/* =========================================================
   Classic mode — the résumé as a painted cover, not a SaaS
   landing page. Day = the muted gouache-city palette; night =
   the ink-portrait album-cover palette. Same structure, two
   moods.
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Unbounded:wght@500;700;900&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;600;700&family=Caveat:wght@600;700&display=swap');

#classic {
  /* day — straight off the painting: dark tower, teal + dome, coral block, mixed sky */
  --cb-bg: #f1e8d8;
  --cb-panel: #faf4e7;
  --cb-ink: #2b241e;
  --cb-dim: #695c50;
  --cb-faint: #9c8d7c;
  --cb-accent: #cf5a3e;
  --cb-accent-soft: rgba(207, 90, 62, 0.13);
  --cb-mauve: #4a3c40;
  --cb-mauve-light: #938689;
  --cb-teal: #2f8b78;
  --cb-teal-light: #48a595;
  --cb-coral: #e2795d;
  --cb-coral-light: #ec9679;
  --cb-gold: #b8823f;
  --cb-gold-dark: #8a5f2c;
  --cb-ground: #e6c79c;
  --cb-leaf: #33562f;
  --cb-sky-dark: #4c6f8f;
  --cb-sky: #7fa4c4;
  --cb-sky-light: #bcd6e8;
  --cb-console-bg: #362a26;
  --cb-console-text: #ecdfce;
  --cb-radius: 20px;
  --cb-radius-sm: 12px;
  --cb-shadow: 0 18px 36px -18px rgba(43, 36, 30, 0.35);
  --cb-shadow-sm: 0 10px 22px -12px rgba(43, 36, 30, 0.3);
  --cb-hairline: 1px solid rgba(43, 36, 30, 0.14);
  --font-display: 'Unbounded', 'Inter', sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
  --font-hand: 'Caveat', cursive;

  position: fixed;
  inset: 0;
  overflow-y: auto;
  overflow-x: hidden;
  scroll-behavior: smooth;
  background: var(--cb-bg);
  color: var(--cb-ink);
  font-family: var(--font-body);
  z-index: 90;
  transition: background-color 0.5s ease, color 0.5s ease;
}
#classic[hidden] { display: none; }

#classic[data-theme='night'] {
  /* night — the same skyline at dusk, under the ink-portrait album palette */
  --cb-bg: #0b0a08;
  --cb-panel: #17130f;
  --cb-ink: #f2e9db;
  --cb-dim: #b4a693;
  --cb-faint: #6f6255;
  --cb-accent: #e2543f;
  --cb-accent-soft: rgba(226, 84, 63, 0.16);
  --cb-hairline: 1px solid rgba(242, 233, 219, 0.1);
  --cb-shadow: 0 20px 40px -16px rgba(0, 0, 0, 0.6);
  --cb-shadow-sm: 0 12px 24px -12px rgba(0, 0, 0, 0.55);
  --cb-sky-dark: #0f0c1a;
  --cb-sky: #1b1626;
  --cb-sky-light: #362a38;
  --cb-console-bg: #050403;
  --cb-console-text: #e8dfce;
  background: var(--cb-bg);
}

#classic * { box-sizing: border-box; }
#classic img, #classic svg { display: block; max-width: 100%; }
#classic a { text-decoration: none; }
#classic button { font: inherit; color: inherit; cursor: pointer; }

/* topbar */
#c-topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 16px 24px;
  background: color-mix(in srgb, var(--cb-bg) 78%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: var(--cb-hairline);
  transition: background-color 0.5s ease, border-color 0.5s ease;
}
#c-brand { display: flex; flex-direction: column; line-height: 1.2; }
#c-brand-name { font-family: var(--font-display); font-weight: 700; font-size: 1rem; letter-spacing: -0.01em; }
#c-brand-role { font-family: var(--font-mono); font-size: 0.68rem; color: var(--cb-dim); }
#c-controls { display: flex; gap: 8px; flex-wrap: wrap; }
.c-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 15px;
  border: var(--cb-hairline);
  border-radius: 999px;
  background: var(--cb-panel);
  color: var(--cb-ink);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 600;
  box-shadow: var(--cb-shadow-sm);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.c-btn:hover { transform: translateY(-2px); border-color: var(--cb-accent); color: var(--cb-accent); }
.c-btn:active { transform: translateY(0); }
.c-btn-accent { background: var(--cb-accent); color: #fff8f0; border-color: transparent; }
.c-btn-accent:hover { color: #fff8f0; filter: brightness(1.08); }

@keyframes theme-flip {
  0% { transform: rotate(0deg) scale(1); opacity: 1; }
  45% { transform: rotate(160deg) scale(0.55); opacity: 0; }
  55% { transform: rotate(200deg) scale(0.55); opacity: 0; }
  100% { transform: rotate(360deg) scale(1); opacity: 1; }
}
#c-theme-btn .icon { display: inline-block; }
#c-theme-btn.spin .icon { animation: theme-flip 0.6s ease; }

/* sky — a genuine blend of tones (dark cloud band + base blue + light
   wash), not a flat wash. Visible on every screen size. */
#c-sky-layer {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
#c-sky-layer svg { width: 100%; height: 100vh; display: block; }
.c-moon { opacity: 0; transition: opacity 0.6s ease; }
#classic[data-theme='night'] .c-moon { opacity: 1; }
.c-sun { opacity: 1; transition: opacity 0.6s ease; }
#classic[data-theme='night'] .c-sun { opacity: 0; }

/* cityscape — the painting, framing the page. Buildings sit fixed at the
   viewport edges, hidden below the fold, and rise into place as you
   scroll past the hero — then stay put, framing everything after. */
#c-cityscape {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
  display: none;
}
@media (min-width: 1280px) {
  #c-cityscape { display: block; }
}
.c-building {
  position: absolute;
  bottom: 0;
  width: clamp(200px, 16vw, 320px);
  overflow: visible;
  transform: translateY(38%);
  opacity: 0.35;
  filter: saturate(0.92);
  transition: opacity 0.6s ease, filter 0.6s ease;
}
#classic[data-theme='night'] .c-building { filter: saturate(0.8) brightness(0.72); opacity: 0.5; }
.c-window-lit rect { opacity: 0.3; transition: fill 0.6s ease, opacity 0.6s ease, filter 0.6s ease; }
#classic[data-theme='night'] .c-window-lit rect { fill: #ffd98a; opacity: 1; filter: drop-shadow(0 0 3px #ffd98a); }
.c-building.left { left: 0; }
.c-building.right { right: 0; }

#c-main { max-width: 1080px; margin: 0 auto; padding: 30px 24px 20px; position: relative; z-index: 1; }

/* hero */
.c-hero { padding: 44px 0 48px; position: relative; }
.c-hero-kicker { font-family: var(--font-mono); font-size: 0.78rem; color: var(--cb-dim); margin-bottom: 14px; letter-spacing: 0.02em; }
.c-hero-title { font-family: var(--font-display); font-weight: 700; font-size: clamp(2rem, 6vw, 3.1rem); line-height: 1.65; letter-spacing: -0.01em; margin: 0 0 18px; max-width: 780px; }
.c-hero-title mark { background: var(--cb-accent); color: #fff8f0; border-radius: 0.2em; padding: 0.06em 0.22em; box-decoration-break: clone; -webkit-box-decoration-break: clone; }
.c-hero-tagline { font-size: 1.08rem; color: var(--cb-dim); max-width: 560px; margin: 0 0 56px; }
.c-hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 32px; }
.c-hero-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; }
.c-stat { border: var(--cb-hairline); border-radius: var(--cb-radius-sm); background: var(--cb-panel); box-shadow: var(--cb-shadow-sm); padding: 12px 14px; }
.c-stat .k { font-family: var(--font-mono); font-size: 0.64rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--cb-faint); }
.c-stat .v { font-weight: 600; font-size: 0.9rem; margin-top: 3px; }

/* hanko seal + ink motif */
.c-seal {
  position: absolute;
  top: 6px;
  right: 0;
  width: 64px;
  height: 64px;
  transform: rotate(-8deg);
  opacity: 0.94;
  pointer-events: none;
}
@media (max-width: 720px) { #classic .c-seal { display: none; } }

/* sections */
.c-section { padding: 40px 0; border-top: var(--cb-hairline); scroll-margin-top: 84px; }
.c-section-title { font-family: var(--font-display); font-weight: 700; font-size: clamp(1.35rem, 3.4vw, 1.7rem); margin-bottom: 8px; }
.c-section-sub { font-family: var(--font-mono); font-size: 0.76rem; color: var(--cb-dim); margin-bottom: 24px; }

.c-card { border: var(--cb-hairline); border-radius: var(--cb-radius); background: var(--cb-panel); box-shadow: var(--cb-shadow); padding: 26px 28px; transition: background-color 0.5s ease, border-color 0.5s ease; }

.c-about p { color: var(--cb-dim); margin: 0 0 12px; font-size: 0.98rem; }
.c-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.c-chip { font-family: var(--font-mono); font-size: 0.74rem; padding: 6px 13px; border-radius: 999px; background: var(--cb-accent-soft); color: var(--cb-accent); }

.c-lang-bars { margin-top: 20px; display: flex; flex-direction: column; gap: 10px; }
.c-lang-row { display: flex; align-items: center; gap: 12px; }
.c-lang-row .lbl { width: 130px; font-size: 0.85rem; flex-shrink: 0; }
.c-lang-row .lbl small { display: block; color: var(--cb-faint); font-size: 0.68rem; }
.c-track { flex: 1; height: 8px; border-radius: 999px; background: var(--cb-bg); overflow: hidden; }
.c-fill { height: 100%; border-radius: 999px; background: var(--cb-sky); width: 0; transition: width 0.9s ease; }

.c-skills-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.c-skill-card h3 { font-family: var(--font-mono); font-size: 0.82rem; margin: 0 0 14px; text-transform: uppercase; letter-spacing: 0.03em; color: var(--cb-dim); }
.c-skill-row { margin-bottom: 11px; }
.c-skill-row:last-child { margin-bottom: 0; }
.c-skill-row .top { display: flex; justify-content: space-between; font-size: 0.82rem; margin-bottom: 5px; }
.c-skill-row .top span:last-child { font-family: var(--font-mono); font-size: 0.7rem; color: var(--cb-faint); }
.c-skill-card:nth-child(1) .c-fill { background: var(--cb-mauve); }
.c-skill-card:nth-child(2) .c-fill { background: var(--cb-teal); }
.c-skill-card:nth-child(3) .c-fill { background: var(--cb-coral); }
.c-skill-card:nth-child(4) .c-fill { background: var(--cb-gold); }

.c-timeline { display: flex; flex-direction: column; gap: 60px; }
.c-job-head { display: flex; flex-wrap: wrap; gap: 8px; align-items: baseline; margin-bottom: 7px; }
.c-job-title { font-weight: 700; font-size: 1rem; }
.c-job-company { color: var(--cb-dim); font-size: 0.85rem; }
.c-job-period { margin-left: auto; font-family: var(--font-mono); font-size: 0.7rem; color: var(--cb-faint); }
.c-job-summary { color: var(--cb-dim); font-size: 0.9rem; margin: 0 0 9px; }
.c-job-highlight { color: var(--cb-accent); font-size: 0.85rem; margin: 0 0 9px; font-weight: 600; }
.c-job-tasks { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 3px 16px; margin: 0 0 11px; padding: 0; list-style: none; }
.c-job-tasks li { font-size: 0.82rem; color: var(--cb-dim); padding-left: 14px; position: relative; }
.c-job-tasks li::before { content: '·'; position: absolute; left: 2px; top: -2px; color: var(--cb-accent); font-size: 1.3em; }

.c-task-groups { display: flex; flex-direction: column; gap: 14px; margin: 0 0 11px; }
.c-task-group-title { font-weight: 700; font-size: 0.82rem; margin: 0 0 6px; }
.c-task-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 3px 16px; }
.c-task-item { font-size: 0.82rem; color: var(--cb-dim); padding-left: 14px; position: relative; line-height: 1.5; }
.c-task-item::before { content: '·'; position: absolute; left: 2px; top: -2px; color: var(--cb-accent); font-size: 1.3em; }
.c-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.c-tag { font-family: var(--font-mono); font-size: 0.66rem; padding: 4px 9px; border-radius: 999px; background: var(--cb-bg); color: var(--cb-dim); }

.c-edu { margin-top: 16px; }

.c-sync { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 0.76rem; color: var(--cb-dim); margin-bottom: 20px; }
.c-sync .dot { width: 7px; height: 7px; background: var(--cb-teal); border-radius: 50%; }
.c-filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.c-filter { font-family: var(--font-mono); font-size: 0.74rem; padding: 7px 14px; border-radius: 999px; border: var(--cb-hairline); background: var(--cb-panel); color: var(--cb-dim); transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease; }
.c-filter:hover:not(.active) { border-color: var(--cb-accent); color: var(--cb-accent); }
.c-filter.active { background: var(--cb-accent); color: #fff8f0; border-color: transparent; }
.c-projects-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; }
.c-project-card { display: flex; flex-direction: column; gap: 8px; }
.c-project-top { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.c-project-top h3 { font-size: 1rem; margin: 0; }
.c-project-stars { font-family: var(--font-mono); font-size: 0.72rem; color: var(--cb-faint); }
.c-project-role { font-family: var(--font-mono); font-size: 0.66rem; color: var(--cb-faint); text-transform: uppercase; }
.c-project-desc { font-size: 0.86rem; color: var(--cb-dim); flex: 1; margin: 0; }
.c-project-note { font-size: 0.76rem; color: var(--cb-accent); font-weight: 600; }
.c-project-links { display: flex; gap: 12px; margin-top: 2px; }
.c-project-links a { font-family: var(--font-mono); font-size: 0.76rem; font-weight: 700; color: var(--cb-accent); background: var(--cb-accent-soft); padding: 5px 12px; border-radius: 999px; transition: background-color 0.15s ease, color 0.15s ease, transform 0.15s ease; }
.c-project-links a:hover { background: var(--cb-accent); color: #fff8f0; transform: translateY(-1px); }

/* fun zone */
.c-fun-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 16px; }
@media (max-width: 760px) { .c-fun-grid { grid-template-columns: 1fr; } }
.c-term { background: var(--cb-console-bg); color: var(--cb-console-text); font-family: var(--font-mono); font-size: 12.5px; border-radius: var(--cb-radius); box-shadow: var(--cb-shadow); display: flex; flex-direction: column; height: 320px; overflow: hidden; transition: background-color 0.5s ease; }
.c-term #term-output { flex: 1; min-height: 0; overflow-y: auto; padding: 14px; white-space: pre-wrap; color: var(--cb-console-text); opacity: 0.85; }
.c-term .term-input-row { flex-shrink: 0; display: flex; gap: 6px; padding: 10px 14px; border-top: 1px solid rgba(255, 255, 255, 0.08); }
.c-term .prompt { color: var(--cb-accent); }
.c-term .cmd-line { color: var(--cb-accent); opacity: 1; }
.c-term input { flex: 1; background: transparent; border: none; outline: none; color: var(--cb-console-text); font-family: var(--font-mono); font-size: 12.5px; }

.c-games-tabs { display: flex; gap: 6px; margin-bottom: 12px; flex-wrap: wrap; }
.c-games-tabs button { font-family: var(--font-mono); font-size: 0.72rem; padding: 6px 12px; border-radius: 999px; border: var(--cb-hairline); background: var(--cb-bg); color: var(--cb-dim); transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease; }
.c-games-tabs button:hover:not(.active) { border-color: var(--cb-accent); color: var(--cb-accent); }
.c-games-tabs button.active { background: var(--cb-accent); color: #fff8f0; }
.c-game-view { display: none; }
.c-game-view.active { display: block; }
.c-game-toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; flex-wrap: wrap; gap: 6px; }
.c-game-stats { font-family: var(--font-mono); font-size: 0.7rem; color: var(--cb-dim); display: flex; gap: 10px; }
.c-game-stats b { color: var(--cb-accent); }
.c-fun-games { border: var(--cb-hairline); border-radius: var(--cb-radius); box-shadow: var(--cb-shadow); padding: 16px; background: var(--cb-panel); min-height: 320px; }

#classic #bughunt-field { position: relative; height: 150px; border-radius: var(--cb-radius-sm); border: var(--cb-hairline); background: var(--cb-bg); overflow: hidden; font-family: var(--font-mono); }
#classic .bug { position: absolute; font-size: 20px; cursor: crosshair; background: none; }
#classic #bughunt-code { position: absolute; inset: 0; padding: 8px; color: var(--cb-faint); font-size: 10px; opacity: 0.6; pointer-events: none; }
.c-memory-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; max-width: 260px; margin: 0 auto; }
.c-memory-grid .memory-card { aspect-ratio: 1; border-radius: 8px; border: var(--cb-hairline); background: var(--cb-bg); display: flex; align-items: center; justify-content: center; font-size: 18px; cursor: pointer; }
.c-memory-grid .memory-card.flipped, .c-memory-grid .memory-card.matched { background: var(--cb-accent-soft); }
#classic #snake-canvas { background: #100e0b; border-radius: var(--cb-radius-sm); border: var(--cb-hairline); display: block; margin: 0 auto; max-width: 100%; }

.c-game-btn-row { display: flex; gap: 8px; }

.c-mines-grid { display: grid; gap: 2px; max-width: 260px; margin: 0 auto; }
.c-mines-cell, .c-mines-grid .mines-cell { aspect-ratio: 1; border-radius: 3px; border: var(--cb-hairline); background: var(--cb-bg); font-family: var(--font-mono); font-size: 11px; font-weight: 700; display: flex; align-items: center; justify-content: center; cursor: pointer; color: var(--cb-ink); padding: 0; }
.c-mines-grid .mines-cell.revealed { background: var(--cb-panel); cursor: default; }
.c-mines-grid .mines-cell.revealed.mine { background: var(--cb-coral); }
.c-mines-grid .mines-cell.revealed.hit { background: var(--cb-accent); }
.c-mines-grid .mines-cell.flagged { background: var(--cb-accent-soft); }
.c-mines-grid .mines-cell[data-n="1"] { color: #4a7fc9; }
.c-mines-grid .mines-cell[data-n="2"] { color: var(--cb-teal); }
.c-mines-grid .mines-cell[data-n="3"] { color: var(--cb-accent); }
.c-mines-grid .mines-cell[data-n="4"] { color: #8a5fc9; }
.c-mines-grid .mines-cell[data-n="5"] { color: var(--cb-gold-dark); }
.c-mines-grid .mines-cell[data-n="6"] { color: var(--cb-teal-light); }
.c-mines-grid .mines-cell[data-n="7"] { color: var(--cb-ink); }
.c-mines-grid .mines-cell[data-n="8"] { color: var(--cb-faint); }

.c-slots-machine { display: flex; flex-direction: column; align-items: center; gap: 12px; padding: 10px; }
.c-slots-machine .slots-reels { display: flex; gap: 10px; background: var(--cb-console-bg); border-radius: var(--cb-radius-sm); padding: 14px 18px; }
.c-slots-machine .slots-reel { font-size: 32px; width: 44px; text-align: center; }
.c-slots-msg { font-family: var(--font-mono); font-size: 0.7rem; color: var(--cb-dim); min-height: 16px; }

#classic #tetris-canvas { background: #100e0b; border-radius: var(--cb-radius-sm); border: var(--cb-hairline); display: block; margin: 0 auto; max-width: 100%; }
.c-tetris-layout { display: flex; gap: 12px; justify-content: center; align-items: flex-start; }
.c-tetris-side { display: flex; flex-direction: column; align-items: center; gap: 6px; padding-top: 4px; }
.c-tetris-next-label { font-family: var(--font-mono); font-size: 0.62rem; color: var(--cb-dim); text-transform: uppercase; letter-spacing: 0.06em; }
#classic #tetris-next { background: #100e0b; border-radius: var(--cb-radius-sm); border: var(--cb-hairline); display: block; }

/* contact */
.c-contact-grid { display: flex; flex-wrap: wrap; gap: 14px; }
.c-contact-card { flex: 1 1 220px; display: flex; align-items: center; gap: 14px; color: inherit; transition: transform 0.15s ease, border-color 0.15s ease; }
.c-contact-card:hover { transform: translateY(-2px); border-color: var(--cb-accent); }
.c-contact-card .ic { font-size: 1.4rem; }
.c-contact-card .lbl { font-family: var(--font-mono); font-size: 0.64rem; text-transform: uppercase; color: var(--cb-faint); }
.c-contact-card .val { font-weight: 600; }

#c-footer { text-align: center; padding: 34px 20px 60px; font-family: var(--font-mono); font-size: 0.72rem; color: var(--cb-faint); position: relative; z-index: 1; }
#c-footer a { color: var(--cb-accent); }
#c-footer .c-btn { margin-top: 18px; font-size: 0.72rem; }

/* side quick-nav */
#c-sidenav {
  position: fixed;
  right: 34px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 15;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.c-sidenav-item {
  position: relative;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: var(--cb-hairline);
  background: var(--cb-panel);
  color: inherit;
  font-size: 1rem;
  transition: transform 0.15s ease, background 0.15s ease;
}
.c-sidenav-item:hover { transform: translateX(-3px); background: var(--cb-accent-soft); }
.c-sidenav-item.active { background: var(--cb-accent); }
.c-sidenav-item .tip {
  position: absolute;
  right: calc(100% + 10px);
  top: 50%;
  transform: translateY(-50%);
  background: var(--cb-ink);
  color: var(--cb-bg);
  border-radius: 6px;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease;
}
.c-sidenav-item:hover .tip { opacity: 1; }
@media (max-width: 980px) {
  #c-sidenav { right: 16px; }
  .c-sidenav-item { width: 32px; height: 32px; font-size: 0.85rem; }
  .c-sidenav-item .tip { display: none; }
}
@media (max-width: 640px) {
  #c-sidenav { display: none; }
}

@media (max-width: 560px) {
  #c-main { padding: 22px 16px 14px; }
  .c-section { padding: 30px 0; }
}