/* =========================================================
   Kalzang — Program Manager · Portfolio
   Cute mountain-bridge theme (pastel + Baloo 2)
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Baloo+2:wght@500;600;700;800&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@500&display=swap');

:root{
  --bg: #F6F5FB;
  --surface: #FFFFFF;
  --cloud: #EFEBFA;
  --mist: #DCE3F0;
  --ink: #2B3447;
  --ink-soft: #5B6478;
  --sky: #5E84BE;
  --moss: #6FA083;
  --flame: #DD6E80;
  --marigold: #E8A23D;
  --blush: #FADADD;
  --lilac: #DCCCF4;
  --rock: #B7C0D6;
  --rock-dark: #97A2BD;
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --shadow: 0 10px 30px -12px rgba(43,52,71,0.18);
  --shadow-sm: 0 6px 16px -8px rgba(43,52,71,0.16);
  --maxw: 1120px;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Inter', system-ui, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
h1,h2,h3{
  font-family: 'Baloo 2', system-ui, sans-serif;
  color: var(--ink);
  margin: 0;
  line-height: 1.15;
}
.eyebrow{
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sky);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.wrap{ max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
a{ color: inherit; }
img,svg{ display:block; max-width:100%; }

/* ---------- MOUSE TRAIL ---------- */
.trail{
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  font-size: 14px;
  user-select: none;
  animation: trailFade 0.85s linear forwards;
}
@keyframes trailFade{
  from{ opacity: 1; transform: translate(-50%, -50%) scale(1) rotate(0deg); }
  to  { opacity: 0; transform: translate(-50%, -120%) scale(0.4) rotate(40deg); }
}
@media (prefers-reduced-motion: reduce){
  .trail{ display:none !important; }
}

/* ---------- NAV ---------- */
nav{
  position: sticky; top:0; z-index: 50;
  background: rgba(246,245,251,0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--mist);
}
nav .wrap{
  display:flex; align-items:center; justify-content: space-between;
  height: 72px;
}
.logo{
  font-family:'Baloo 2', sans-serif; font-weight:700; font-size:1.25rem;
  display:flex; align-items:center; gap:6px; text-decoration:none;
}
.logo .dot{ color: var(--marigold); }
.navlinks{ display:flex; gap: 28px; list-style:none; margin:0; padding:0; align-items:center; }
.navlinks a{
  text-decoration:none; font-size:0.92rem; font-weight:500; color: var(--ink-soft);
  transition: color 0.2s ease;
}
.navlinks a:hover, .navlinks a.active{ color: var(--sky); }
.nav-toggle{ display:none; background:none; border:none; cursor:pointer; padding:6px; }
.nav-toggle span{ display:block; width:22px; height:2px; background:var(--ink); margin:4px 0; border-radius:2px; }

/* ---------- HERO ---------- */
.hero{ padding: 64px 0 24px; }
.hero-grid{ display:flex; flex-direction:column; gap: 28px; }
.hero h1{ font-size: clamp(2.6rem, 6vw, 4.2rem); margin-top: 14px; }
.hero .tagline{
  font-size: clamp(1.05rem, 1.6vw, 1.35rem);
  color: var(--ink-soft);
  max-width: 640px;
  margin-top: 14px;
  font-weight: 500;
}
.hero .sub{ max-width: 600px; color: var(--ink-soft); margin-top: 14px; font-size: 1rem; }
.cta-row{ display:flex; gap:14px; margin-top: 26px; flex-wrap: wrap; }
.btn{
  font-family:'Inter', sans-serif; font-weight:600; font-size:0.95rem;
  padding: 13px 24px; border-radius: 999px; text-decoration:none;
  display:inline-flex; align-items:center; gap:8px;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
  border: none; cursor:pointer;
}
.btn-primary{ background: var(--marigold); color: #fff; box-shadow: var(--shadow-sm); }
.btn-secondary{ background: var(--surface); color: var(--ink); border:1px solid var(--mist); }
.btn:hover{ transform: translateY(-2px); }
.btn:disabled{ opacity: 0.55; cursor: not-allowed; transform:none; }

/* ---------- BRIDGE ILLUSTRATION ---------- */
.bridge-wrap{ margin-top: 12px; }
.flag{ animation: sway 3.4s ease-in-out infinite; transform-origin: top center; }
.flag:nth-child(odd){ animation-delay: -1.2s; }
.figure{ animation: bob 2.6s ease-in-out infinite; transform-origin: center; }
@keyframes sway{ 0%,100%{ transform: rotate(-3deg); } 50%{ transform: rotate(3deg); } }
@keyframes bob{ 0%,100%{ transform: translateY(0); } 50%{ transform: translateY(-3px); } }
@media (prefers-reduced-motion: reduce){
  .flag, .figure{ animation: none !important; }
}

/* ---------- BUNTING DIVIDER ---------- */
.bunting{ display:flex; justify-content:center; padding: 6px 0 8px; }

/* ---------- SECTION SHELL ---------- */
section{ padding: 86px 0; }
.section-head{ max-width: 620px; margin-bottom: 44px; }
.section-head h2{ font-size: clamp(1.7rem, 3vw, 2.3rem); margin-top: 10px; }
.section-head p{ color: var(--ink-soft); margin-top: 12px; }

/* ---------- WHAT I DO ---------- */
.do-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.do-card{
  background: var(--surface); border-radius: var(--radius-md);
  padding: 28px 24px; box-shadow: var(--shadow-sm);
  border: 1px solid var(--mist);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.do-card:hover{ transform: translateY(-4px); box-shadow: var(--shadow); }
.do-card .icon-badge{
  width:44px; height:44px; border-radius: 14px; display:flex; align-items:center; justify-content:center;
  font-size: 1.3rem; margin-bottom:16px;
}
.do-card h3{ font-size: 1.15rem; margin-bottom: 8px; }
.do-card p{ color: var(--ink-soft); font-size: 0.94rem; margin:0; }

/* ---------- CASE STUDIES ---------- */
.case-grid{ display:grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.case-card{
  background: var(--surface); border-radius: var(--radius-lg);
  padding: 30px; box-shadow: var(--shadow); border: 1px solid var(--mist);
  display:flex; flex-direction:column; gap: 14px;
}
.case-tags{ display:flex; gap:8px; flex-wrap:wrap; }
.tag{
  font-family:'JetBrains Mono', monospace; font-size: 0.68rem; letter-spacing:0.04em;
  padding: 5px 10px; border-radius: 999px; background: var(--cloud); color: var(--ink-soft);
}
.case-card h3{ font-size: 1.25rem; }
.case-row{ display:flex; gap:10px; font-size: 0.9rem; }
.case-row b{ color: var(--ink); min-width: 86px; flex-shrink:0; font-weight:600; }
.case-row span{ color: var(--ink-soft); }

/* ---------- TOOLKIT ---------- */
.pill-cloud{ display:flex; gap:10px; flex-wrap:wrap; }
.pill{
  font-size: 0.88rem; font-weight:500; padding: 9px 16px; border-radius: 999px;
  background: var(--surface); border: 1.5px solid var(--mist); color: var(--ink);
  transition: transform 0.15s ease;
}
.pill:hover{ transform: translateY(-2px); }
.pill.c1{ border-color: var(--sky); }
.pill.c2{ border-color: var(--moss); }
.pill.c3{ border-color: var(--flame); }
.pill.c4{ border-color: var(--marigold); }

/* ---------- PLAY / GAMES ---------- */
.game-grid{ display:grid; grid-template-columns: repeat(2, 1fr); gap: 22px; align-items:start; }
.game-card{
  background: var(--surface); border-radius: var(--radius-lg);
  padding: 28px; box-shadow: var(--shadow); border: 1px solid var(--mist);
}
.game-card h3{ font-size: 1.25rem; margin-top: 8px; }
.game-desc{ color: var(--ink-soft); font-size: 0.92rem; margin: 8px 0 18px; }
.game-card .btn{ padding: 11px 20px; font-size: 0.88rem; }

/* bridge timing game */
.bg-track{ position:relative; height:34px; background: var(--cloud); border-radius:999px; border:1px solid var(--mist); overflow:hidden; }
.bg-zone{ position:absolute; top:0; bottom:0; background: rgba(111,160,131,0.35); border-left:2px dashed var(--moss); border-right:2px dashed var(--moss); }
.bg-marker{ position:absolute; top:50%; width:18px; height:18px; margin-left:-9px; border-radius:50%; background: var(--marigold); transform: translateY(-50%); box-shadow: var(--shadow-sm); }
.bg-dots{ display:flex; gap:6px; margin:14px 0; flex-wrap:wrap; }
.bg-dot{ width:13px; height:13px; border-radius:50%; background: var(--mist); transition: background 0.2s ease; }
.bg-dot.filled{ background: var(--moss); }
.bg-status{ font-family:'JetBrains Mono', monospace; font-size:0.82rem; color: var(--ink-soft); margin-bottom: 14px; }

/* memory matching game */
.mem-stats{ font-family:'JetBrains Mono', monospace; font-size:0.82rem; color: var(--ink-soft); margin-bottom: 12px; }
.mem-grid{ display:grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.mem-card{ position:relative; height:78px; border:none; background:none; padding:0; cursor:pointer; perspective:600px; }
.mem-face{
  position:absolute; inset:0; display:flex; align-items:center; justify-content:center;
  text-align:center; padding:6px; font-size:0.66rem; line-height:1.25; border-radius:10px;
  backface-visibility:hidden; transition: transform 0.4s ease;
}
.mem-front{ background: var(--cloud); color: var(--sky); font-size:1.3rem; font-weight:700; transform: rotateY(0deg); }
.mem-back{ background:#fff; border:1.5px solid var(--mist); color: var(--ink); transform: rotateY(180deg); }
.mem-card.flipped .mem-front{ transform: rotateY(180deg); }
.mem-card.flipped .mem-back{ transform: rotateY(0deg); }
.mem-card.matched .mem-back{ background:#E9F4EE; border-color: var(--moss); }
.mem-card:focus-visible .mem-face{ outline: 2px solid var(--sky); outline-offset: 2px; }

/* ---------- ARCADE (falling catch game) ---------- */
.arcade-wrap{ max-width: 560px; margin: 0 auto; }
.arcade-frame{
  background: var(--surface); border: 4px solid var(--ink); border-radius: var(--radius-lg);
  box-shadow: 8px 8px 0 0 var(--ink); overflow: hidden;
}
.arcade-hud{
  background: var(--ink); color: #fff; padding: 12px 20px;
  display:flex; justify-content:space-between; align-items:center;
  font-family:'JetBrains Mono', monospace; font-size: 0.78rem;
}
.arcade-hud b.score{ color: var(--marigold); font-size: 0.95rem; }
.arcade-hud b.morale{ color: var(--flame); font-size: 0.95rem; }
.arcade-stage{
  position: relative; height: 300px; overflow: hidden; user-select: none;
  background: linear-gradient(to bottom, #EEF1FB, #FCEEF2);
}
.arcade-overlay{
  position:absolute; inset:0; display:flex; flex-direction:column;
  align-items:center; justify-content:center; text-align:center; padding: 24px;
  background: rgba(255,255,255,0.92);
}
.arcade-overlay.gameover{ background: rgba(43,52,71,0.95); color:#fff; }
.arcade-overlay .big{ font-size: 2.6rem; margin-bottom: 8px; }
.arcade-overlay h4{ font-size: 1.25rem; }
.arcade-overlay p{ font-size: 0.84rem; color: var(--ink-soft); max-width: 320px; margin: 6px 0 18px; }
.arcade-overlay.gameover p{ color: #C7CCDC; }
.arcade-item{
  position:absolute; transform: translate(-50%, -50%);
  display:flex; flex-direction:column; align-items:center; pointer-events:none;
}
.arcade-item .ico{ font-size: 1.7rem; line-height:1; }
.arcade-item .lbl{
  font-size: 0.5rem; font-weight:700; background: rgba(255,255,255,0.85);
  color: var(--ink); padding: 1px 5px; border-radius: 5px; margin-top: 2px;
  border:1px solid var(--mist); white-space: nowrap;
}
.arcade-basket{
  position:absolute; bottom: 16px; height: 40px; width: 96px;
  background: var(--ink); border: 2px solid var(--blush); border-radius: 12px;
  display:flex; align-items:center; justify-content:center;
  transform: translateX(-50%); transition: left 0.06s linear;
}
.arcade-basket span{ font-family:'JetBrains Mono', monospace; font-size:0.62rem; font-weight:700; color: var(--blush); letter-spacing:0.08em; }
.arcade-controls{ display:flex; gap: 12px; padding: 12px; background: var(--cloud); }
.arcade-controls button{
  flex:1; padding: 12px; border-radius: 12px; border: 2px solid var(--mist);
  background:#fff; font-weight:700; font-size: 1rem; cursor:pointer;
  transition: transform 0.1s ease;
}
.arcade-controls button:active{ transform: scale(0.96); }

/* ---------- MINI FUN GAMES (input/output cards) ---------- */
.fun-input{
  padding:10px 12px; border-radius:10px; border:1px solid var(--mist);
  width:100%; font-family:'Inter',sans-serif; font-size:0.92rem; margin-bottom:10px;
}
.fun-input:focus{ outline:2px solid var(--sky); outline-offset:1px; }
.fun-out{
  margin-top:14px; min-height: 1.3em; font-size:0.92rem; color: var(--ink);
  background: var(--cloud); border-radius: 12px; padding: 0 14px;
  max-height:0; overflow:hidden; opacity:0;
  transition: max-height 0.35s ease, opacity 0.35s ease, padding 0.35s ease;
}
.fun-out.show{ max-height: 240px; opacity:1; padding: 12px 14px; }

/* ---------- TRANSLATION STATION ---------- */
.ts-toggle{
  display:inline-flex; padding:5px; background: var(--cloud); border-radius:999px;
  border:1px solid var(--mist); margin-top: 6px;
}
.ts-toggle button{
  border:none; background:none; cursor:pointer; padding: 9px 18px; border-radius:999px;
  font-weight:700; font-size:0.78rem; color: var(--ink-soft); transition: all 0.2s ease;
}
.ts-toggle button.active{ background:#fff; color: var(--flame); box-shadow: var(--shadow-sm); }
.ts-toggle button.active.tech{ background: var(--ink); color: var(--marigold); }
.ts-list{ display:flex; flex-direction:column; gap: 16px; margin-top: 28px; }
.ts-card{
  border:2px solid var(--mist); border-radius: var(--radius-lg); padding: 24px;
  background:#fff; transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}
.ts-card h3{ font-size: 1.1rem; margin-bottom: 8px; }
.ts-card p{ margin:0; color: var(--ink-soft); }
.ts-card.tech{ background: var(--ink); border-color: var(--ink); }
.ts-card.tech h3{ color: var(--marigold); }
.ts-card.tech p{ color: #C7CCDC; font-family:'JetBrains Mono', monospace; font-size:0.88rem; }

/* ---------- ABOUT ---------- */
.about-grid{ display:grid; grid-template-columns: 220px 1fr; gap: 44px; align-items:flex-start; }
.avatar{
  width:180px; height:180px; border-radius: 50%; background: linear-gradient(160deg, var(--sky), var(--moss));
  display:flex; align-items:center; justify-content:center; color:#fff;
  font-family:'Baloo 2', sans-serif; font-weight:700; font-size: 3.6rem; box-shadow: var(--shadow);
}
.about-text p{ color: var(--ink-soft); margin: 0 0 16px; max-width: 640px; }
.about-text strong{ color: var(--ink); }
.pin{
  display:inline-flex; align-items:center; gap:6px; font-family:'JetBrains Mono', monospace;
  font-size:0.78rem; color: var(--moss); background: var(--cloud); padding:6px 12px; border-radius: 999px;
  margin-top: 14px;
}
.fact-grid{ display:grid; grid-template-columns: repeat(2,1fr); gap: 20px; margin-top: 8px; }
.fact-card{
  background: var(--surface); border-radius: var(--radius-md); padding: 22px;
  border: 1px solid var(--mist); box-shadow: var(--shadow-sm);
}
.fact-card h3{ font-size: 1.05rem; margin-bottom: 10px; display:flex; gap:8px; align-items:center; }
.fact-card ul{ margin:0; padding-left: 18px; color: var(--ink-soft); font-size: 0.92rem; }
.fact-card p{ margin:0; color: var(--ink-soft); font-size: 0.92rem; }

/* ---------- NOTES ---------- */
.notes-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.note-card{
  background: var(--surface); border-radius: var(--radius-md); padding: 22px;
  border: 1px solid var(--mist); box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease;
}
.note-card:hover{ transform: translateY(-4px); }
.note-card .date{ font-family:'JetBrains Mono', monospace; font-size:0.72rem; color: var(--ink-soft); }
.note-card h3{ font-size: 1.05rem; margin: 10px 0 0; }
.note-status{
  display:inline-block; margin-top:14px; font-size:0.74rem; font-weight:600;
  color: var(--marigold); background: #FBF0DD; padding:4px 10px; border-radius:999px;
}

/* ---------- STICKER ---------- */
.sticker{
  position:fixed; right:22px; bottom:22px; z-index: 40; max-width: 220px;
  background: var(--lilac); color: var(--ink); padding:14px 16px; border-radius:18px;
  box-shadow: var(--shadow); font-size: 0.84rem; font-weight:500;
  display:flex; gap:10px; align-items:flex-start;
}
.sticker .x{
  margin-left:auto; cursor:pointer; background:rgba(255,255,255,0.6); border:none;
  border-radius:50%; width:20px; height:20px; line-height:1; flex-shrink:0; font-weight:700;
}

/* ---------- CONTACT / FOOTER ---------- */
footer{ background: var(--ink); color: #E7E9F2; padding: 64px 0 36px; }
footer h2{ color: #fff; font-size: clamp(1.6rem, 3vw, 2.1rem); }
footer p{ color: #B7BDD2; max-width: 520px; }
.foot-row{ display:flex; justify-content:space-between; align-items:flex-end; flex-wrap:wrap; gap: 30px; }
.foot-links{ display:flex; gap: 22px; flex-wrap:wrap; }
.foot-links a{ text-decoration:none; color:#E7E9F2; font-size:0.92rem; border-bottom: 1px solid rgba(255,255,255,0.25); padding-bottom:2px; }
.foot-bottom{ margin-top: 50px; border-top:1px solid rgba(255,255,255,0.15); padding-top: 20px; font-size:0.8rem; color:#8C93AB; display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px; }

/* ---------- REVEAL ---------- */
.reveal{ opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in{ opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce){ .reveal{ opacity:1; transform:none; transition:none; } }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 880px){
  .do-grid, .case-grid, .notes-grid, .game-grid, .fact-grid{ grid-template-columns: 1fr; }
  .about-grid{ grid-template-columns: 1fr; }
  .avatar{ width:120px; height:120px; font-size:2.4rem; }
}
@media (max-width: 480px){
  .mem-grid{ grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 700px){
  .navlinks{ display:none; }
  .nav-toggle{ display:block; }
  nav.open .navlinks{
    display:flex; flex-direction:column; align-items:flex-start; position:absolute; top:72px; left:0; right:0;
    background: var(--bg); padding: 18px 28px 26px; border-bottom:1px solid var(--mist); gap:16px;
  }
}