/* Freestyle + Skill Saga: shared brand glass, scoped to Training. */
/* One centered brand layer shared by every application tab. */
.brand-main{position:relative;isolation:isolate;background:#d9eaec;min-width:0}
.brand-background{position:sticky;top:0;height:calc(100vh - 5rem);margin-bottom:calc(-100vh + 5rem);pointer-events:none;z-index:-1}
.brand-background .training-signal{z-index:0}
.brand-page{position:relative;min-height:100%}
.brand-page .training-shell{background:transparent}
.brand-page .training-shell>.training-signal{display:none}
.training-shell {position:relative;isolation:isolate;min-height:75vh;background:#d9eaec;color:#174e55;border-radius:24px;padding:28px;overflow:hidden;}
.training-shell > :not(.training-signal) {position:relative;z-index:1;}
.training-signal {position:absolute;inset:0;overflow:hidden;z-index:-1;pointer-events:none;display:grid;place-items:center;opacity:.12;}
/* Native GIF: 1024 x 875. Scale down only; surrounding color matches its pixels. */
.training-signal img {position:absolute;width:100%;max-width:1024px;height:auto;object-fit:contain;}
.training-signal i {position:absolute;width:50%;aspect-ratio:1;border:2px solid #027581;border-radius:50%;animation:studio-signal 9s ease-out infinite;}
.training-signal i:nth-last-child(2) {animation-delay:3s}.training-signal i:last-child {animation-delay:6s}
.training-studio,.training-shell {--activity:114,85,143;--active:#72558f;}
.training-studio {position:relative;isolation:isolate;}
.training-studio::before {content:'';position:absolute;inset:-28px;z-index:-1;pointer-events:none;background:radial-gradient(ellipse at 45% 26%,rgba(var(--activity),.19),rgba(var(--activity),.09) 48%,transparent 85%);}
.activity-zeroError {--activity:114,85,143;--active:#72558f;}
.activity-reaction {--activity:49,125,146;--active:#317d92;}
.activity-alien {--activity:174,65,82;--active:#ae4152;}
.studio-heading {display:flex;justify-content:space-between;gap:20px;align-items:center;margin:24px 0;}
.studio-kicker {font:700 10px/1.5 monospace;letter-spacing:2px;color:#027581;}
.studio-heading h2 {font-size:clamp(30px,4vw,48px);letter-spacing:-1.8px;line-height:1.1;color:#027581;margin:10px 0;}
.studio-heading p {line-height:1.6;color:#406b72;}
.studio-heading img {width:160px;max-width:25%;object-fit:contain;}
.studio-tabs {display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:0 0 28px;position:relative;isolation:isolate;}
.studio-tab {position:relative;text-align:left;min-width:0;min-height:108px;border-radius:16px;border:0;background:rgba(255,255,255,.18);padding:18px;color:#274c53;cursor:pointer;box-shadow:none;}
.studio-tab strong {display:block;font-size:19px;}.studio-tab small {display:block;margin-top:7px;line-height:1.4;}.studio-tab span {display:inline-block;margin-top:10px;font:700 10px monospace;text-transform:uppercase;letter-spacing:1px;}
.studio-tab.is-active {background:rgba(var(--activity),.42);border:0;box-shadow:0 8px 30px rgba(var(--activity),.28);color:#122d36;}
.studio-tab.is-active::after {content:'';position:absolute;left:4%;right:4%;top:92%;height:150px;z-index:-1;pointer-events:none;background:linear-gradient(180deg,rgba(var(--activity),.32),rgba(var(--activity),.14) 38%,rgba(var(--activity),.05) 70%,transparent);filter:blur(14px);animation:studio-breeze .65s ease-out both;}
.studio-workspace {display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:22px;align-items:start;}
.studio-topics,.studio-basket,.studio-route-summary {background:rgba(255,255,255,.52);border:1px solid rgba(255,255,255,.82);box-shadow:inset 0 1px 0 #fff,0 12px 30px #1948510b;border-radius:20px;padding:22px;min-width:0;}
.studio-topics {position:relative;isolation:isolate;border:0;box-shadow:none;background:transparent;}
.studio-topics::before {content:'';position:absolute;inset:-28px -12px 0;z-index:-1;pointer-events:none;border-radius:40%;background:linear-gradient(180deg,rgba(var(--activity),.28),rgba(var(--activity),.14) 42%,rgba(var(--activity),.05) 78%,transparent);filter:blur(14px);transition:background .25s;}
.studio-route-summary {border:0;background:transparent;box-shadow:none;}
.studio-breadcrumb {display:flex;flex-wrap:wrap;align-items:center;gap:5px;margin-bottom:22px;font-size:12px;}
.studio-breadcrumb button,.studio-fusion-summary button {background:transparent;border:0;color:#275c64;text-align:left;padding:8px;min-height:44px;cursor:pointer;text-decoration:underline;}
.studio-section-title h3,.studio-difficulty h3 {font-size:23px;color:#174e55;line-height:1.4;margin:8px 0 16px;}
.studio-legend {display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;font-size:12px;font-weight:600;color:#294e55;margin-bottom:18px;}
.studio-legend>span {display:inline-flex;align-items:center;gap:7px;}
.studio-legend i {width:9px;height:9px;border-radius:50%;background:#b85868;box-shadow:0 0 0 3px #b858681a;}.studio-legend>span:nth-child(2) i {background:#967220;box-shadow:0 0 0 3px #9672201a}.studio-legend>span:nth-child(3) i{background:#267660;box-shadow:0 0 0 3px #2676601a}
.studio-topic-grid {display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;}
.studio-topic {--signal:184,88,104;position:relative;isolation:isolate;overflow:hidden;display:flex;flex-direction:column;justify-content:center;gap:9px;min-height:122px;padding:19px 32px 19px 18px;text-align:left;cursor:pointer;border:0;border-radius:14px;background:rgba(255,255,255,.19);color:#183f46;box-shadow:none;}
.studio-topic.is-mid {--signal:170,133,51}.studio-topic.is-high {--signal:53,131,116}
.studio-topic::before {content:'';position:absolute;inset:0;z-index:-1;background:repeating-linear-gradient(135deg,transparent 0 9px,rgba(255,255,255,.2) 9px 10px);}
.studio-topic::after {display:none;}
.studio-topic .studio-topic-status {display:inline-flex;align-items:center;align-self:flex-start;gap:8px;font-size:12px;font-weight:700;line-height:1.4;letter-spacing:0;color:#75404b;background:#fff9;border:1px solid rgba(var(--signal),.38);border-radius:999px;padding:6px 10px;box-shadow:0 2px 8px rgba(var(--signal),.07);}
.studio-topic.is-mid .studio-topic-status {color:#705415;background:#fff7dbb3}.studio-topic.is-high .studio-topic-status {color:#225e4e;background:#e4fff0b3}
.studio-topic-status::before {content:'';width:9px;height:9px;flex:none;border-radius:50%;background:rgb(var(--signal));box-shadow:0 0 0 3px rgba(var(--signal),.16);}
.studio-topic span {font:700 9px monospace;letter-spacing:1.4px;color:#41636b;}.studio-topic strong {font-size:15px;line-height:1.45;}.studio-topic b {position:absolute;right:12px;bottom:12px;opacity:.6;}
.studio-difficulty > div {display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;}
.studio-difficulty button {min-height:96px;text-align:left;padding:16px;border:0;background:rgba(255,255,255,.22);border-radius:12px;color:#24464f;cursor:pointer;}
.studio-difficulty button strong,.studio-difficulty button small {display:block;line-height:1.5;}.studio-difficulty button small {font-size:11px;margin-top:5px;}.studio-difficulty button:last-child {grid-column:1/-1;min-height:48px;}
.training-studio button:disabled {opacity:.45;cursor:not-allowed;}
.studio-basket {position:sticky;top:16px;}
.studio-basket-head {display:flex;align-items:center;justify-content:space-between;gap:12px;}.studio-basket-head h3 {margin:0;font-size:20px;}.studio-basket-head > span {font:700 12px monospace;white-space:nowrap;background:#d8eaed;padding:7px;border-radius:7px;}
.studio-notice {font-size:12px;line-height:1.7;color:#406b72;min-height:40px;}
.studio-basket ol {list-style:none;padding:0;margin:16px 0;max-height:400px;overflow:auto;overscroll-behavior:contain;}
.studio-basket li {display:flex;gap:8px;align-items:start;margin-bottom:10px;padding:12px 8px;border-radius:10px;background:rgba(var(--activity),.11);border:1px solid rgba(var(--activity),.2);}
.studio-set-number {font:700 10px monospace;background:rgba(var(--activity),.25);padding:5px;border-radius:4px;}
.studio-basket li div {flex:1;min-width:0;}.studio-basket li strong,.studio-basket li small,.studio-basket li div > span {display:block;overflow-wrap:break-word;line-height:1.5;}.studio-basket li strong {font-size:13px;margin:4px 0;}.studio-basket li small,.studio-basket li div > span {font-size:10px;}
.studio-basket li button {flex:none;border:0;background:transparent;color:#274c53;width:32px;min-height:44px;font-size:20px;cursor:pointer;}
.studio-primary {display:block;background:#027581;border:1px solid #027581;color:white;border-radius:12px;padding:14px 20px;min-height:48px;font-weight:700;cursor:pointer;box-shadow:inset 0 1px 0 #ffffff44,0 6px 18px #02758122;}
.studio-basket .studio-primary {width:100%;}.studio-basket > small {display:block;font-size:10px;line-height:1.5;margin-top:12px;}.studio-clear {border:0;background:transparent;color:#41636b;min-height:44px;text-decoration:underline;cursor:pointer;}
.studio-fusion-summary {display:grid;gap:8px;padding:14px;margin-bottom:16px;background:rgba(var(--activity),.1);border-radius:12px;line-height:1.5;}.studio-fusion-summary span {font-size:12px;}
.studio-fusion-count > div {display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:9px;margin:20px 0;}.studio-fusion-count button:not(.studio-primary) {min-height:44px;border-radius:9px;border:1px solid #a8bfc5;background:white;color:#174e55;cursor:pointer;}.studio-fusion-count button[aria-pressed=true] {background:var(--active);color:white;}.studio-fusion-count label {display:flex;align-items:center;gap:14px;margin-bottom:20px;font-size:13px;}.studio-fusion-count input {width:90px;padding:10px;font-size:16px;border:1px solid #97b7be;border-radius:8px;}
.studio-route-summary {margin-top:24px;}.studio-route-summary ol {padding:0;list-style:none;}.studio-route-summary li {display:flex;justify-content:space-between;gap:14px;border-bottom:1px solid #aac4ca;padding:12px 0;font-size:13px;line-height:1.5;}
.training-shell .elt-mode-view .elt-topic-card {border:1px solid #bba6cc77;border-radius:15px;background:linear-gradient(135deg,#72558f22,#ffffff99);box-shadow:inset 0 1px 0 #ffffffaa,0 8px 24px #72558f0d;color:#204b54;}
.training-shell .elt-mode-view .elt-topic-card::before,.training-shell .elt-mode-view .elt-topic-card::after {display:none;}
.training-shell .elt-mode-view .elt-topic-card.is-selected {background:#72558f44;border-color:#72558faa;box-shadow:0 8px 25px #72558f22;}
.training-shell .elt-mode-view .elt-topic-card strong,.training-shell .elt-mode-view .elt-topic-card small {color:#204b54;}
.training-shell .elt-page-head h2,.training-shell .elt-page-head h1 {color:#027581;}.training-shell .elt-arcade-progress {border-radius:18px;background:#ffffff77;border:1px solid #fff;}
.training-studio button {touch-action:manipulation;font-family:inherit;}.training-studio button:focus-visible {outline:3px solid #027581;outline-offset:3px;}
@media(hover:hover) {.studio-topic:hover {box-shadow:0 8px 20px rgba(var(--signal),.16);border-color:rgba(var(--signal),.65)}.studio-difficulty button:not(:disabled):hover {background:rgba(var(--activity),.25)}}
@supports(backdrop-filter:blur(12px)) {@media(min-width:900px) and (pointer:fine){.studio-tab {backdrop-filter:blur(18px)}.studio-basket {backdrop-filter:blur(10px)}}}
@keyframes studio-signal {0% {transform:scale(.3);opacity:0}20% {opacity:1}100% {transform:scale(2);opacity:0}}
@keyframes studio-breeze {from {opacity:0;transform:translateY(-10px)}to {opacity:1;transform:translateY(0)}}
@media(max-width:1050px) {.studio-workspace {grid-template-columns:minmax(0,1fr) 260px}.training-shell {padding:20px}.studio-topics,.studio-basket {padding:16px}}
@media(max-width:760px) {.training-shell {padding:14px;border-radius:16px}.studio-heading {gap:10px;margin:18px 0}.studio-heading img {width:100px;max-width:28%}.studio-heading h2 {font-size:32px}.studio-heading p {font-size:13px}.studio-tabs {gap:7px;margin-bottom:18px}.studio-tab {padding:12px 9px;min-height:108px;border-radius:12px}.studio-tab strong {font-size:13px}.studio-tab small {font-size:10px}.studio-tab span {font-size:9px}.studio-tab.is-active::after {height:100px;filter:blur(8px)}.studio-workspace {grid-template-columns:minmax(0,1fr);gap:16px}.studio-topic-grid {gap:9px}.studio-topic {padding:15px 24px 15px 13px;min-height:116px}.studio-topic strong {font-size:13px}.studio-basket {position:static}.studio-basket ol {max-height:300px}.studio-difficulty > div {grid-template-columns:repeat(2,minmax(0,1fr))}.studio-difficulty button {padding:12px}.studio-route-summary li {flex-direction:column;gap:4px}.studio-breadcrumb {margin-bottom:14px}.studio-topic-grid .studio-topic:first-child:last-child {grid-column:1/-1}.studio-section-title h3 {font-size:21px}}
@media(max-width:360px) {.training-shell {padding:10px}.studio-topics {padding:12px}.studio-tab strong {font-size:12px}.studio-tab small {font-size:9px}.studio-topic-grid {grid-template-columns:minmax(0,1fr)}}
@media(prefers-reduced-motion:reduce) {.training-signal i,.studio-tab.is-active::after {animation:none}.training-signal > img {display:none}.studio-tab.is-active::after {filter:none;opacity:.55}}