/* =====================================================================
   TECH ACADEMY — map, lesson player, shared simulator widgets
   ===================================================================== */

[hidden] { display: none !important; }

/* ---------- map ---------- */
.academy-map { max-width: 1180px; margin: 0 auto; padding: 22px 22px 60px; }
.am-top { display: grid; grid-template-columns: auto 1fr 280px; gap: 20px; align-items: center; }
.am-title h1 { margin: 0; }
.am-rank { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; }
.am-rank-name { font: 900 1.2rem var(--display); color: var(--yellow); }
.am-rank .meter-t { margin: 6px 0 4px; }
.am-next { display: flex; gap: 18px; align-items: center; margin: 20px 0; padding: 18px 22px; border-radius: 18px; cursor: pointer;
  background: linear-gradient(110deg, rgba(61,200,255,.16), rgba(168,107,255,.12)); border: 2px solid var(--cyan); }
.am-next .btn { margin-left: auto; }
.am-next-t { font: 700 1.2rem var(--display); margin: 2px 0 4px; }
.am-mod { margin-top: 26px; }
.am-mod-head { display: flex; gap: 16px; align-items: center; margin-bottom: 12px; }
.am-mod-head h2 { margin: 2px 0; color: var(--c); }
.am-mod-ic { font-size: 54px; filter: drop-shadow(0 0 14px var(--c)); }
.am-path { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; }
.am-node { position: relative; display: grid; grid-template-columns: auto 1fr; grid-template-rows: auto auto auto; gap: 2px 10px; align-items: center; text-align: left;
  font: inherit; color: var(--text); background: var(--panel); border: 2px solid color-mix(in srgb, var(--c) 30%, var(--line)); border-radius: 14px; padding: 12px 14px; cursor: pointer; transition: transform .15s, border-color .15s, box-shadow .15s; }
.am-node:hover { transform: translateY(-3px); border-color: var(--c); box-shadow: 0 10px 30px color-mix(in srgb, var(--c) 25%, transparent); }
.am-num { position: absolute; top: -10px; left: -10px; width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; font: 900 .8rem var(--display); background: var(--bg2); border: 2px solid var(--c); color: var(--c); }
.am-ic { font-size: 34px; grid-row: 1 / span 3; }
.am-name { font: 700 1rem var(--display); line-height: 1.2; }
.am-stars { color: var(--yellow); letter-spacing: 2px; font-size: .9rem; }
.am-node.done { background: linear-gradient(160deg, color-mix(in srgb, var(--c) 16%, var(--panel)), var(--panel)); }
.am-node.next { border-color: var(--yellow); box-shadow: 0 0 0 3px rgba(255,210,61,.25); animation: glow2 1.6s ease-in-out infinite; }
.am-node.next .am-stars { color: var(--yellow); font: 900 .8rem var(--display); }
@keyframes glow2 { 50% { box-shadow: 0 0 26px rgba(255,210,61,.45); } }

/* ---------- lesson chrome ---------- */
.lesson { min-height: 100vh; display: flex; flex-direction: column; }
.ls-top { display: flex; align-items: center; gap: 16px; padding: 12px 20px; background: rgba(7,11,22,.88); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 20; backdrop-filter: blur(8px); }
.ls-title { display: flex; gap: 12px; align-items: center; }
.ls-title b { font: 900 1.15rem var(--display); }
.ls-ic { font-size: 34px; }
.ls-phases { margin-left: auto; display: flex; gap: 6px; }
.ls-ph { display: flex; align-items: center; gap: 6px; font: 700 .8rem var(--display); letter-spacing: .06em; color: var(--dim); padding: 6px 12px; border-radius: 999px; border: 1px solid var(--line); }
.ls-ph i { font-style: normal; width: 20px; height: 20px; border-radius: 50%; display: grid; place-items: center; background: var(--bg2); font-size: .7rem; }
.ls-ph.on { color: #061021; background: var(--c); border-color: var(--c); }
.ls-ph.on i { background: rgba(0,0,0,.2); }
.ls-ph.past { color: var(--ok); border-color: var(--ok); }
.ls-body { flex: 1; width: min(1240px, 100%); margin: 0 auto; padding: 22px 22px 60px; }

.mentor-face { font-size: 40px; line-height: 1; display: inline-block; animation: bob 2.2s ease-in-out infinite; }
.mentor-face.big { font-size: 64px; }
.mentor-line { display: flex; align-items: center; gap: 10px; }

/* ---------- learn slides ---------- */
.slide { display: grid; grid-template-columns: minmax(300px, 1fr) 1.1fr; gap: 28px; align-items: center; background: var(--panel); border: 2px solid color-mix(in srgb, var(--c) 35%, var(--line)); border-radius: 20px; padding: 26px; min-height: 420px; }
.slide.novis { grid-template-columns: 1fr; max-width: 860px; margin: 0 auto; }
.slide.enter { animation: slidein .35s cubic-bezier(.2,1.2,.4,1); }
.slide-vis { display: flex; align-items: center; justify-content: center; min-height: 300px; background: radial-gradient(ellipse at center, #1a2440, #0a0f1d); border-radius: 16px; padding: 16px; }
.slide-vis svg { max-width: 100%; height: auto; }
.slide-txt h2 { font-size: 1.7rem; color: var(--c); margin: 10px 0 12px; }
.slide-body { font-size: 1.15rem; line-height: 1.55; }
.slide-body p { margin: 0 0 12px; }
.slide-body ul { margin: 0 0 12px; padding-left: 22px; }
.slide-body li { margin-bottom: 6px; }
.slide-body b { color: var(--yellow); }
.kterm { display: inline-block; padding: 0 8px; border-radius: 6px; background: rgba(61,200,255,.15); color: var(--cyan); font-weight: 700; }
.analogy { border-left: 4px solid var(--purple); background: rgba(168,107,255,.1); padding: 10px 14px; border-radius: 0 10px 10px 0; margin: 10px 0; }
.analogy::before { content: "💡 Think of it like this: "; font-weight: 700; color: var(--purple); }
.warnbox { border-left: 4px solid var(--bad); background: rgba(255,77,109,.1); padding: 10px 14px; border-radius: 0 10px 10px 0; margin: 10px 0; }
.slide-nav { display: flex; align-items: center; justify-content: space-between; margin-top: 18px; }
.slide-nav .btn:disabled { opacity: .3; cursor: default; }
.dots { display: flex; gap: 8px; }
.dots i { width: 10px; height: 10px; border-radius: 50%; background: var(--line); }
.dots i.on { background: var(--c); transform: scale(1.3); }
.dots i.past { background: color-mix(in srgb, var(--c) 50%, var(--line)); }
.big-emoji { font-size: 120px; text-align: center; line-height: 1.1; }
.vis-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; width: 100%; }
.vis-card { background: rgba(255,255,255,.04); border: 1px solid var(--line); border-radius: 12px; padding: 12px; text-align: center; }
.vis-card .e { font-size: 48px; }
.vis-card b { display: block; font-family: var(--display); margin-top: 4px; }
.vis-card small { color: var(--dim); }

/* ---------- do phase ---------- */
.do-wrap { display: grid; grid-template-columns: 320px 1fr; gap: 20px; align-items: start; }
.do-side { position: sticky; top: 84px; display: flex; flex-direction: column; gap: 14px; }
.mentor-box { display: flex; gap: 12px; align-items: flex-start; background: var(--panel); border: 2px solid var(--c); border-radius: 16px; padding: 14px; }
.mentor-say { font-size: 1.02rem; line-height: 1.45; min-height: 3em; }
.mentor-say.pop { animation: slideup .3s; }
.mentor-say b { color: var(--yellow); }
.tasks { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 12px 16px; }
.tasks ol { margin: 8px 0 0; padding: 0; list-style: none; counter-reset: t; }
.tasks li { counter-increment: t; position: relative; padding: 8px 8px 8px 38px; border-radius: 10px; color: var(--dim); font-size: .95rem; }
.tasks li::before { content: counter(t); position: absolute; left: 6px; top: 7px; width: 24px; height: 24px; border-radius: 50%; display: grid; place-items: center; font: 900 .75rem var(--display); background: var(--bg2); border: 1px solid var(--line); }
.tasks li.cur { color: var(--text); background: rgba(255,210,61,.08); }
.tasks li.cur::before { border-color: var(--yellow); color: var(--yellow); }
.tasks li.done { color: var(--ok); text-decoration: line-through; text-decoration-color: rgba(47,227,154,.5); }
.tasks li.done::before { content: "✓"; background: var(--ok); color: #061021; border-color: var(--ok); }
.do-stage { background: var(--panel); border: 2px solid var(--line); border-radius: 18px; padding: 18px; min-height: 480px; position: relative; }
.do-done { position: sticky; bottom: 14px; z-index: 15; margin-top: 16px; }
.do-done-bar { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 14px 20px; border-radius: 16px; background: linear-gradient(90deg, rgba(47,227,154,.25), rgba(61,200,255,.2)); border: 2px solid var(--ok); backdrop-filter: blur(8px); animation: slideup .4s; }
.do-done-bar span { font: 900 1.2rem var(--display); color: var(--ok); }
.sim-h { font: 700 .8rem var(--display); letter-spacing: .1em; color: var(--dim); text-transform: uppercase; margin: 4px 0 8px; }
.sim-row { display: flex; gap: 16px; flex-wrap: wrap; align-items: flex-start; }
.sim-card { background: var(--bg2); border: 2px solid var(--line); border-radius: 14px; padding: 14px; }
.chip-btn { font: 700 .95rem var(--body); color: var(--text); background: var(--panel2); border: 2px solid var(--line); border-radius: 12px; padding: 10px 14px; cursor: pointer; transition: transform .1s, border-color .15s, background .15s; }
.chip-btn:hover:not(:disabled) { border-color: var(--cyan); transform: translateY(-2px); }
.chip-btn.sel { border-color: var(--yellow); background: rgba(255,210,61,.12); }
.chip-btn.good { border-color: var(--ok); background: rgba(47,227,154,.15); }
.chip-btn.bad { border-color: var(--bad); background: rgba(255,77,109,.15); }
.chip-btn:disabled { opacity: .45; cursor: default; }
.chip-btn.good:disabled { opacity: 1; }
.info-pop { background: var(--bg2); border: 2px solid var(--cyan); border-radius: 14px; padding: 14px 16px; animation: slideup .25s; }
.info-pop h3 { margin: 0 0 6px; color: var(--cyan); }
.info-pop .row { margin: 4px 0; }
.info-pop .row b { color: var(--yellow); }

/* drag & drop */
[data-drag], .draggable { cursor: grab; touch-action: none; user-select: none; }
.dnd-ghost { position: fixed; z-index: 120; pointer-events: none; opacity: .9; transform: rotate(-3deg) scale(1.05); box-shadow: 0 14px 40px rgba(0,0,0,.6); }
.dnd-src { opacity: .35; }
.dnd-hover { outline: 3px dashed var(--yellow) !important; outline-offset: 3px; background-color: rgba(255,210,61,.08) !important; }

/* meters & toggles */
.meter { margin: 8px 0; }
.meter-l { display: flex; justify-content: space-between; font-size: .85rem; color: var(--dim); margin-bottom: 4px; }
.meter-l b { color: var(--text); }
.meter-t { height: 12px; border-radius: 999px; background: rgba(255,255,255,.07); overflow: hidden; }
.meter-f { height: 100%; border-radius: 999px; transition: width .5s, background .3s; }
.tgl-row { display: flex; align-items: center; gap: 10px; width: 100%; font: 600 .95rem var(--body); color: #f4f6fb; background: transparent; border: 0; border-bottom: 1px solid rgba(255,255,255,.08); padding: 10px 4px; cursor: pointer; text-align: left; }
.tgl-row:hover { background: rgba(255,255,255,.04); }
.tgl-ic { width: 28px; height: 28px; border-radius: 8px; display: grid; place-items: center; background: rgba(255,255,255,.08); font-size: 16px; }
.tgl-l { flex: 1; } .tgl-l small { display: block; color: #9aa4bd; font-weight: 400; font-size: .75rem; }
.tgl { width: 44px; height: 26px; border-radius: 999px; background: #3a4258; position: relative; transition: background .2s; flex: none; }
.tgl i { position: absolute; top: 3px; left: 3px; width: 20px; height: 20px; border-radius: 50%; background: #fff; transition: left .2s; }
.tgl.on { background: #34c759; } .tgl.on i { left: 21px; }

/* ---------- phone simulator ---------- */
.phone { width: 290px; height: 590px; border-radius: 44px; background: #05070c; border: 10px solid #1d2230; box-shadow: 0 0 0 2px #3a4256, 0 30px 60px rgba(0,0,0,.6); position: relative; overflow: hidden; display: flex; flex-direction: column; flex: none; }
.ph-notch { position: absolute; top: 6px; left: 50%; transform: translateX(-50%); width: 96px; height: 24px; border-radius: 14px; background: #000; z-index: 3; }
.ph-status { display: flex; justify-content: space-between; align-items: center; padding: 10px 18px 6px; font: 700 .78rem var(--body); color: #fff; z-index: 2; }
.ph-icons { display: flex; align-items: center; gap: 5px; }
.ph-bars { display: flex; align-items: flex-end; gap: 2px; height: 15px; }
.ph-bars i { width: 3px; background: #555c6e; border-radius: 1px; }
.ph-bars i.on { background: #fff; }
.ph-gen { font-size: .7rem; }
.ph-bt { color: #4da3ff; font-family: var(--display); }
.ph-batt { width: 24px; height: 11px; border: 1.5px solid #fff; border-radius: 3px; padding: 1px; position: relative; }
.ph-batt i { display: block; height: 100%; background: #34c759; border-radius: 1px; }
.phone-screen { flex: 1; overflow: auto; padding: 8px 14px 14px; color: #f4f6fb; background: linear-gradient(180deg, #121828, #0b0f1a); }
.ph-home { height: 5px; width: 110px; border-radius: 3px; background: #fff; opacity: .5; margin: 6px auto 8px; flex: none; }
.ph-title { font: 800 1.3rem var(--body); margin: 8px 0 10px; }
.ph-group { background: rgba(255,255,255,.05); border-radius: 12px; padding: 0 10px; margin-bottom: 12px; }
.ph-btn { width: 100%; font: 700 .9rem var(--body); padding: 10px; border-radius: 10px; border: 0; background: #0a84ff; color: #fff; cursor: pointer; margin: 6px 0; }
.ph-btn.alt { background: rgba(255,255,255,.1); }
.ph-list-item { display: flex; align-items: center; gap: 10px; padding: 10px 4px; border-bottom: 1px solid rgba(255,255,255,.08); cursor: pointer; font-size: .92rem; }
.ph-list-item:hover { background: rgba(255,255,255,.05); }
.ph-note { font-size: .78rem; color: #9aa4bd; margin: 6px 2px; }
.ph-input { background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.15); color: #fff; border-radius: 8px; padding: 8px; width: 100%; font: inherit; }

/* ---------- check & recap ---------- */
.chk { max-width: 980px; margin: 0 auto; }
.chk-head { display: flex; gap: 14px; align-items: center; margin-bottom: 8px; }
.chk-q { font: 700 1.45rem/1.35 var(--body); margin: 14px 0 6px; }
.recap { max-width: 860px; margin: 0 auto; text-align: center; }
.recap-stars { font-size: 80px; letter-spacing: 10px; }
.recap-stars span { color: #2b3550; display: inline-block; }
.recap-stars span.on { color: var(--yellow); text-shadow: 0 0 30px rgba(255,210,61,.7); animation: stamp .5s cubic-bezier(.2,1.6,.4,1) both; }
.recap-box { text-align: left; background: var(--panel); border: 2px solid var(--c); border-radius: 16px; padding: 14px 20px; margin: 22px 0 14px; }
.recap-box ul { margin: 8px 0 0; padding-left: 22px; font-size: 1.08rem; line-height: 1.5; }
.recap-box li { margin-bottom: 6px; }
.exam-tip { text-align: left; background: rgba(255,210,61,.08); border: 1px solid rgba(255,210,61,.5); border-radius: 12px; padding: 12px 16px; }
.exam-tip b { color: var(--yellow); }

/* ---------- menu additions ---------- */
.mode-card.academy { --c: var(--green); animation: glow2 2.4s ease-in-out infinite; }
.hero-prog { display: flex; align-items: center; gap: 12px; margin-top: 10px; }
.hero-prog .meter-t { flex: 1; max-width: 360px; }
.hero-prog span { color: var(--dim); font-size: .9rem; }
.mode-card.hero.slim { padding: 16px 22px; }
.mode-card.hero.slim .mc-icon { font-size: 44px; }
.mode-card.hero.slim .mc-name { font-size: 1.4rem; }
.tip-box .btn { margin-left: 8px; }
.section-label { font: 900 .9rem var(--display); letter-spacing: .14em; color: var(--dim); margin: 22px 0 10px; display: flex; align-items: center; gap: 12px; }
.section-label::after { content: ""; flex: 1; height: 1px; background: var(--line); }

@media (max-width: 900px) {
  .am-top { grid-template-columns: 1fr; }
  .slide { grid-template-columns: 1fr; }
  .do-wrap { grid-template-columns: 1fr; }
  .do-side { position: static; }
  .ls-phases { display: none; }
  .am-next { flex-wrap: wrap; }
}