:root {
  --bg: #f4f7fb;
  --bg-alt: #e9eef5;
  --surface: #ffffff;
  --surface-2: #f8fafc;
  --text: #0f172a;
  --text-soft: #475569;
  --text-muted: #64748b;
  --line: #dbe3ee;
  --accent: #0891b2;
  --accent-2: #06b6d4;
  --accent-soft: rgba(8, 145, 178, 0.1);
  --accent-glow: rgba(6, 182, 212, 0.22);
  --shadow: 0 8px 28px rgba(15, 23, 42, 0.06);
  --radius: 16px;
  --radius-sm: 10px;
  --font: "Inter", "Zen Kaku Gothic New", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
  --mono: "JetBrains Mono", "SF Mono", "Cascadia Code", "Consolas", monospace;
  --nav-h: 68px;
  --container: 1120px;
}

/* Typography
   --font  … UI・本文（Inter → 欧文 / Zen Kaku → 和文）
   --mono  … ターミナル・日付・メールなどリテラル情報のみ */

[data-theme="dark"] {
  --bg: #070b14;
  --bg-alt: #0c1222;
  --surface: #111827;
  --surface-2: #0f172a;
  --text: #e2e8f0;
  --text-soft: #94a3b8;
  --text-muted: #64748b;
  --line: #1e293b;
  --accent: #22d3ee;
  --accent-2: #67e8f9;
  --accent-soft: rgba(34, 211, 238, 0.1);
  --accent-glow: rgba(34, 211, 238, 0.16);
  --shadow: 0 22px 60px rgba(0, 0, 0, 0.35);
}

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

html {
  scroll-behavior: auto;
  scroll-padding-top: calc(var(--nav-h) + env(safe-area-inset-top, 0) + 20px);
  background: var(--bg);
  color-scheme: light dark;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  font-weight: 400;
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: clip;
  transition: background 0.25s, color 0.25s;
}

body.nav-open {
  overflow: hidden;
}

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

.bg-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 0%, black, transparent);
  opacity: 0.45;
}

.container {
  width: min(var(--container), calc(100% - 40px));
  margin-inline: auto;
}

.icon { width: 18px; height: 18px; }
.icon-sm { width: 14px; height: 14px; }

/* Header */
.header {
  position: fixed;
  inset: 0 0 auto;
  height: calc(var(--nav-h) + env(safe-area-inset-top, 0));
  padding-top: env(safe-area-inset-top, 0);
  z-index: 100;
  padding-left: env(safe-area-inset-left, 0);
  padding-right: env(safe-area-inset-right, 0);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 80%, transparent);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 0.94rem;
  letter-spacing: -0.03em;
}

.logo-node {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft), 0 0 18px var(--accent-glow);
}

.nav {
  display: flex;
  gap: 4px;
}

.nav a {
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--text-muted);
  padding: 8px 14px;
  border-radius: 999px;
  transition: color 0.15s, background 0.15s;
}

.nav a:hover,
.nav a.active {
  color: var(--text);
  background: var(--accent-soft);
}

.header-actions { display: flex; gap: 8px; }

.icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text-soft);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, transform 0.15s, background 0.15s;
  -webkit-tap-highlight-color: transparent;
}

.icon-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.icon-btn:active {
  transform: scale(0.96);
}

.icon-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.menu-btn { display: none; }

.mobile-nav {
  display: none;
  position: fixed;
  inset: calc(var(--nav-h) + env(safe-area-inset-top, 0)) 0 0;
  z-index: 99;
  padding: 20px;
  padding-bottom: calc(20px + env(safe-area-inset-bottom, 0));
  padding-left: calc(20px + env(safe-area-inset-left, 0));
  padding-right: calc(20px + env(safe-area-inset-right, 0));
  background: color-mix(in srgb, var(--bg) 94%, transparent);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--line);
  flex-direction: column;
  gap: 10px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.mobile-nav.open { display: flex; }

.mobile-nav a {
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  background: var(--surface);
  border: 1px solid var(--line);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: -0.01em;
}

/* Hero */
.hero {
  padding: calc(var(--nav-h) + 72px) 0 48px;
}

.hero + .section {
  padding-top: 40px;
}

.hero-layout {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 36px;
  align-items: stretch;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}

.hero h1 {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 20px;
}

.hero-greeting {
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 500;
}

.hero-name {
  font-size: clamp(2.4rem, 6vw, 3.6rem);
  line-height: 1.05;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-top: 2px;
}

.hero-name-en {
  font-size: clamp(0.92rem, 2vw, 1.06rem);
  color: var(--accent);
  font-weight: 500;
  letter-spacing: -0.01em;
}

.hero-role {
  font-size: clamp(1.1rem, 2.5vw, 1.45rem);
  color: var(--text-soft);
  font-weight: 500;
  margin-top: 4px;
}

.hero-detail {
  font-size: clamp(0.85rem, 1.8vw, 0.95rem);
  color: var(--text-muted);
  font-weight: 400;
  line-height: 1.5;
}

.hero-detail:first-of-type {
  margin-top: 8px;
}

.hero-lead {
  color: var(--text-soft);
  font-size: 0.9375rem;
  line-height: 1.8;
  letter-spacing: -0.005em;
  max-width: 52ch;
  min-height: calc(1.8em * 4);
  margin-bottom: 28px;
}

html.js-ready #hero-tagline {
  opacity: 0;
  transform: translateY(8px);
}

html.js-ready .hero-copy.visible #hero-tagline {
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity 0.55s cubic-bezier(0.22, 1, 0.36, 1) 0.22s,
    transform 0.55s cubic-bezier(0.22, 1, 0.36, 1) 0.22s;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  margin-bottom: 28px;
}

.hero-action {
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--text-muted);
  transition: color 0.15s;
}

.hero-action:hover {
  color: var(--accent);
}

.hero-action:not(:last-child)::after {
  content: "·";
  margin-inline: 14px;
  color: var(--line);
  pointer-events: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 12px;
  font-size: 0.92rem;
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s, border-color 0.15s;
}

.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #041016;
  box-shadow: 0 10px 28px var(--accent-glow);
}

[data-theme="dark"] .btn-primary { color: #041016; }

.btn-ghost {
  background: var(--surface);
  border-color: var(--line);
  color: var(--text);
}

.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

.terminal {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  min-height: 320px;
  display: flex;
  flex-direction: column;
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  background: var(--surface-2);
}

.terminal-traffic {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  padding: 2px 4px 2px 0;
  border-radius: 6px;
}

.traffic-btn {
  position: relative;
  display: block;
  width: 12px;
  height: 12px;
  border: none;
  border-radius: 50%;
  padding: 0;
  cursor: pointer;
  flex-shrink: 0;
  box-shadow:
    inset 0 0 0 0.5px rgba(0, 0, 0, 0.14),
    0 0.5px 1px rgba(0, 0, 0, 0.1);
  transition: filter 0.15s, transform 0.1s, box-shadow 0.15s;
  -webkit-tap-highlight-color: transparent;
}

.traffic-btn::before {
  content: "";
  position: absolute;
  inset: -10px;
}

.traffic-close { background: #ff5f57; }
.traffic-minimize { background: #febc2e; }
.traffic-maximize { background: #28c840; }

.traffic-btn:hover {
  filter: brightness(0.95);
}

.traffic-btn:active {
  transform: scale(0.9);
  filter: brightness(0.9);
}

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

.traffic-btn[aria-pressed="true"] {
  filter: brightness(0.9);
  box-shadow:
    inset 0 0 0 0.5px rgba(0, 0, 0, 0.22),
    inset 0 1px 2px rgba(0, 0, 0, 0.14);
}

#hero-terminal .traffic-close:disabled {
  cursor: default;
  opacity: 0.72;
}

#hero-terminal .traffic-close:disabled:hover,
#hero-terminal .traffic-close:disabled:active {
  filter: none;
  transform: none;
}

#hero-terminal .traffic-close:disabled::before {
  display: none;
}

.terminal-bar code {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.terminal--minimized .terminal-body,
.cli-window--minimized .cli-body {
  display: none;
}

.terminal--minimized .terminal-bar {
  border-bottom: none;
}

.terminal--closed {
  display: none;
}

.terminal-restore {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  padding: 6px 0;
  border: none;
  background: none;
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.15s;
  -webkit-tap-highlight-color: transparent;
}

.terminal-restore:hover {
  color: var(--accent);
}

.terminal-restore:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.terminal-restore[hidden] {
  display: none;
}

.cli-app--maximized {
  padding: 0;
}

.cli-app--maximized .cli-window {
  width: 100%;
  max-width: none;
  height: 100%;
  border-radius: 0;
  border-left: none;
  border-right: none;
}

.cli-window--maximized {
  width: 100%;
  height: 100%;
}

.terminal-body {
  padding: 20px;
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.8;
  color: var(--text-soft);
  white-space: pre-wrap;
  flex: 1;
}

#hero-terminal .terminal-body {
  min-height: 20lh;
}

#hero-terminal .terminal-line {
  display: block;
  opacity: 0;
  transform: translateY(5px);
  transition:
    opacity 0.32s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.32s cubic-bezier(0.22, 1, 0.36, 1);
}

#hero-terminal .terminal-line.is-visible {
  opacity: 1;
  transform: translateY(0);
}

#hero-terminal .terminal-body.is-typing {
  color: var(--text-soft);
}

#hero-terminal .terminal-body.is-typing:not(:has(.cursor))::after {
  content: "_";
  color: var(--accent);
  font-weight: 600;
  animation: term-cursor-blink 1.06s step-end infinite;
}

@keyframes term-cursor-blink {
  0%,
  100% { opacity: 1; }
  50% { opacity: 0; }
}

.terminal-body .prompt { color: var(--accent); }
.terminal-body .key { color: var(--text); }
.terminal-body .val { color: #86efac; }
[data-theme="light"] .terminal-body .val { color: #047857; }

.terminal-body .cursor {
  color: var(--accent);
  font-weight: 600;
}

.terminal-body .cursor.is-off {
  visibility: hidden;
}

html[data-ui="gui"] #hero-terminal:not(.terminal--minimized) .terminal-body {
  cursor: pointer;
}

html[data-ui="gui"] #hero-terminal:not(.terminal--minimized):focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

html[data-ui="gui"] #terminal-toggle {
  animation: term-toggle-hint 3.2s ease-in-out 3;
}

@keyframes term-toggle-hint {
  0%,
  100% {
    box-shadow: none;
    border-color: var(--line);
  }
  50% {
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 14%, transparent);
    border-color: color-mix(in srgb, var(--accent) 42%, var(--line));
  }
}

/* Terminal mode (fullscreen CLI) */
.cli-app {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  padding:
    max(12px, env(safe-area-inset-top, 0))
    max(12px, env(safe-area-inset-right, 0))
    max(12px, env(safe-area-inset-bottom, 0))
    max(12px, env(safe-area-inset-left, 0));
  background: var(--bg);
}

html[data-ui="terminal"] .cli-app {
  display: flex;
  align-items: stretch;
}

html[data-ui="terminal"] .bg-grid,
html[data-ui="terminal"] .header,
html[data-ui="terminal"] main,
html[data-ui="terminal"] .footer,
html[data-ui="terminal"] .mobile-nav {
  display: none !important;
}

html[data-ui="terminal"] body {
  overflow: hidden;
}

.cli-window {
  width: min(920px, 100%);
  height: 100%;
  margin-inline: auto;
  max-height: 100%;
  display: flex;
  flex-direction: column;
}

.terminal.terminal--minimized {
  min-height: 0;
  height: auto;
  align-self: start;
}

html[data-ui="terminal"] .cli-app:has(.cli-window--minimized) {
  align-items: flex-end;
  justify-content: flex-end;
  background: transparent;
  pointer-events: none;
}

html[data-ui="terminal"] .cli-app:has(.cli-window--minimized) .cli-window {
  pointer-events: auto;
}

html[data-ui="terminal"]:has(.cli-window--minimized) .bg-grid,
html[data-ui="terminal"]:has(.cli-window--minimized) .header,
html[data-ui="terminal"]:has(.cli-window--minimized) main,
html[data-ui="terminal"]:has(.cli-window--minimized) .footer {
  display: block !important;
}

html[data-ui="terminal"]:has(.cli-window--minimized) .mobile-nav.open {
  display: flex !important;
}

html[data-ui="terminal"]:has(.cli-window--minimized) body {
  overflow: auto;
}

.cli-window.cli-window--minimized {
  flex: 0 0 auto;
  align-self: flex-end;
  width: min(360px, 100%);
  height: auto;
  min-height: 0;
  max-height: none;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.cli-window--minimized .terminal-bar {
  border-bottom: none;
  border-radius: var(--radius);
}

.cli-window--minimized .traffic-maximize {
  box-shadow:
    inset 0 0 0 0.5px rgba(0, 0, 0, 0.14),
    0 0.5px 1px rgba(0, 0, 0, 0.1),
    0 0 0 2px color-mix(in srgb, var(--accent) 38%, transparent);
}

.cli-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.cli-output {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 20px;
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.75;
  color: var(--text-soft);
  -webkit-overflow-scrolling: touch;
}

.cli-block + .cli-block {
  margin-top: 14px;
}

.cli-cmd {
  color: var(--text-muted);
  margin-bottom: 4px;
}

.cli-out .prompt { color: var(--accent); }
.cli-out .key { color: var(--text); }
.cli-out .val { color: #86efac; }
.cli-out .muted { color: var(--text-muted); }
.cli-out .warn { color: #fbbf24; }
[data-theme="light"] .cli-out .val { color: #047857; }

.cli-out a.cli-link {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--accent) 45%, transparent);
  text-underline-offset: 3px;
  cursor: pointer;
}

.cli-out a.cli-link:hover {
  color: var(--accent-2);
  text-decoration-color: var(--accent-2);
}

/* CLI easter eggs */
.cli-nyan,
.cli-sl {
  margin-top: 4px;
}

.cli-nyan-stage {
  position: relative;
  overflow: hidden;
  width: 100%;
  min-height: 88px;
  margin: 6px 0 0;
  border-radius: 8px;
  border: 1px solid color-mix(in srgb, #8b9dff 55%, var(--line));
  background: #0c1024;
  box-shadow:
    inset 0 0 24px rgba(107, 124, 255, 0.18),
    0 0 0 1px rgba(255, 255, 255, 0.04);
}

.cli-nyan-canvas {
  display: block;
  width: 100% !important;
  min-height: 88px;
  height: 88px;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

.cli-sl-stage,
.cli-sl-frame {
  margin: 4px 0 0;
  font-family: var(--mono);
  font-size: 0.62rem;
  line-height: 1.08;
  color: var(--text);
  white-space: pre;
  overflow: hidden;
}

.cli-active {
  margin-top: 14px;
}

.cli-input-line {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-family: var(--mono);
  font-size: inherit;
}

.cli-prompt {
  white-space: nowrap;
  flex-shrink: 0;
}

.cli-input-line input {
  flex: 1;
  min-width: 0;
  border: none;
  background: transparent;
  color: var(--text);
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  outline: none;
  padding: 0;
}

.cli-input-line input::placeholder {
  color: var(--text-muted);
  opacity: 0.8;
}

.cli-suggest-inline {
  margin-top: 6px;
  padding-left: 2px;
}

.cli-suggest-inline[hidden] {
  display: none;
}

.cli-suggest-hint {
  margin: 0 0 4px;
  color: var(--text-muted);
  font-size: 0.72rem;
}

.cli-suggest-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.cli-suggest-item {
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding: 1px 0;
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.12s;
}

.cli-suggest-mark {
  flex-shrink: 0;
  width: 1ch;
  color: var(--accent);
  font-weight: 600;
}

.cli-suggest-item.is-active {
  color: var(--accent);
}

.cli-suggest-item:hover {
  color: var(--accent);
}

.cli-gui-btn {
  margin-left: 12px;
  padding: 5px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, background 0.15s, transform 0.1s;
  -webkit-tap-highlight-color: transparent;
}

.cli-gui-btn:hover {
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 45%, var(--line));
  background: var(--accent-soft);
}

.cli-gui-btn:active {
  transform: scale(0.97);
}

.cli-gui-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

#terminal-toggle[aria-pressed="true"] {
  border-color: var(--accent);
  color: var(--accent);
  animation: none;
  box-shadow: 0 0 0 3px var(--accent-soft);
}

/* Sections */
.section { padding: 88px 0; }
.section-alt { background: color-mix(in srgb, var(--bg-alt) 65%, transparent); }

.section-head {
  margin-bottom: 28px;
}

.section-head h2 {
  font-size: 1.28rem;
  letter-spacing: -0.03em;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.section-head h2::before {
  content: "//";
  font-family: var(--mono);
  font-size: 0.92em;
  color: var(--accent);
  font-weight: 500;
}

.section-lead {
  margin-top: 8px;
  color: var(--text-muted);
  font-size: 0.9375rem;
  font-weight: 400;
  letter-spacing: -0.005em;
}

/* About */
.about-bento {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  max-width: 720px;
}

.panel {
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
}

.panel h3 {
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
  color: var(--accent);
}

.panel p {
  color: var(--text-soft);
  font-size: 0.9375rem;
  line-height: 1.8;
}

.panel-accent {
  background: var(--surface);
}

/* Skills */
.skills-bento {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.skill-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}

.skill-card h3 {
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.skill-card h3::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--accent);
}

.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.skill-list span {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  padding: 6px 10px;
  border-radius: 8px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  color: var(--text-soft);
}

/* Projects */
.projects-bento {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 18px;
}

.project-card {
  grid-column: span 6;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color 0.2s, transform 0.2s;
}

.project-card:hover {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--line));
  transform: translateY(-2px);
}

.project-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.project-type {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
}

.project-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: var(--accent-soft);
  color: var(--accent);
}

.project-card h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.project-card p {
  color: var(--text-soft);
  font-size: 0.9375rem;
  line-height: 1.7;
  flex: 1;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.project-tags span {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  padding: 4px 8px;
  border-radius: 6px;
  border: 1px solid var(--line);
  color: var(--text-muted);
}

.project-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.project-links a {
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.project-links a:hover { text-decoration: underline; }

/* Experience */
.experience-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 252px;
  gap: 36px;
  align-items: start;
}

.experience-aside {
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: sticky;
  top: calc(var(--nav-h) + 24px);
}

.exp-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow);
}

.exp-panel h3 {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.exp-panel--status {
  border-color: color-mix(in srgb, var(--accent) 18%, var(--line));
}

.exp-status {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 8px;
}

.exp-status div {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.exp-status dt {
  font-family: var(--mono);
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: var(--text-muted);
}

.exp-status dd {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.03em;
}

.exp-activity {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.exp-activity-label {
  font-family: var(--mono);
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.exp-bars {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.exp-bars li {
  display: grid;
  grid-template-columns: 34px 1fr 16px;
  gap: 8px;
  align-items: center;
}

.exp-bar-year {
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text-muted);
}

.exp-bar-track {
  height: 6px;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  overflow: hidden;
}

.exp-bar-fill {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(
    90deg,
    var(--accent),
    color-mix(in srgb, var(--accent) 55%, var(--accent-2))
  );
  min-width: 6px;
}

.exp-bar-count {
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--accent);
  text-align: right;
}

.exp-role-groups {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.exp-role-group-label {
  font-family: var(--mono);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.exp-role-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.exp-role-chip {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  padding: 5px 9px;
  border-radius: 7px;
  border: 1px solid var(--line);
  background: var(--surface-2);
  color: var(--text-soft);
}

.exp-role-chip em {
  font-style: normal;
  font-family: var(--mono);
  font-size: 0.6rem;
  font-weight: 600;
  margin-left: 4px;
  color: var(--text-muted);
}

.exp-role-group[data-group="noc"] .exp-role-chip {
  border-color: color-mix(in srgb, var(--accent) 30%, var(--line));
  color: var(--accent);
  background: color-mix(in srgb, var(--accent-soft) 80%, var(--surface-2));
}

.exp-role-group[data-group="stream"] .exp-role-chip {
  border-color: color-mix(in srgb, #8b5cf6 30%, var(--line));
  color: #7c3aed;
  background: color-mix(in srgb, #8b5cf6 10%, var(--surface-2));
}

[data-theme="dark"] .exp-role-group[data-group="stream"] .exp-role-chip {
  color: #c4b5fd;
  border-color: color-mix(in srgb, #c4b5fd 30%, var(--line));
  background: color-mix(in srgb, #8b5cf6 14%, var(--surface-2));
}

/* Timeline — network topology style */
.tl {
  position: relative;
  padding: 8px 0 8px 76px;
  min-width: 0;
}

.tl-spine {
  position: absolute;
  left: 75px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(
    180deg,
    var(--accent) 0%,
    color-mix(in srgb, var(--accent) 40%, var(--line)) 55%,
    var(--line) 100%
  );
}

.tl-year {
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 0;
  margin-left: -76px;
  min-height: 40px;
}

.tl-year--active {
  min-height: 52px;
  margin-bottom: 8px;
}

.tl-marker {
  position: relative;
  display: flex;
  align-items: flex-start;
  justify-content: flex-end;
  padding: 10px 18px 0 0;
}

.tl-year-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: -0.03em;
}

.tl-year--active .tl-year-label {
  color: var(--accent);
  font-size: 0.88rem;
}

.tl-node {
  position: absolute;
  right: -5px;
  top: 12px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--line);
  z-index: 1;
}

.tl-node--active {
  border-color: var(--accent);
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
}

.tl-node--hub {
  width: 12px;
  height: 12px;
  right: -6px;
  border-radius: 2px;
  transform: rotate(45deg);
}

.tl-branches {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 8px 0 24px;
  min-width: 0;
}

.tl-year:not(.tl-year--active) .tl-branches {
  padding: 0;
  min-height: 0;
}

.tl-branch {
  display: flex;
  align-items: flex-start;
  gap: 0;
  min-height: 32px;
}

.tl-arm {
  width: 28px;
  height: 1px;
  background: var(--accent);
  flex-shrink: 0;
  opacity: 0.7;
  margin-top: 11px;
}

.tl-branch:has(.tl-date) .tl-arm {
  margin-top: 22px;
}

.tl-branch--milestone .tl-arm {
  width: 36px;
  background: linear-gradient(90deg, var(--accent), color-mix(in srgb, var(--accent) 30%, transparent));
}

.tl-branch--future .tl-arm {
  background: repeating-linear-gradient(
    90deg,
    var(--text-muted) 0 5px,
    transparent 5px 9px
  );
  opacity: 0.5;
}

.tl-body {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 4px 0 2px;
  min-width: 0;
}

.tl-date {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.04em;
}

.tl-line {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 20px;
  align-items: start;
  font-size: 0.9375rem;
  color: var(--text-soft);
  line-height: 1.5;
}

.tl-line .tl-sep {
  display: none;
}

.tl-line .tl-role {
  text-align: right;
  white-space: nowrap;
}

.tl-venue {
  font-size: 0.76rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.tl-text {
  font-size: 0.9rem;
  color: var(--text-soft);
  line-height: 1.5;
  padding: 4px 0;
}

.tl-branch--milestone .tl-text {
  color: var(--text);
  font-weight: 600;
}

.tl-branch--future .tl-text,
.tl-branch--future .tl-line strong,
.tl-branch--future .tl-org-full,
.tl-branch--future .tl-venue,
.tl-branch--future .tl-date {
  color: var(--text-muted);
  font-weight: 500;
}

.tl-branch--future .tl-role {
  color: var(--text-soft);
}

.tl-line strong,
.tl-text strong {
  color: var(--text);
  font-weight: 600;
  overflow-wrap: anywhere;
}

.tl-org-full,
.tl-venue {
  overflow-wrap: anywhere;
}

.tl-event-link {
  margin: 5px 0 0;
  font-size: 0.8125rem;
}

.tl-event-link a {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

.tl-event-link a:hover {
  color: var(--accent-2);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.tl-sep {
  margin: 0 6px;
  color: var(--accent);
  font-size: 0.75rem;
}

.tl-role {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--accent);
}

.tl-branch[data-cat="qunog"] .tl-role { color: var(--accent-2); }
.tl-branch[data-cat="stream"] .tl-role { color: #8b5cf6; }
[data-theme="dark"] .tl-branch[data-cat="stream"] .tl-role { color: #c4b5fd; }

/* Contact */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px 56px;
  align-items: end;
  max-width: 760px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
}

.contact-hint {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.contact-email {
  display: inline-block;
  padding: 0;
  border: none;
  background: none;
  font-family: var(--mono);
  font-size: clamp(1.35rem, 4vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--text);
  line-height: 1.2;
  cursor: pointer;
  text-align: left;
  transition: color 0.15s;
}

.contact-email:hover {
  color: var(--accent);
}

.contact-email:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: 4px;
}

.contact-note {
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.75;
  color: var(--text-soft);
  /* コピー成功時の3行分を常に確保 — 表示切替で右カラムがズレない */
  min-height: calc(1.75em * 3);
  transition: opacity 0.2s;
}

.contact-note .prompt { color: var(--accent); }
.contact-note .key { color: var(--text); }
.contact-note .val { color: #86efac; }
.contact-note .muted { color: var(--text-muted); }
[data-theme="light"] .contact-note .val { color: #047857; }

.contact-note.is-copied {
  animation: contact-note-in 0.25s ease;
}

.contact-note.is-error .val {
  color: #f87171;
}

@keyframes contact-note-in {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.contact-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-bottom: 4px;
}

.contact-links a {
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--text-soft);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: color 0.15s;
}

.contact-links a::before {
  content: "→";
  color: var(--accent);
  font-weight: 600;
}

.contact-links a span {
  color: var(--text);
  font-weight: 600;
}

.contact-links a:hover {
  color: var(--accent);
}

.contact-links a:hover span {
  color: var(--accent);
}

.contact-links li[hidden] {
  display: none;
}

.tl-org-full {
  font-size: 0.76rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* Footer */
.footer {
  padding: 28px 0 40px;
  border-top: 1px solid var(--line);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Reveal — JS 失敗時も内容を表示 */
.reveal {
  opacity: 1;
  transform: none;
}

html.js-ready .reveal {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}

html.js-ready .reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* アンカー飛び先（Experience / Contact）— 通常スクロールより大きくふわっと */
html.js-ready section.is-anchor-reveal .reveal {
  transform: translateY(32px);
  transition:
    opacity 0.75s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.75s cubic-bezier(0.22, 1, 0.36, 1);
}

html.js-ready section#top .reveal {
  transform: translateY(18px);
  transition:
    opacity 0.62s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.62s cubic-bezier(0.22, 1, 0.36, 1);
}

/* Responsive */
@media (max-width: 960px) {
  .hero-layout,
  .about-bento,
  .skills-bento {
    grid-template-columns: 1fr;
  }

  .project-card {
    grid-column: span 12;
  }

  .experience-layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .experience-aside {
    position: static;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }
}

@media (max-width: 768px) {
  :root {
    --nav-h: 60px;
  }

  .container {
    width: min(var(--container), calc(100% - 32px));
  }

  .nav { display: none; }
  .menu-btn { display: grid; }

  .section { padding: 56px 0; }

  .hero {
    padding: calc(var(--nav-h) + env(safe-area-inset-top, 0) + 40px) 0 32px;
  }

  .cli-output {
    font-size: 0.76rem;
    line-height: 1.65;
    padding: 14px 16px;
  }

  /* プロンプトは出力と同サイズ、入力欄だけ 16px で iOS ズームを防ぐ */
  .cli-input-line {
    font-size: 0.76rem;
    line-height: 1.65;
    align-items: center;
  }

  .cli-input-line input {
    font-size: 16px;
    line-height: 1.5;
    touch-action: manipulation;
  }

  .hero + .section {
    padding-top: 28px;
  }

  .hero-layout {
    gap: 24px;
  }

  .terminal {
    min-height: auto;
  }

  .terminal-body {
    font-size: 0.76rem;
    padding: 16px;
    line-height: 1.7;
  }

  .traffic-btn {
    width: 14px;
    height: 14px;
  }

  .traffic-btn::before {
    inset: -14px;
  }

  .cli-window--minimized {
    width: min(300px, 92vw);
  }

  .experience-aside {
    grid-template-columns: 1fr;
  }

  .tl {
    padding-left: 56px;
  }

  .tl-spine {
    left: 55px;
  }

  .tl-year {
    grid-template-columns: 56px minmax(0, 1fr);
    margin-left: -56px;
  }

  .tl-marker {
    padding-right: 12px;
  }

  .tl-arm {
    width: 16px;
  }

  .tl-branch--milestone .tl-arm {
    width: 20px;
  }

  .tl-line {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .tl-line .tl-role {
    text-align: left;
    white-space: normal;
  }

  .contact-wrap {
    grid-template-columns: 1fr;
    gap: 24px;
    align-items: start;
    max-width: none;
  }

  .contact-links {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 16px 20px;
  }

  .panel,
  .skill-card,
  .project-card,
  .exp-panel {
    padding: 20px;
  }

  .footer {
    padding-bottom: calc(32px + env(safe-area-inset-bottom, 0));
  }
}

@media (max-width: 480px) {
  .container {
    width: min(var(--container), calc(100% - 24px));
  }

  .logo {
    font-size: 0.88rem;
  }

  .hero-name {
    font-size: clamp(2rem, 9vw, 2.6rem);
  }

  .skills-bento {
    gap: 12px;
  }

  .tl {
    padding-left: 48px;
  }

  .tl-spine {
    left: 47px;
  }

  .tl-year {
    grid-template-columns: 48px minmax(0, 1fr);
    margin-left: -48px;
  }

  .tl-year-label {
    font-size: 0.72rem;
  }

  .tl-line {
    font-size: 0.86rem;
  }

  .contact-email {
    font-size: clamp(1rem, 5.5vw, 1.35rem);
    word-break: break-all;
  }

  .exp-status {
    grid-template-columns: 1fr 1fr;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

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

  html.js-ready .reveal,
  html.js-ready section.is-anchor-reveal .reveal,
  html.js-ready section#top .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  html.js-ready #hero-tagline,
  html.js-ready .hero-copy.visible #hero-tagline {
    opacity: 1;
    transform: none;
    transition: none;
  }

  #hero-terminal .terminal-body.is-typing:not(:has(.cursor))::after {
    animation: none;
  }

  #hero-terminal .terminal-line {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .btn:hover,
  .project-card:hover,
  .contact-email:hover {
    transform: none;
  }

  .contact-note.is-copied {
    animation: none;
  }

  .terminal,
  .terminal-body,
  .cli-window,
  .cli-body {
    transition: none !important;
  }

  html[data-ui="gui"] #terminal-toggle {
    animation: none;
  }

}