:root{--primary: #1a73e8;--primary-dark: #1557b0;--bg: #f8f9fa;--surface: #ffffff;--text: #202124;--text-secondary: #5f6368;--border: #dadce0;--correct: #34a853;--wrong: #ea4335;--highlight: #e8f0fe;--black-cell: #333;--cell-size: clamp(28px, 5vw, 48px);--radius: 8px;--shadow: 0 2px 8px rgba(0,0,0,.08)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Vazirmatn,sans-serif;background:var(--bg);color:var(--text);direction:rtl;min-height:100vh}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.app{min-height:100vh;display:flex;flex-direction:column}.header{background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100;direction:rtl}.header-content{max-width:1200px;margin:0 auto;padding:12px 24px;display:flex;justify-content:space-between;align-items:center}.logo{font-size:1.3rem;font-weight:900;color:var(--primary)}.nav{display:flex;gap:20px}.nav a{color:var(--text-secondary);font-weight:500;font-size:.95rem}.main{flex:1;max-width:1200px;margin:0 auto;padding:24px;width:100%}.input,.select{padding:10px 16px;border:2px solid var(--border);border-radius:var(--radius);font-size:1rem;font-family:Vazirmatn,sans-serif;direction:rtl;outline:none;transition:border-color .2s;width:100%}.input:focus,.select:focus{border-color:var(--primary)}.btn{padding:10px 24px;border:2px solid transparent;border-radius:var(--radius);font-size:1rem;font-family:Vazirmatn,sans-serif;font-weight:500;cursor:pointer;transition:all .2s;display:inline-flex;align-items:center;gap:8px}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-dark)}.btn-secondary{background:var(--highlight);color:var(--primary);border-color:var(--primary)}.btn-secondary:hover:not(:disabled){background:var(--primary);color:#fff}.btn-outline{background:transparent;color:var(--text-secondary);border-color:var(--border)}.btn-outline:hover{border-color:var(--text);color:var(--text)}.btn-danger{background:var(--wrong);color:#fff}.btn-danger:hover{background:#d93025}.btn-sm{padding:4px 12px;font-size:.85rem}.btn-full{width:100%;justify-content:center}.error{color:var(--wrong);font-weight:500;margin-top:8px}.loading{color:var(--text-secondary);text-align:center;padding:40px}.empty{color:var(--text-secondary);text-align:center;padding:40px;font-size:1.1rem}.loading-screen{display:flex;justify-content:center;align-items:center;min-height:300px;color:var(--text-secondary);font-size:1.2rem}.error-screen{display:flex;justify-content:center;align-items:center;min-height:300px;color:var(--wrong);font-size:1.2rem}.home-page{direction:rtl}.hero{text-align:center;padding:40px 0}.hero h1{font-size:2rem;margin-bottom:8px;font-weight:900}.hero p{color:var(--text-secondary);margin-bottom:32px;font-size:1.1rem}.generate-form{display:flex;gap:12px;max-width:700px;margin:0 auto;flex-wrap:wrap;justify-content:center}.generate-form .input{flex:1;min-width:250px}.generate-form .select{width:auto;min-width:100px}.crosswords-list{margin-top:40px}.crosswords-list h2{margin-bottom:20px;font-size:1.4rem}.crossword-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}.crossword-card{background:var(--surface);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s;display:block;color:var(--text)}.crossword-card:hover{transform:translateY(-2px);box-shadow:0 4px 16px #0000001f;text-decoration:none}.crossword-card h3{font-size:1.15rem;margin-bottom:12px}.card-meta{display:flex;gap:16px;color:var(--text-secondary);font-size:.85rem;margin-bottom:8px;flex-wrap:wrap}.card-stats{display:flex;gap:16px;font-size:.85rem;color:var(--text-secondary)}.crossword-game{direction:rtl;outline:none}.game-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:24px;flex-wrap:wrap;gap:12px}.game-header h1{font-size:1.5rem}.topic{color:var(--text-secondary);font-size:.9rem}.game-info{display:flex;gap:20px;align-items:center}.timer{font-size:1.3rem;font-weight:700;font-variant-numeric:tabular-nums;direction:ltr}.score{font-size:1.1rem;font-weight:700;color:var(--correct)}.game-main{display:flex;gap:24px;align-items:flex-start}.grid-container{flex-shrink:0;direction:ltr}.crossword-grid{display:grid;gap:1px;background:var(--border);border:2px solid var(--text);border-radius:4px;overflow:hidden;direction:ltr}.cell{width:var(--cell-size);height:var(--cell-size);background:var(--surface);display:flex;align-items:center;justify-content:center;cursor:pointer;position:relative;font-size:calc(var(--cell-size) * .5);font-weight:700;-webkit-user-select:none;user-select:none;transition:background .15s}.cell.black{background:var(--black-cell);cursor:default}.cell.highlighted{background:var(--highlight)}.cell.selected{background:#c6dafc;box-shadow:inset 0 0 0 2px var(--primary)}.cell.wrong{background:#fce8e6}.cell.correct{background:#e6f4ea}.cell-number{position:absolute;top:1px;left:3px;font-size:calc(var(--cell-size) * .25);font-weight:700;color:var(--text);line-height:1;direction:ltr}.cell-letter{font-size:calc(var(--cell-size) * .5);font-weight:700;line-height:1}.cell-letter.answer{color:var(--correct)}.clues-panel{flex:1;min-width:280px}.current-clue{background:var(--surface);border:2px solid var(--primary);border-radius:var(--radius);padding:16px;margin-bottom:16px;text-align:center}.clue-number{font-size:1rem;font-weight:700}.clue-text{font-size:1.2rem;margin:8px 0;line-height:1.6}.clue-answer-length{color:var(--text-secondary);font-size:.85rem}.clues-list{background:var(--surface);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow);max-height:500px;overflow-y:auto}.clue-group{margin-bottom:16px}.clue-group:last-child{margin-bottom:0}.clue-group h3{font-size:.95rem;color:var(--text-secondary);margin-bottom:8px;padding-bottom:4px;border-bottom:1px solid var(--border)}.clue-item{padding:6px 8px;cursor:pointer;border-radius:4px;font-size:.9rem;line-height:1.6;display:flex;gap:6px;transition:background .15s}.clue-item:hover{background:var(--highlight)}.clue-item.active{background:var(--highlight);font-weight:700}.game-controls{display:flex;gap:12px;margin-top:24px;flex-wrap:wrap;justify-content:center}.completion-modal{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:flex;justify-content:center;align-items:center;z-index:1000}.completion-content{background:var(--surface);border-radius:var(--radius);padding:40px;text-align:center;max-width:400px;width:90%;box-shadow:0 8px 32px #0003}.completion-content h2{font-size:1.8rem;margin-bottom:12px}.completion-stats{margin:24px 0;display:flex;flex-direction:column;gap:8px;font-size:1.1rem}.admin-login{display:flex;justify-content:center;align-items:center;min-height:60vh}.login-card{background:var(--surface);border-radius:var(--radius);padding:40px;box-shadow:var(--shadow);width:100%;max-width:400px}.login-card h1{text-align:center;margin-bottom:24px;font-size:1.4rem}.form-group{margin-bottom:16px}.form-group label{display:block;margin-bottom:6px;font-weight:500;font-size:.9rem}.admin-dashboard{direction:rtl}.admin-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.tabs{display:flex;gap:4px;margin-bottom:24px;background:var(--surface);border-radius:var(--radius);padding:4px;box-shadow:var(--shadow)}.tab{padding:10px 20px;border:none;background:transparent;cursor:pointer;font-family:Vazirmatn,sans-serif;font-size:.95rem;border-radius:6px;transition:all .2s;color:var(--text-secondary)}.tab.active{background:var(--primary);color:#fff}.stats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:16px}.stat-card{background:var(--surface);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);text-align:center}.stat-card.wide{grid-column:1 / -1;text-align:right}.stat-card h3{margin-bottom:16px;font-size:1rem}.stat-value{font-size:2rem;font-weight:900;color:var(--primary)}.stat-label{color:var(--text-secondary);font-size:.85rem;margin-top:4px}table{width:100%;border-collapse:collapse;font-size:.9rem}th,td{padding:10px 12px;text-align:right;border-bottom:1px solid var(--border)}th{font-weight:700;color:var(--text-secondary);font-size:.85rem}.stats-table th,.stats-table td{text-align:center}.data-table{background:var(--surface);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}.crosswords-table-container,.sessions-table-container{overflow-x:auto}@media (max-width: 768px){.game-main{flex-direction:column;align-items:center}.clues-panel{width:100%;min-width:unset}.generate-form{flex-direction:column;align-items:stretch}.generate-form .select{width:100%}.header-content{flex-direction:column;gap:8px}.stats-grid{grid-template-columns:repeat(2,1fr)}:root{--cell-size: clamp(24px, 8vw, 40px)}}