0;
  }
  .nav-link:last-child { border-bottom: none; }
  .nav-link--cta {
    margin-left: 0;
    margin-top: 24px;
    text-align: center;
    padding: 14px;
    border-radius: var(--radius-md);
    background: var(--color-accent);
  }

  /* HERO MOBILE */
  .hero-name { font-size: 2.4rem; }
  .hero-code {
    font-size: 0.75rem;
    overflow: hidden;
  }
  .hero-code-body { font-size: 0.72rem; padding: 12px 14px; }
  .hero-badge-wrap { gap: 10px; }
  .hero-badge { padding: 12px 14px; min-width: 80px; }
  .hero-badge-num { font-size: 1.4rem; }
  .hero-scroll-hint { display: none; }

  /* ABOUT MOBILE */
  .about-avatar-wrap {
    flex-direction: column;
    align-items: flex-start;
  }
  .about-avatar { width: 96px; height: 96px; }

  /* WORKS MOBILE */
  .work-header { padding: 20px 20px 16px; }
  .work-body { padding: 16px 20px 20px; gap: 16px; }
  .work-outcomes {
    flex-direction: row;
    flex-wrap: wrap;
    padding: 12px;
    gap: 8px 16px;
  }
  .work-outcome-num { font-size: 1.2rem; }

  /* SKILL ITEM MOBILE */
  .skill-item {
    grid-template-columns: 1fr auto;
    grid-template-rows: auto auto;
    gap: 6px 8px;
  }
  .skill-name { grid-column: 1; grid-row: 1; }
  .skill-level { grid-column: 2; grid-row: 1; }
  .skill-bar-wrap { grid-column: 1 / -1; grid-row: 2; }

  /* CAREER MOBILE */
  .career-item {
    grid-template-columns: 64px 24px 1fr;
    gap: 0 16px;
  }
  .career-year-start { font-size: 0.78rem; }

  /* PHILOSOPHY MOBILE */
  .philosophy-item { padding: 20px; }
  .philosophy-item:nth-child(2n) { border-right: 1px solid var(--color-border); }

  /* CONTACT MOBILE */
  .contact-actions { flex-direction: column; align-items: stretch; }
  .btn--contact-primary,
  .btn--contact-secondary { justify-content: center; }

  /* FOOTER MOBILE */
  .footer-inner { flex-direction: column; text-align: center; }
}

/* ============================================================
   PRINT
   ============================================================ */
@media print {
  .site-header, .hero-scroll-hint, .nav-toggle { display: none; }
  .section { padding-block: 32px; }
}