/* ==========================================================================
   RAPID REVISION — page-specific components
   mind map · image flowchart · flip cards · numbers grid · acts · terminal
   ========================================================================== */

/* ---------- compact hero ---------- */
.rev-hero { padding-top: 150px; padding-bottom: var(--sp-5); }
@media (max-width: 1020px) { .rev-hero { padding-top: 120px; } }

.quick-chips { display: flex; flex-wrap: wrap; gap: 12px; margin-top: var(--sp-4); }
.qchip {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 10px 20px; border-radius: var(--r-pill);
  font-family: var(--font-mono); font-size: 12.5px; font-weight: 600; letter-spacing: 1px;
  color: var(--ink-soft); background: var(--glass-bg); border: 1px solid var(--glass-border);
  transition: transform var(--t-fast) var(--ease-spring), border-color var(--t-fast), color var(--t-fast);
}
.qchip i { width: 7px; height: 7px; border-radius: 50%; flex: none; }
.qchip:hover { transform: translateY(-3px); color: #fff; border-color: rgba(255,255,255,0.3); }

/* ==========================================================================
   MIND MAP
   ========================================================================== */
.mindmap { margin-top: var(--sp-4); }

.mm-root {
  width: max-content; max-width: 92%; margin: 0 auto; text-align: center;
  padding: 18px 38px; border-radius: var(--r-lg); position: relative; z-index: 2;
  font-family: var(--font-display); font-weight: 700; font-size: clamp(1.15rem, 2.6vw, 1.55rem);
  background:
    radial-gradient(300px 120px at 50% -40px, rgba(124,108,255,0.35), transparent 70%),
    var(--glass-bg);
  border: 1px solid rgba(124,108,255,0.5);
  box-shadow: 0 18px 50px rgba(0,0,0,0.45), inset 0 1px 0 var(--glass-highlight);
}
.mm-root .mm-sub {
  display: block; font-family: var(--font-mono); font-size: 11px; font-weight: 600;
  letter-spacing: 2.2px; color: var(--ink-dim); text-transform: uppercase; margin-top: 6px;
}
.mm-trunk {
  width: 2.5px; height: 36px; margin: 0 auto;
  background: linear-gradient(180deg, rgba(124,108,255,0.9), rgba(124,108,255,0.35));
  border-radius: 2px;
}
.mm-wrap {
  position: relative; display: grid; grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-3); padding-top: 26px;
}
.mm-wrap::before {  /* horizontal rail */
  content: ''; position: absolute; top: 0; left: 16.66%; right: 16.66%; height: 2.5px;
  border-radius: 2px; opacity: 0.75;
  background: linear-gradient(90deg, var(--pink), var(--violet) 50%, var(--cyan));
}
.mm-col { position: relative; --mc: var(--violet); }
.mm-col.c-pink  { --mc: var(--pink); }
.mm-col.c-amber { --mc: var(--amber); }
.mm-col.c-cyan  { --mc: var(--cyan); }
.mm-col::before {  /* stub from rail down to branch node */
  content: ''; position: absolute; top: -26px; left: 50%; transform: translateX(-50%);
  width: 2.5px; height: 26px; background: var(--mc); opacity: 0.75;
}
.mm-branch {
  width: max-content; max-width: 100%; margin: 0 auto; padding: 12px 28px;
  border-radius: var(--r-pill); text-align: center; position: relative; z-index: 2;
  font-weight: 800; font-size: 1.02rem; letter-spacing: 0.3px; color: var(--mc);
  background: color-mix(in srgb, var(--mc) 14%, transparent);
  border: 1.5px solid color-mix(in srgb, var(--mc) 48%, transparent);
  box-shadow: 0 10px 26px rgba(0,0,0,0.35);
}
.mm-leafbar {
  display: block; margin-top: 3px; font-family: var(--font-mono); font-size: 10px;
  letter-spacing: 1.8px; text-transform: uppercase; font-weight: 600; color: var(--ink-dim);
}
.mm-leaves { margin-top: 16px; display: grid; gap: 9px; justify-items: center; }
.mm-leaves li {
  position: relative; max-width: 100%; padding: 9px 18px; border-radius: 12px;
  font-size: 13.5px; font-weight: 600; color: var(--ink-soft); text-align: center;
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  transition: border-color var(--t-fast), transform var(--t-fast) var(--ease-out), color var(--t-fast);
}
.mm-leaves li b { color: #fff; font-weight: 700; }
.mm-leaves li::before {  /* vertical connector */
  content: ''; position: absolute; top: -10px; left: 50%; transform: translateX(-50%);
  width: 2px; height: 9px; background: color-mix(in srgb, var(--mc) 55%, transparent);
}
.mm-leaves li:first-child::before { top: -16px; height: 15px; }
.mm-leaves li:hover { border-color: color-mix(in srgb, var(--mc) 55%, transparent);
  color: #fff; transform: translateY(-2px); }

@media (max-width: 980px) {
  .mm-wrap { grid-template-columns: 1fr; gap: var(--sp-5); padding-top: 0; }
  .mm-wrap::before, .mm-col::before { display: none; }
  .mm-trunk { height: 28px; }
  .mm-col { border-left: 2.5px solid color-mix(in srgb, var(--mc) 55%, transparent);
    padding-left: 20px; }
  .mm-branch { margin: 0; }
  .mm-leaves { justify-items: start; }
  .mm-leaves li { text-align: left; }
  .mm-leaves li::before { left: -22px; top: 50%; transform: translate(0, -50%); width: 14px; height: 2px; }
  .mm-leaves li:first-child::before { top: 50%; height: 2px; width: 14px; left: -22px; }
}

/* ==========================================================================
   SUMMARY CARDS — "chapter in short"
   ========================================================================== */
.sumgrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-3); }
@media (max-width: 980px) { .sumgrid { grid-template-columns: 1fr; } }
.sumcard { padding: clamp(24px, 2.6vw, 34px); display: grid; gap: 12px; position: relative; overflow: hidden; }
.sumcard::before {
  content: ''; position: absolute; left: 0; right: 0; top: 0; height: 3px;
  background: linear-gradient(90deg, var(--sc, var(--violet)), transparent 85%);
}
.sumcard.s-pink  { --sc: var(--pink); }
.sumcard.s-amber { --sc: var(--amber); }
.sumcard.s-cyan  { --sc: var(--cyan); }
.sumcard .s-tag {
  font-family: var(--font-mono); font-size: 11px; font-weight: 600; letter-spacing: 2px;
  text-transform: uppercase; color: var(--sc);
}
.sumcard h3 { font-family: var(--font-display); font-size: 1.45rem; font-weight: 700; }
.sumcard ul { display: grid; gap: 9px; }
.sumcard li { position: relative; list-style: none; padding-left: 22px;
  color: var(--ink-soft); font-size: 14.5px; line-height: 1.6; }
.sumcard li::before {
  content: ''; position: absolute; left: 2px; top: 0.62em; width: 8px; height: 8px;
  border-radius: 2.5px; transform: rotate(45deg);
  background: color-mix(in srgb, var(--sc) 65%, transparent);
}
.sumcard li b { color: #fff; }

/* terminal card */
.term {
  margin-top: var(--sp-4); border-radius: var(--r-lg); overflow: hidden;
  border: 1px solid rgba(57,208,249,0.32);
  background: rgba(4,8,18,0.8);
  box-shadow: 0 24px 60px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.06);
}
.term-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 13px 18px; border-bottom: 1px solid rgba(255,255,255,0.08);
}
.term-bar i { width: 11px; height: 11px; border-radius: 50%; }
.term-bar .t-name {
  margin-left: 10px; font-family: var(--font-mono); font-size: 11.5px; font-weight: 600;
  letter-spacing: 1.6px; color: var(--ink-dim); text-transform: uppercase;
}
.term-body { padding: 20px 24px; font-family: var(--font-mono); font-size: 13px;
  line-height: 2.0; color: #c9f2ff; overflow-x: auto; }
.term-body .t-p { color: var(--emerald); font-weight: 600; }
.term-body .t-num { color: var(--amber); font-weight: 600; }
.term-body .t-hl { color: #ffd1ec; font-weight: 600; }
.term-body .t-cm { color: var(--ink-dim); }

/* ==========================================================================
   IMAGE FLOWCHART
   ========================================================================== */
.flow { display: grid; justify-items: center; max-width: 780px; margin: var(--sp-5) auto 0; }
.flow-step {
  width: 100%; display: grid; grid-template-columns: 148px 1fr; gap: 24px; align-items: center;
  padding: 22px 28px; border-radius: var(--r-lg);
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  box-shadow: 0 16px 44px rgba(0,0,0,0.32), inset 0 1px 0 var(--glass-highlight);
  position: relative; --fc: var(--violet);
}
.flow-step.f-pink  { --fc: var(--pink); }
.flow-step.f-cyan  { --fc: var(--cyan); }
.flow-step.f-emerald{ --fc: var(--emerald); }
.flow-img {
  width: 148px; height: 106px; border-radius: 14px; overflow: hidden; flex: none;
  border: 1px solid rgba(255,255,255,0.18); position: relative;
  box-shadow: 0 10px 26px rgba(0,0,0,0.4);
}
.flow-img::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(125deg, rgba(255,255,255,0.14), transparent 45%);
}
.flow-img img { width: 100%; height: 100%; object-fit: cover; filter: saturate(0.9); }
.flow-step .fs-num {
  font-family: var(--font-mono); font-size: 11px; font-weight: 600; letter-spacing: 2.2px;
  color: var(--fc); text-transform: uppercase;
}
.flow-step h3 { font-family: var(--font-display); font-size: 1.18rem; margin-top: 3px; }
.flow-step p { color: var(--ink-soft); font-size: 14px; margin-top: 5px; line-height: 1.6; }
.flow-step p b { color: #fff; }

.flow-arrow {
  width: 2.5px; height: 42px; margin: 8px 0 6px; border-radius: 2px; position: relative;
  background: linear-gradient(180deg, var(--violet), var(--cyan));
}
.flow-arrow::after {
  content: ''; position: absolute; bottom: -2px; left: 50%; transform: translateX(-50%);
  border-left: 7px solid transparent; border-right: 7px solid transparent;
  border-top: 9px solid var(--cyan);
}

.flow-split {
  position: relative; width: 100%; margin-top: 8px; padding-top: 38px;
  display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-3);
}
.flow-split::before {  /* trunk from last step */
  content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 2.5px; height: 16px; background: var(--cyan);
}
.flow-split::after {  /* branch rail */
  content: ''; position: absolute; top: 16px; left: 25%; right: 25%; height: 2.5px;
  background: linear-gradient(90deg, var(--emerald), var(--rose));
}
.fs-card {
  position: relative; padding: 22px 24px; border-radius: var(--r-md); text-align: center;
  border: 1px solid var(--glass-border); background: var(--glass-bg);
}
.fs-card::before {  /* stub down from rail */
  content: ''; position: absolute; top: -22px; left: 50%; transform: translateX(-50%);
  width: 2.5px; height: 22px;
}
.fs-card.good::before { background: var(--emerald); }
.fs-card.bad::before  { background: var(--rose); }
.fs-card.good { border-color: rgba(52,224,161,0.42); background: rgba(52,224,161,0.07); }
.fs-card.bad  { border-color: rgba(255,93,122,0.42); background: rgba(255,93,122,0.06); }
.fs-card .fs-t { font-weight: 800; font-size: 12px; letter-spacing: 1.8px; text-transform: uppercase; }
.fs-card.good .fs-t { color: #a5f5d3; }
.fs-card.bad  .fs-t { color: #ffb3c1; }
.fs-card p { color: var(--ink-soft); font-size: 13.5px; margin-top: 6px; line-height: 1.6; }
.fs-card p b { color: #fff; }

@media (max-width: 640px) {
  .flow-step { grid-template-columns: 1fr; }
  .flow-img { width: 100%; height: 130px; }
  .flow-split { grid-template-columns: 1fr; gap: 40px; }
  .flow-split::after { left: 50%; right: auto; width: 2.5px; top: 16px; bottom: 16px; height: auto;
    background: linear-gradient(180deg, var(--emerald), var(--rose)); }
  .fs-card::before { top: -22px; }
}

/* ==========================================================================
   ACTS & LAWS
   ========================================================================== */
.acts { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: var(--sp-3); }
.act { padding: 28px 30px; display: grid; gap: 10px; align-content: start; --ac: var(--violet); }
.act.a-pink   { --ac: var(--pink); }
.act.a-amber  { --ac: var(--amber); }
.act.a-emerald{ --ac: var(--emerald); }
.act.a-cyan   { --ac: var(--cyan); }
.act.a-rose   { --ac: var(--rose); }
.act .a-year {
  font-family: var(--font-mono); font-size: 12px; font-weight: 600; letter-spacing: 2.4px;
  color: var(--ac); text-transform: uppercase;
}
.act h3 { font-family: var(--font-display); font-size: 1.28rem; font-weight: 700; line-height: 1.25; }
.act p { color: var(--ink-soft); font-size: 14.5px; line-height: 1.65; }
.act p b { color: #fff; }
.act .a-tag {
  justify-self: start; padding: 6px 15px; border-radius: var(--r-pill);
  font-size: 11.5px; font-weight: 700; letter-spacing: 0.4px; color: var(--ac);
  border: 1px solid color-mix(in srgb, var(--ac) 45%, transparent);
  background: color-mix(in srgb, var(--ac) 10%, transparent);
}

/* ==========================================================================
   NUMBERS GRID
   ========================================================================== */
.numgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(158px, 1fr)); gap: var(--sp-2); }
.numcell {
  padding: 20px 14px; border-radius: var(--r-md); text-align: center;
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  transition: transform var(--t-fast) var(--ease-out), border-color var(--t-fast);
}
.numcell:hover { transform: translateY(-4px); border-color: rgba(255,255,255,0.25); }
.numcell .n {
  font-family: var(--font-display); font-weight: 800; font-size: 1.85rem; line-height: 1.1;
  background: linear-gradient(120deg, #fff, #c9c3ff);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  font-variant-numeric: tabular-nums;
}
.numcell .d { font-size: 11.5px; color: var(--ink-dim); font-weight: 600;
  letter-spacing: 0.4px; margin-top: 6px; line-height: 1.5; }

/* ==========================================================================
   FLASH CARDS (flip)
   ========================================================================== */
.flipgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: var(--sp-3); }
.flip { perspective: 1100px; cursor: pointer; }
.flip-inner {
  position: relative; width: 100%; height: 210px;
  transform-style: preserve-3d;
  transition: transform 650ms var(--ease-out);
}
.flip:hover .flip-inner, .flip:focus-visible .flip-inner, .flip.on .flip-inner { transform: rotateY(180deg); }
.face {
  position: absolute; inset: 0; border-radius: var(--r-md); padding: 24px;
  display: flex; flex-direction: column; justify-content: center; gap: 10px;
  backface-visibility: hidden; -webkit-backface-visibility: hidden;
  border: 1px solid var(--glass-border);
  box-shadow: 0 14px 40px rgba(0,0,0,0.35), inset 0 1px 0 var(--glass-highlight);
}
.face.front { background: var(--glass-bg); }
.face.front .fq { font-family: var(--font-display); font-weight: 700; font-size: 1.06rem; line-height: 1.4; }
.face.front .fhint {
  font-family: var(--font-mono); font-size: 10.5px; font-weight: 600; letter-spacing: 1.8px;
  text-transform: uppercase; color: var(--ink-dim);
}
.face.back {
  transform: rotateY(180deg);
  background:
    radial-gradient(240px 120px at 80% -20%, rgba(57,208,249,0.18), transparent 70%),
    linear-gradient(140deg, rgba(124,108,255,0.16), rgba(57,208,249,0.07)), rgba(255,255,255,0.03);
  border-color: rgba(124,108,255,0.45);
  font-size: 14.5px; color: var(--ink-soft); line-height: 1.6;
}
.face.back b { color: #fff; }

@media (prefers-reduced-motion: reduce) {
  .flip-inner { transition: none; }
  .flip:hover .flip-inner, .flip.on .flip-inner { transform: none; }
  .face.back { transform: none; position: relative; }
  .face.front { display: none; }
  .flip-inner { height: auto; }
}