/* Geometry L8: Right-Triangle Path */

.corner-page {
  --corner-ink: #241f1d;
  --corner-paper: #fff1d5;
  --corner-gold: #d8a64c;
  --corner-red: #bd6252;
  --corner-blue: #4f779b;
  --corner-green: #557f63;
  color: var(--corner-ink);
}

.corner-topbar {
  border-color: rgba(216, 166, 76, 0.28);
}

.corner-progressbar {
  background: rgba(255, 241, 213, 0.78);
  border: 1px solid rgba(216, 166, 76, 0.18);
  border-radius: 999px;
  height: 8px;
  margin: 0 auto 10px;
  max-width: 1180px;
  overflow: hidden;
}

.corner-progressbar span {
  background: linear-gradient(90deg, var(--corner-red), var(--corner-gold), var(--corner-blue));
  display: block;
  height: 100%;
  transition: width 320ms ease;
}

.corner-progress {
  display: flex;
  gap: 7px;
  justify-content: center;
  margin: 0 auto 12px;
}

.corner-progress__dot {
  background: rgba(36, 31, 29, 0.32);
  border: 1px solid rgba(255, 241, 213, 0.72);
  border-radius: 50%;
  height: 10px;
  width: 10px;
}

.corner-progress__dot.is-current {
  background: var(--corner-paper);
  box-shadow: 0 0 0 3px rgba(216, 166, 76, 0.22);
}

.corner-progress__dot.is-filled {
  background: var(--corner-gold);
  box-shadow: 0 0 12px rgba(216, 166, 76, 0.44);
}

.corner-room {
  margin: 0 auto;
  max-width: 1180px;
}

.corner-room__scene {
  background:
    radial-gradient(circle at 18% 18%, rgba(216, 166, 76, 0.22), transparent 24%),
    radial-gradient(circle at 82% 30%, rgba(79, 119, 155, 0.24), transparent 25%),
    linear-gradient(180deg, rgba(255, 241, 213, 0.12), rgba(36, 31, 29, 0.2)),
    url("../img/arena-geometry-workshop.jpg") center center / cover no-repeat;
  border: 1px solid rgba(255, 241, 213, 0.3);
  border-radius: 8px;
  box-shadow: 0 24px 60px rgba(36, 31, 29, 0.34);
  height: min(740px, calc(100vh - 130px));
  min-height: 680px;
  overflow: hidden;
  position: relative;
  isolation: isolate;
}

.corner-room__scene::before {
  background:
    repeating-linear-gradient(90deg, rgba(255, 241, 213, 0.055) 0 1px, transparent 1px 72px),
    radial-gradient(ellipse at 50% 76%, rgba(216, 166, 76, 0.13), transparent 46%),
    linear-gradient(180deg, rgba(20, 20, 20, 0.08), transparent 48%);
  content: "";
  inset: 0;
  position: absolute;
  z-index: 1;
}

.corner-room__scene::after {
  background:
    repeating-linear-gradient(90deg, rgba(36, 31, 29, 0.12) 0 4px, transparent 4px 44px),
    linear-gradient(180deg, #726653, #333646);
  border-top: 1px solid rgba(255, 241, 213, 0.2);
  bottom: -58px;
  box-shadow: 0 -20px 45px rgba(36, 31, 29, 0.3);
  content: "";
  height: 210px;
  left: -3%;
  position: absolute;
  right: -3%;
  transform: skewY(-2deg);
  z-index: -1;
}

.corner-room__paths {
  display: flex;
  gap: 20px;
  left: 5%;
  position: absolute;
  top: 34px;
  z-index: 2;
}

.corner-room__paths span {
  background: linear-gradient(180deg, rgba(255, 241, 213, 0.46), rgba(79, 119, 155, 0.42));
  border: 1px solid rgba(255, 248, 228, 0.26);
  border-radius: 8px;
  height: 86px;
  transform: skewX(-18deg);
  width: 42px;
}

.corner-room__squares {
  bottom: 72px;
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(2, 38px);
  pointer-events: none;
  position: absolute;
  right: 6%;
  z-index: 2;
}

.corner-room__squares span {
  background: linear-gradient(135deg, #f0d484, #8e6837);
  border: 1px solid rgba(255, 248, 228, 0.34);
  border-radius: 4px;
  box-shadow: 0 12px 20px rgba(36, 31, 29, 0.3);
  height: 38px;
  transform: rotate(9deg);
  width: 38px;
}

.corner-room__prompt {
  left: 50%;
  max-width: min(750px, 68%);
  position: absolute;
  text-align: center;
  text-shadow: 0 3px 10px rgba(20, 18, 16, 0.56);
  top: 3%;
  transform: translateX(-50%);
  z-index: 5;
}

.corner-room__prompt span,
.corner-shelf__title span,
.corner-card__title span,
.corner-proof-panel > span,
.corner-why span {
  color: rgba(255, 248, 228, 0.84);
  display: block;
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.corner-room__prompt h1 {
  color: #fff8df;
  font-family: var(--font-display);
  font-size: clamp(1.24rem, 2.25vw, 1.94rem);
  line-height: 1.04;
  margin: 3px 0 0;
}

.corner-shelf {
  background: linear-gradient(180deg, rgba(36, 31, 29, 0.9), rgba(50, 56, 74, 0.9));
  border: 2px solid rgba(255, 241, 213, 0.32);
  border-radius: 8px;
  box-shadow: 0 14px 28px rgba(28, 26, 22, 0.28);
  left: 4%;
  padding: 9px 12px;
  position: absolute;
  right: 4%;
  top: 13%;
  z-index: 4;
}

.corner-shelf__title {
  align-items: center;
  display: flex;
  justify-content: space-between;
  margin-bottom: 7px;
}

.corner-shelf__title strong {
  color: #fff2c8;
  font-size: 0.82rem;
}

.corner-shelf__rail {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.corner-shelf__slot {
  background: rgba(255, 241, 213, 0.08);
  border: 1px dashed rgba(255, 241, 213, 0.28);
  border-radius: 6px;
  display: grid;
  min-height: 74px;
  padding: 6px;
  place-items: center;
}

.corner-shelf__slot.is-current {
  border-color: rgba(216, 166, 76, 0.62);
}

.corner-shelf__slot.is-filled {
  background: rgba(216, 166, 76, 0.13);
  border-style: solid;
}

.corner-token {
  background: linear-gradient(180deg, #b9b19c, #66604f);
  border: 2px solid rgba(255, 248, 228, 0.18);
  border-radius: 7px;
  color: #fff8df;
  display: grid;
  min-height: 60px;
  padding: 7px;
  place-items: center;
  text-align: center;
  width: 100%;
}

.corner-token.is-filled {
  background: linear-gradient(180deg, #e8cb74, #7b6740);
  box-shadow: 0 0 18px rgba(216, 166, 76, 0.28);
}

.corner-token span {
  font-size: 0.64rem;
  font-weight: 900;
  text-transform: uppercase;
}

.corner-token strong {
  font-family: var(--font-display);
  font-size: clamp(1rem, 1.25vw, 1.25rem);
  line-height: 1;
}

.corner-steps {
  display: flex;
  gap: 8px;
  justify-content: center;
  left: 50%;
  max-width: 760px;
  position: absolute;
  top: 27%;
  transform: translateX(-50%);
  width: 74%;
  z-index: 5;
}

.corner-step {
  background: rgba(255, 241, 213, 0.86);
  border: 1px solid rgba(36, 31, 29, 0.1);
  border-radius: 999px;
  color: rgba(36, 31, 29, 0.72);
  flex: 1;
  font-size: 0.66rem;
  font-weight: 900;
  min-height: 28px;
  padding: 7px 10px;
  text-align: center;
}

.corner-step--active {
  background: #fff8df;
  color: var(--corner-red);
  box-shadow: 0 0 0 3px rgba(216, 166, 76, 0.2);
}

.corner-step--complete {
  background: linear-gradient(135deg, var(--corner-gold), #f0d78b);
  color: #342519;
}

.corner-step--pending {
  opacity: 0.74;
}

.corner-workbench {
  align-items: end;
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(0, 0.9fr) minmax(560px, 1.25fr) minmax(150px, 0.42fr);
  inset: 32% 4% 5%;
  position: absolute;
  z-index: 6;
}

.corner-card,
.corner-proof-panel,
.corner-veth {
  background: rgba(255, 241, 213, 0.94);
  border: 2px solid rgba(255, 248, 228, 0.62);
  border-radius: 8px;
  box-shadow: 0 18px 34px rgba(36, 31, 29, 0.24);
}

.corner-card {
  align-self: stretch;
  display: flex;
  flex-direction: column;
  min-height: 360px;
  padding: 13px;
}

.corner-card__title {
  align-items: baseline;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 9px;
}

.corner-card__title span {
  color: rgba(36, 31, 29, 0.54);
}

.corner-card__title strong {
  color: #453018;
  font-family: var(--font-display);
  font-size: clamp(1.12rem, 1.8vw, 1.62rem);
}

.corner-card__body {
  background:
    linear-gradient(90deg, rgba(36, 31, 29, 0.05) 1px, transparent 1px),
    linear-gradient(180deg, rgba(36, 31, 29, 0.05) 1px, transparent 1px),
    linear-gradient(180deg, #fffdf0, #f2deb6);
  background-size: 24px 24px, 24px 24px, auto;
  border: 1px solid rgba(36, 31, 29, 0.14);
  border-radius: 7px;
  display: grid;
  flex: 1;
  gap: 10px;
  grid-template-rows: 1fr auto;
  min-height: 288px;
  padding: 10px;
}

.corner-svg {
  display: block;
  height: min(100%, 270px);
  max-width: 100%;
  width: 100%;
}

.corner-triangle {
  fill: rgba(255, 248, 228, 0.82);
  stroke: rgba(52, 37, 25, 0.72);
  stroke-linejoin: round;
  stroke-width: 4;
}

.corner-triangle--not-right {
  fill: rgba(255, 248, 228, 0.74);
  stroke-dasharray: 0;
}

.corner-right-mark {
  fill: none;
  stroke: rgba(189, 98, 82, 0.86);
  stroke-width: 4;
}

.corner-proof-glow {
  fill: none;
  stroke: rgba(85, 127, 99, 0.8);
  stroke-linejoin: round;
  stroke-width: 8;
}

.corner-side,
.corner-caption {
  fill: #342519;
  font-family: var(--font-body);
  font-size: 22px;
  font-weight: 950;
  text-anchor: middle;
}

.corner-side--a {
  writing-mode: tb;
}

.corner-side--c {
  transform: rotate(-35deg);
  transform-origin: 226px 126px;
}

.corner-caption {
  fill: rgba(52, 37, 25, 0.68);
  font-size: 13px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.corner-equation {
  align-items: center;
  background: rgba(255, 248, 228, 0.9);
  border: 1px solid rgba(36, 31, 29, 0.12);
  border-radius: 8px;
  display: grid;
  gap: 8px;
  grid-template-columns: 1fr 46px 1fr;
  min-height: 58px;
  padding: 8px;
  text-align: center;
}

.corner-equation span,
.corner-equation strong {
  color: #453018;
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2vw, 1.55rem);
}

.corner-equation strong {
  color: rgba(36, 31, 29, 0.44);
}

.corner-equation.is-ready strong {
  color: var(--corner-red);
}

.corner-proof-panel {
  align-self: stretch;
  display: flex;
  flex-direction: column;
  gap: 10px;
  justify-content: center;
  min-height: 360px;
  padding: 13px;
}

.corner-proof-panel > span {
  color: rgba(36, 31, 29, 0.58);
  text-align: center;
}

.corner-square-grid {
  display: grid;
  gap: 9px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.corner-square-counter {
  background: #fff9e8;
  border: 1px solid rgba(36, 31, 29, 0.13);
  border-radius: 8px;
  min-width: 0;
  overflow: hidden;
  padding: 8px;
}

.corner-square-counter__label {
  align-items: center;
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 6px;
}

.corner-square-counter__label span {
  color: rgba(36, 31, 29, 0.58);
  font-size: 0.64rem;
  font-weight: 950;
  line-height: 1.05;
  text-transform: uppercase;
}

.corner-square-counter__label strong {
  color: var(--corner-red);
  font-family: var(--font-display);
  font-size: 1.22rem;
}

.corner-square-counter__value {
  display: grid;
  gap: 4px;
  grid-template-columns: 30px minmax(4.2ch, 1fr) 30px;
  min-width: 0;
}

.corner-square-counter__value button,
.corner-square-counter__quick button,
.corner-verdicts button {
  background: #fffdf0;
  border: 1px solid rgba(36, 31, 29, 0.14);
  border-radius: 7px;
  color: var(--corner-ink);
  cursor: pointer;
  font-size: 0.84rem;
  font-weight: 950;
  min-height: 32px;
}

.corner-square-counter__value strong {
  background: linear-gradient(180deg, #fffdf0, #ead08f);
  border: 2px solid rgba(216, 166, 76, 0.42);
  border-radius: 7px;
  color: #453018;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 1.7vw, 1.6rem);
  line-height: 1;
  min-width: 0;
  overflow: hidden;
  padding: 8px 2px;
  text-align: center;
  white-space: nowrap;
}

.corner-square-counter__quick {
  display: grid;
  gap: 5px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 6px;
}

.corner-square-counter__quick button {
  font-size: 0.7rem;
  min-height: 30px;
  padding: 4px 2px;
}

.corner-verdicts {
  display: grid;
  gap: 9px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.corner-verdicts button {
  min-height: 48px;
}

.corner-verdicts button:disabled {
  cursor: default;
  opacity: 0.55;
}

.corner-verdicts button.is-selected {
  background: linear-gradient(135deg, var(--corner-blue), #79aec5);
  border-color: rgba(255, 248, 228, 0.6);
  color: #fffdf0;
}

.corner-lock {
  align-items: center;
  background: linear-gradient(135deg, rgba(36, 31, 29, 0.22), rgba(36, 31, 29, 0.14));
  border: 0;
  border-radius: 8px;
  color: rgba(36, 31, 29, 0.58);
  cursor: pointer;
  display: inline-flex;
  font-weight: 950;
  gap: 9px;
  justify-content: center;
  min-height: 46px;
  padding: 10px 16px;
  width: 100%;
}

.corner-lock span {
  border-bottom: 4px solid currentColor;
  border-left: 4px solid currentColor;
  display: inline-block;
  height: 15px;
  transform: rotate(-45deg);
  width: 22px;
}

.corner-lock:disabled {
  cursor: default;
  opacity: 0.65;
}

.corner-lock.is-ready {
  background: linear-gradient(135deg, var(--corner-green), var(--corner-gold));
  box-shadow: 0 0 0 4px rgba(216, 166, 76, 0.2);
  color: #fffdf0;
}

.corner-veth {
  align-self: stretch;
  min-height: 360px;
  padding: 14px 10px;
  position: relative;
}

.corner-veth__compass {
  border: 4px solid var(--corner-gold);
  border-radius: 50%;
  height: 58px;
  margin: 0 auto 8px;
  position: relative;
  width: 58px;
}

.corner-veth__compass::before,
.corner-veth__compass::after {
  background: var(--corner-red);
  content: "";
  left: 25px;
  position: absolute;
  top: 8px;
}

.corner-veth__compass::before {
  height: 36px;
  transform: rotate(45deg);
  width: 5px;
}

.corner-veth__compass::after {
  height: 5px;
  transform: rotate(45deg);
  width: 36px;
}

.corner-veth__head {
  background: #6f4a3a;
  border-radius: 50% 50% 43% 43%;
  height: 60px;
  margin: 0 auto;
  position: relative;
  width: 56px;
}

.corner-veth__head span {
  background: #fff4d5;
  border-radius: 50%;
  bottom: 15px;
  box-shadow: 20px 0 0 #fff4d5;
  height: 8px;
  left: 14px;
  position: absolute;
  width: 8px;
}

.corner-veth__body {
  background: linear-gradient(180deg, var(--corner-blue), #3d384f);
  border-radius: 28px 28px 12px 12px;
  height: 104px;
  margin: -3px auto 0;
  width: 76px;
}

.corner-veth__bubble {
  background: #fffdf0;
  border: 2px solid rgba(36, 31, 29, 0.14);
  border-radius: 8px;
  bottom: 14px;
  box-shadow: 0 12px 22px rgba(36, 31, 29, 0.16);
  color: #453018;
  font-size: clamp(0.78rem, 1.08vw, 0.92rem);
  font-weight: 900;
  left: 8px;
  line-height: 1.2;
  padding: 11px;
  position: absolute;
  right: 8px;
  text-align: center;
}

.corner-celebration {
  align-items: center;
  background: rgba(255, 253, 240, 0.96);
  border: 2px solid rgba(216, 166, 76, 0.48);
  border-radius: 8px;
  bottom: 4%;
  box-shadow: 0 18px 34px rgba(36, 31, 29, 0.22);
  display: flex;
  gap: 14px;
  left: 5%;
  padding: 12px 14px;
  position: absolute;
  right: 5%;
  z-index: 9;
}

.corner-celebration strong {
  color: #453018;
  font-family: var(--font-display);
  font-size: clamp(1.02rem, 1.7vw, 1.45rem);
}

.corner-celebration > span {
  color: rgba(36, 31, 29, 0.66);
  font-size: 0.78rem;
  font-weight: 900;
  margin-left: auto;
  white-space: nowrap;
}

.corner-why {
  flex: 1;
  min-width: 220px;
}

.corner-why span {
  color: rgba(36, 31, 29, 0.48);
}

.corner-why p {
  color: rgba(36, 31, 29, 0.72);
  font-size: 0.82rem;
  font-weight: 750;
  line-height: 1.22;
  margin: 2px 0 0;
}

.corner-reward {
  display: grid;
  inset: 4%;
  place-items: center;
  position: absolute;
  z-index: 8;
}

.corner-reward__card {
  background: rgba(255, 253, 240, 0.96);
  border: 2px solid rgba(216, 166, 76, 0.5);
  border-radius: 8px;
  box-shadow: 0 28px 70px rgba(36, 31, 29, 0.36);
  display: grid;
  gap: 14px;
  max-height: 100%;
  max-width: 960px;
  overflow: auto;
  padding: 24px;
  text-align: center;
  width: min(92%, 960px);
}

.corner-reward__copy span {
  color: var(--corner-red);
  font-size: 0.74rem;
  font-weight: 900;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.corner-reward__copy h2 {
  color: #453018;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 0.94;
  margin: 4px 0 8px;
}

.corner-reward__copy p {
  color: rgba(36, 31, 29, 0.7);
  font-weight: 850;
  margin: 0 auto;
  max-width: 620px;
}

.corner-reward__tiles {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.corner-reward__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.corner-reward__badges span {
  background: rgba(216, 166, 76, 0.16);
  border: 1px solid rgba(216, 166, 76, 0.24);
  border-radius: 999px;
  color: #453018;
  font-size: 0.78rem;
  font-weight: 900;
  padding: 8px 12px;
}

.corner-reward__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

@media (max-width: 1040px) {
  .corner-room__scene {
    height: auto;
    min-height: 1060px;
    overflow: visible;
  }

  .corner-shelf,
  .corner-steps,
  .corner-workbench,
  .corner-celebration,
  .corner-room__prompt {
    position: relative;
    inset: auto;
    left: auto;
    right: auto;
    top: auto;
    transform: none;
  }

  .corner-shelf {
    margin: 110px 14px 12px;
  }

  .corner-room__prompt {
    margin: 16px auto 10px;
    max-width: 92%;
  }

  .corner-steps {
    flex-direction: column;
    margin: 0 auto 12px;
    width: 92%;
  }

  .corner-workbench {
    grid-template-columns: 1fr;
    margin: 0 14px 14px;
  }

  .corner-card,
  .corner-proof-panel,
  .corner-veth {
    min-height: auto;
  }

  .corner-veth {
    min-height: 280px;
  }

  .corner-celebration {
    flex-direction: column;
    margin: 0 14px 18px;
    text-align: center;
  }

  .corner-celebration > span {
    margin-left: 0;
  }

  .corner-reward__tiles,
  .corner-shelf__rail {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}