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var(--border);padding:32px;display:grid;gap:28px}.learning-tool .section{display:flex;flex-direction:column;gap:12px}.learning-tool .section-title{font-size:1.15rem;font-weight:600;color:var(--text-strong)}.learning-tool .section-description{font-size:0.95rem;color:var(--text);line-height:1.55}.learning-tool .tooltip{position:relative;display:inline-block;color:var(--accent);cursor:help;border-bottom:1px dotted var(--accent)}.learning-tool .tooltip .tooltiptext{visibility:hidden;opacity:0;position:absolute;bottom:130%;left:50%;transform:translateX(-50%);width:260px;background:var(--text-strong);color:white;padding:14px;border-radius:10px;box-shadow:0 16px 36px rgba(15,23,42,0.25);transition:opacity 0.25s ease;font-size:0.88rem;line-height:1.5;z-index:10}.learning-tool .tooltip .tooltiptext::after{content:'';position:absolute;top:100%;left:50%;margin-left:-6px;border-width:6px;border-style:solid;border-color:var(--text-strong) transparent transparent transparent}.learning-tool .tooltip:hover .tooltiptext{visibility:visible;opacity:1}.learning-tool .color-selector{display:flex;flex-wrap:wrap;column-gap:25px;row-gap:50px;max-width:500px}.learning-tool .color-btn{width:80px;height:80px;border:3px solid transparent;border-radius:12px;cursor:pointer;transition:all 0.2s ease;position:relative;box-shadow:0 2px 8px rgba(15,23,42,0.15)}.learning-tool .color-btn:hover{transform:translateY(-2px);box-shadow:0 4px 14px rgba(15,23,42,0.25)}.learning-tool .color-btn.selected{border-color:#fff;border-width:5px;box-shadow:0 0 0 5px rgba(31,78,216,0.75),0 6px 20px rgba(31,78,216,0.35);transform:scale(1.08)}.learning-tool .color-btn.selected::after{content:"\2713";position:absolute;top:6px;right:6px;background:white;color:var(--accent);width:22px;height:22px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:0.95rem;font-weight:700;box-shadow:0 2px 6px rgba(15,23,42,0.25)}.learning-tool .color-label{position:absolute;bottom:-24px;left:50%;transform:translateX(-50%);font-size:0.85rem;color:var(--text);font-weight:500;white-space:nowrap;text-align:center}.learning-tool .color-btn.selected .color-label{bottom:-28px}.learning-tool .grid-container{display:flex;flex-direction:column;gap:12px}.learning-tool .grid-selector{display:inline-grid;grid-template-columns:repeat(3,90px);grid-template-rows:repeat(3,60px);gap:8px}.learning-tool .grid-cell{background:var(--surface);border:2px solid var(--border);border-radius:10px;cursor:pointer;transition:all 0.2s ease;display:flex;align-items:center;justify-content:center;font-size:0.9rem;color:var(--text);font-weight:600;user-select:none;box-shadow:0 2px 6px rgba(15,23,42,0.06)}.learning-tool .grid-cell:hover{border-color:var(--accent);background:var(--accent-soft);transform:translateY(-1px);box-shadow:0 4px 10px rgba(15,23,42,0.1)}.learning-tool .grid-cell.selected{background:var(--accent);border-color:var(--accent);color:white;box-shadow:0 4px 12px rgba(31,78,216,0.3);transform:scale(1.05)}.learning-tool .grid-help{font-size:0.88rem;color:var(--text-soft);cursor:default;user-select:none;pointer-events:none}.learning-tool .filter-btn{align-self:flex-start;padding:16px 24px;font-size:1.05rem;border-radius:12px;border:none;background:var(--accent);color:white;font-weight:600;cursor:pointer;box-shadow:0 18px 36px rgba(31,78,216,0.28);transition:transform 0.2s ease,box-shadow 0.2s ease;white-space:normal;word-wrap:break-word;overflow-wrap:break-word;text-align:center}.learning-tool .filter-btn:hover{transform:translateY(-1px);box-shadow:0 22px 44px rgba(31,78,216,0.32)}.learning-tool .clear-btn{align-self:flex-start;padding:12px 26px;border-radius:12px;border:none;background:var(--danger);color:white;font-weight:600;cursor:pointer;box-shadow:0 16px 32px rgba(214,69,69,0.25);transition:transform 0.2s ease,box-shadow 0.2s ease}.learning-tool .clear-btn:hover{transform:translateY(-1px);box-shadow:0 22px 44px rgba(214,69,69,0.28)}.learning-tool .results{background:var(--surface-muted);border-radius:18px;border:1px solid var(--border);padding:32px;box-shadow:0 14px 34px rgba(15,23,42,0.1)}.learning-tool .results-header{font-size:1.5rem;font-weight:600;color:var(--text-strong);margin-bottom:1.5rem}.learning-tool .result-group{margin-bottom:36px}.learning-tool .result-group:last-child{margin-bottom:0}.learning-tool .group-title{font-size:1rem;font-weight:600;color:var(--text);border-bottom:1px solid var(--border);padding-bottom:10px;margin-bottom:20px}.learning-tool .flag-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:20px}.learning-tool .flag-item{background:var(--surface);border-radius:14px;border:1px solid var(--border);padding:18px;text-align:center;box-shadow:0 12px 28px rgba(15,23,42,0.08);transition:all 0.2s ease;cursor:pointer}.learning-tool .flag-item:hover{transform:translateY(-2px);box-shadow:0 16px 36px rgba(15,23,42,0.12);border-color:var(--accent);background:var(--surface-muted)}.learning-tool .flag-item:active{transform:translateY(0);box-shadow:0 8px 20px rgba(15,23,42,0.1)}.learning-tool .flag-image{width:100%;border-radius:12px;box-shadow:0 10px 24px rgba(15,23,42,0.14);border:1px solid rgba(15,23,42,0.08);margin-bottom:12px}.learning-tool .flag-name{font-weight:600;color:var(--text-strong);font-size:0.95rem;line-height:1.4;word-wrap:break-word;overflow-wrap:break-word}.learning-tool .match-percentage{font-size:0.85rem;color:var(--text);font-weight:500;white-space:nowrap}.learning-tool .divider{border:none;border-top:1px dashed var(--border);margin:28px 0}.learning-tool .no-results,.learning-tool .loading{text-align:center;padding:60px 20px;color:var(--text)}.learning-tool .modal{display:none;position:fixed;inset:0;background:rgba(15,23,42,0.55);backdrop-filter:blur(4px);z-index:3000;align-items:center;justify-content:center}.learning-tool .modal.active{display:flex}.learning-tool .modal-content{background:var(--surface);border-radius:20px;padding:40px;max-width:640px;width:90%;max-height:80vh;overflow-y:auto;box-shadow:0 28px 70px rgba(15,23,42,0.35);position:relative}.learning-tool .modal-close{position:absolute;top:18px;right:24px;font-size:26px;color:var(--text);cursor:pointer}.learning-tool .modal-content h2{margin-bottom:1rem;color:var(--accent)}.learning-tool .modal-content h3{margin-top:1.5rem;margin-bottom:0.75rem;color:var(--text-strong);font-size:1.1rem}.learning-tool .modal-content p{margin-bottom:0.85rem;color:var(--text);line-height:1.6}@media (max-width:900px){.learning-tool{padding:28px}.learning-tool .controls{padding:24px}.learning-tool .grid-selector{grid-template-columns:repeat(3,85px);grid-template-rows:repeat(3,57px)}}@media (max-width:720px){.learning-tool{padding:12px;box-shadow:none}.learning-tool .results,.learning-tool .controls{padding:12px;border-radius:16px;box-shadow:none}.learning-tool .grid-selector{grid-template-columns:repeat(3,75px);grid-template-rows:repeat(3,50px)}.learning-tool .color-btn{width:70px;height:70px}.learning-tool .flag-grid{grid-template-columns:repeat(2,1fr);gap:12px}.learning-tool .flag-item{padding:10px}}@media (max-width:520px){.learning-tool{padding:8px}.learning-tool .controls,.learning-tool .results{padding:10px}.learning-tool .color-selector{column-gap:18px;row-gap:42px}.learning-tool .grid-selector{grid-template-columns:repeat(3,65px);grid-template-rows:repeat(3,44px);gap:6px}.learning-tool .flag-grid{grid-template-columns:repeat(2,1fr);gap:10px}.learning-tool .flag-item{padding:8px}}@media (max-width:345px){.learning-tool h1{font-size:1.6rem}}