:root{--color-brand: #18E299;--color-brand-muted: rgba(24, 226, 153, .1);--color-brand-deep: #0fa76e;--color-primary: #0d0d0d;--color-primary-light: #333333;--color-primary-dark: #000000;--color-primary-muted: rgba(24, 226, 153, .1);--color-bg: #ffffff;--color-surface: #ffffff;--color-surface-raised: #fafafa;--color-surface-elevated: #f5f5f5;--color-text: #0d0d0d;--color-text-muted: #666666;--color-border: rgba(0, 0, 0, .07);--color-border-light: rgba(0, 0, 0, .04);--color-border-medium: rgba(0, 0, 0, .1);--color-success: #0fa76e;--color-success-bg: #d4fae8;--color-warning: #c37d0d;--color-warning-bg: #fef3c7;--color-danger: #d45656;--color-danger-bg: #fce8e8;--color-info: #3772cf;--color-info-bg: #e8f0fe;--sidebar-width: clamp(200px, 16vw, 300px);--sidebar-collapsed-width: clamp(52px, 4vw, 68px);--header-height: 60px;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 16px;--radius-xl: 24px;--radius-full: 9999px;--shadow-sm: rgba(0, 0, 0, .03) 0px 2px 4px;--shadow-md: rgba(0, 0, 0, .06) 0px 4px 12px;--shadow-lg: rgba(0, 0, 0, .08) 0px 8px 24px;--font-arabic: "Noto Naskh Arabic", "Traditional Arabic", serif;--font-ui: "Inter", "Inter Fallback", system-ui, -apple-system, sans-serif;--font-mono: "Geist Mono", ui-monospace, SFMono-Regular, "Courier New", monospace;--transition: .15s ease;--transition-slow: .3s ease}[data-theme=dark]{--color-bg: #0d0d0d;--color-surface: #141414;--color-surface-raised: #1a1a1a;--color-surface-elevated: #1f1f1f;--color-text: #ededed;--color-text-muted: #a0a0a0;--color-border: rgba(255, 255, 255, .08);--color-border-light: rgba(255, 255, 255, .05);--color-border-medium: rgba(255, 255, 255, .12);--color-primary: #ededed;--color-primary-light: #ffffff;--color-primary-dark: #a0a0a0;--color-primary-muted: rgba(24, 226, 153, .12);--color-success: #18E299;--color-success-bg: rgba(24, 226, 153, .12);--color-warning: #e0a030;--color-warning-bg: rgba(224, 160, 48, .12);--color-danger: #e06060;--color-danger-bg: rgba(224, 96, 96, .12);--color-info: #5a9fd4;--color-info-bg: rgba(90, 159, 212, .12);--shadow-sm: rgba(0, 0, 0, .4) 0px 2px 4px;--shadow-md: rgba(0, 0, 0, .5) 0px 4px 12px;--shadow-lg: rgba(0, 0, 0, .6) 0px 8px 24px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth}body{font-family:var(--font-ui);background-color:var(--color-bg);color:var(--color-text);line-height:1.6;min-height:100vh;-webkit-font-smoothing:antialiased}a{color:var(--color-text);text-decoration:none;transition:color var(--transition)}a:hover{color:var(--color-brand);text-decoration:none}img{max-width:100%}.arabic{direction:rtl;font-family:var(--font-arabic);unicode-bidi:isolate}.arabic-inline{direction:rtl;font-family:var(--font-arabic);display:inline;unicode-bidi:isolate}.app-layout{display:flex;min-height:100vh}.main-content{margin-left:var(--sidebar-width);flex:1;min-height:100vh;background-color:var(--color-bg);overflow-x:hidden;transition:margin-left .25s ease}.sidebar-collapsed .main-content{margin-left:var(--sidebar-collapsed-width)}.page-container{padding:32px;max-width:1400px}.sidebar-collapsed .page-container{max-width:1600px}.page-header{margin-bottom:28px}.page-title{font-size:1.75rem;font-weight:600;color:var(--color-text);margin-bottom:4px;letter-spacing:-.4px}.page-subtitle{color:var(--color-text-muted);font-size:.95rem}.sidebar{position:fixed;left:0;top:0;bottom:0;width:var(--sidebar-width);background-color:var(--color-surface);border-right:1px solid var(--color-border);display:flex;flex-direction:column;z-index:100;transition:width .25s ease;-webkit-user-select:none;user-select:none;overflow:hidden}.sidebar-logo-title{font-size:clamp(.95rem,1vw,1.15rem);font-weight:600;color:var(--color-text);letter-spacing:-.3px}.sidebar-logo-arabic{font-family:var(--font-arabic);font-size:clamp(.82rem,.85vw,1rem);color:var(--color-brand);display:block;direction:rtl}.sidebar-nav{flex:1;padding:clamp(6px,.6vw,10px) clamp(8px,.8vw,12px);display:flex;flex-direction:column;gap:1px;overflow:hidden}.sidebar-divider{height:1px;background:var(--color-border);margin:clamp(3px,.4vw,6px) clamp(8px,.8vw,12px)}.sidebar-nav-item{display:flex;align-items:center;gap:clamp(8px,.7vw,12px);padding:clamp(6px,.55vw,9px) clamp(10px,.9vw,14px);border-radius:var(--radius-md);color:var(--color-text-muted);font-size:clamp(.78rem,.8vw,.9rem);font-weight:500;cursor:pointer;text-decoration:none;transition:background var(--transition),color var(--transition),padding .25s ease,gap .25s ease;border:none;background:none;width:100%;text-align:left}.sidebar-nav-item:hover{background-color:var(--color-brand-muted);color:var(--color-brand-deep);text-decoration:none}.sidebar-nav-item.active{background-color:var(--color-brand-muted);color:var(--color-brand-deep);font-weight:600}[data-theme=dark] .sidebar-nav-item:hover,[data-theme=dark] .sidebar-nav-item.active{color:var(--color-brand)}.sidebar-nav-item .nav-icon{width:clamp(15px,1.2vw,20px);height:clamp(15px,1.2vw,20px);flex-shrink:0;display:block}.sidebar-footer{padding:clamp(6px,.6vw,10px) clamp(8px,.8vw,12px);border-top:1px solid var(--color-border)}.sidebar-user{display:flex;align-items:center;gap:clamp(8px,.7vw,12px);padding:clamp(5px,.5vw,8px) clamp(10px,.9vw,14px);margin-bottom:4px}.sidebar-user-avatar{width:clamp(26px,2vw,34px);height:clamp(26px,2vw,34px);border-radius:50%;background:var(--color-text);color:var(--color-bg);display:flex;align-items:center;justify-content:center;font-weight:600;font-size:clamp(.72rem,.75vw,.88rem);flex-shrink:0}[data-theme=dark] .sidebar-user-avatar{background:var(--color-brand);color:#0d0d0d}.sidebar-user-name{font-size:clamp(.78rem,.8vw,.9rem);font-weight:500;color:var(--color-text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sidebar-logout-btn{display:flex;align-items:center;gap:clamp(6px,.6vw,10px);width:100%;padding:clamp(5px,.5vw,8px) clamp(10px,.9vw,14px);border:none;background:none;color:var(--color-text-muted);font-size:clamp(.78rem,.8vw,.9rem);font-weight:500;cursor:pointer;border-radius:var(--radius-md);transition:background var(--transition),color var(--transition);text-align:left;font-family:inherit}.sidebar-logout-btn:hover{background-color:var(--color-danger-bg);color:var(--color-danger)}.sidebar.sidebar-collapsed{width:var(--sidebar-collapsed-width)}.sidebar-logo-text,.nav-label,.sidebar-user-name{max-width:200px;overflow:hidden;white-space:nowrap;opacity:1;transition:max-width .25s ease,opacity .15s ease .12s}.sidebar.sidebar-collapsed .sidebar-logo-text,.sidebar.sidebar-collapsed .nav-label,.sidebar.sidebar-collapsed .sidebar-user-name{max-width:0;opacity:0;transition:max-width .25s ease,opacity .1s ease 0s;pointer-events:none}.sidebar-logo{display:flex;align-items:center;justify-content:space-between;padding:clamp(10px,.9vw,16px) clamp(10px,.9vw,14px);border-bottom:1px solid var(--color-border);gap:8px}.sidebar.sidebar-collapsed .sidebar-logo{justify-content:center;padding:clamp(10px,.9vw,16px) 0}.sidebar-toggle-btn{display:flex;align-items:center;justify-content:center;width:26px;height:26px;border:1px solid var(--color-border);border-radius:var(--radius);background:none;color:var(--color-text-muted);cursor:pointer;flex-shrink:0;transition:background var(--transition),color var(--transition),border-color var(--transition)}.sidebar-toggle-btn:hover{background:var(--color-surface-elevated);color:var(--color-text);border-color:var(--color-text-muted)}.sidebar.sidebar-collapsed .sidebar-nav-item{justify-content:center;padding:clamp(6px,.55vw,9px) 0;gap:0;position:relative}.sidebar.sidebar-collapsed .sidebar-nav-item[title]:hover:after{content:attr(title);position:absolute;left:calc(100% + 10px);top:50%;transform:translateY(-50%);background:var(--color-text);color:var(--color-bg);padding:5px 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28px;font-size:.95rem;font-weight:500}.btn-primary{background:var(--color-text);color:var(--color-bg);border-color:var(--color-text)}.btn-primary:hover{background:var(--color-text);border-color:var(--color-text);color:var(--color-bg);opacity:.85}.btn-secondary{background:var(--color-surface);color:var(--color-text);border-color:var(--color-border-medium);box-shadow:#0000000f 0 1px 2px}.btn-secondary:hover{border-color:var(--color-text);opacity:1}.btn-danger{background:var(--color-danger);color:#fff;border-color:var(--color-danger)}.btn-danger:hover{background:var(--color-danger);border-color:var(--color-danger);color:#fff;opacity:.85}.btn-outline-danger{background:transparent;color:var(--color-danger);border-color:var(--color-danger);opacity:.75}.btn-outline-danger:hover{background:var(--color-danger);color:#fff;opacity:1}.btn-ghost{background:transparent;color:var(--color-text-muted);border-color:transparent;box-shadow:none}.btn-ghost:hover{background:var(--color-brand-muted);color:var(--color-brand-deep);opacity:1}[data-theme=dark] .btn-ghost:hover{color:var(--color-brand)}.btn-success{background:var(--color-brand);color:#0d0d0d;border-color:var(--color-brand);font-weight:600}.btn-success:hover{opacity:.85}.btn:disabled{opacity:.4;cursor:not-allowed}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-sm)}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.card-title{font-size:1rem;font-weight:600;color:var(--color-text);letter-spacing:-.1px}.card-subtitle{font-size:.85rem;color:var(--color-text-muted);margin-top:2px}.metric-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin-bottom:24px}.stats-charts-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}@media (max-width: 900px){.stats-charts-grid{grid-template-columns:1fr}}.metric-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:20px;text-align:center;box-shadow:var(--shadow-sm);transition:border-color var(--transition)}.metric-card:hover{border-color:var(--color-border-medium)}.metric-value{font-size:2rem;font-weight:600;color:var(--color-text);line-height:1;margin-bottom:6px;letter-spacing:-.8px}.metric-label{font-size:.75rem;color:var(--color-text-muted);font-weight:500;text-transform:uppercase;letter-spacing:.065em;font-family:var(--font-mono)}.form-group{margin-bottom:18px}.form-label{display:block;font-size:.85rem;font-weight:500;color:var(--color-text);margin-bottom:6px}.form-input,.form-select{width:100%;padding:9px 16px;border:1px solid var(--color-border-medium);border-radius:var(--radius-full);background:var(--color-surface);color:var(--color-text);font-size:.9rem;font-family:var(--font-ui);transition:border-color var(--transition),box-shadow var(--transition);outline:none}.form-textarea{width:100%;padding:10px 16px;border:1px solid var(--color-border-medium);border-radius:var(--radius-lg);background:var(--color-surface);color:var(--color-text);font-size:.9rem;font-family:var(--font-ui);transition:border-color var(--transition),box-shadow var(--transition);outline:none;resize:vertical;min-height:80px}.form-input:focus,.form-select:focus,.form-textarea:focus{border-color:var(--color-brand);box-shadow:0 0 0 2px #18e29926}.form-input::placeholder{color:#888}.form-input.arabic-input{direction:rtl;font-family:var(--font-arabic);font-size:1.1rem}.form-error{color:var(--color-danger);font-size:.8rem;margin-top:4px}.form-hint{color:var(--color-text-muted);font-size:.8rem;margin-top:4px}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--color-bg);padding:20px}.auth-container{width:100%;max-width:400px}.auth-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:36px;box-shadow:var(--shadow-md)}.auth-logo{text-align:center;margin-bottom:28px}.auth-logo-title{font-size:1.5rem;font-weight:600;color:var(--color-text);letter-spacing:-.4px}.auth-logo-arabic{font-family:var(--font-arabic);font-size:1.1rem;color:var(--color-brand);display:block;direction:rtl;margin-top:4px}.auth-title{font-size:1.25rem;font-weight:600;margin-bottom:6px;color:var(--color-text);letter-spacing:-.3px}.auth-subtitle{color:var(--color-text-muted);font-size:.9rem;margin-bottom:24px}.auth-footer{text-align:center;margin-top:20px;font-size:.875rem;color:var(--color-text-muted)}.flashcard-scene{perspective:1000px;width:100%;max-width:600px;height:360px;margin:0 auto 28px;cursor:pointer;outline:none}.flashcard{width:100%;height:100%;position:relative;transform-style:preserve-3d;transition:transform .4s cubic-bezier(.4,0,.2,1);border-radius:var(--radius-xl);will-change:transform}.flashcard.flipped{transform:rotateY(180deg)}.flashcard-face{position:absolute;width:100%;height:100%;backface-visibility:hidden;-webkit-backface-visibility:hidden;border-radius:var(--radius-xl);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:32px;border:1px solid var(--color-border);box-shadow:var(--shadow-md)}.flashcard-front{background:var(--color-surface);border-top:3px solid var(--color-brand)}.flashcard-back{background:var(--color-brand-muted);transform:rotateY(180deg) translateZ(1px);color:var(--color-text);border-top:3px solid var(--color-brand)}.flashcard-arabic{font-family:var(--font-arabic);font-size:3rem;direction:rtl;text-align:center;color:var(--color-text);font-weight:600;line-height:1.4;margin-bottom:12px}.flashcard-hint{font-size:.8rem;color:var(--color-text-muted);text-align:center}.forms-btn{display:inline-block;margin:6px 0 10px;padding:4px 14px;font-size:.75rem;font-weight:600;border:1.5px solid var(--color-border);border-radius:var(--radius-full);background:var(--color-surface);color:var(--color-text-muted);cursor:pointer;transition:border-color .15s,color .15s}.forms-btn:hover{border-color:var(--color-brand);color:var(--color-brand)}.forms-panel{width:100%;margin:0 0 10px;border:1px solid var(--color-border);border-radius:var(--radius-md);overflow:hidden;font-size:.82rem}.forms-row{display:flex;justify-content:space-between;align-items:center;padding:5px 12px;border-bottom:1px solid var(--color-border)}.forms-row:last-child{border-bottom:none}.forms-row>span:first-child{color:var(--color-text-muted);font-size:.78rem}.forms-row>span.arabic{font-size:1rem;direction:rtl;color:var(--color-text)}.flashcard-back .flashcard-english{font-size:1.5rem;font-weight:600;margin-bottom:12px;text-align:center;color:var(--color-brand-deep)}.flashcard-back .flashcard-root{font-family:var(--font-arabic);font-size:1.1rem;direction:rtl;color:var(--color-text-muted);margin-bottom:6px}.flashcard-back .flashcard-pos{font-size:.78rem;font-family:var(--font-mono);font-weight:500;letter-spacing:.06em;text-transform:uppercase;color:var(--color-brand-deep);background:var(--color-brand-muted);padding:3px 10px;border-radius:var(--radius-full);margin-bottom:12px}.flashcard-back .flashcard-example{font-family:var(--font-arabic);font-size:1rem;direction:rtl;text-align:center;color:var(--color-text-muted);font-style:italic}.rating-buttons{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;width:100%;max-width:600px;margin:0 auto}.session-setup{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-xl);box-shadow:var(--shadow-md);padding:48px 44px;max-width:580px;width:100%;margin:0 auto}.session-setup h2{font-size:1.4rem;font-weight:600;margin-bottom:8px;color:var(--color-text);letter-spacing:-.3px}.session-setup .setup-subtitle{color:var(--color-text-muted);font-size:.9rem;margin-bottom:28px}.session-setup .setup-row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}.session-setup .setup-row label{font-size:.875rem;font-weight:500;color:var(--color-text);white-space:nowrap;min-width:90px}.session-setup .setup-row select{flex:1}.mode-toggle{display:flex;gap:6px;flex:1}.mode-toggle button{flex:1;padding:7px 12px;border:1px solid var(--color-border-medium);border-radius:var(--radius-full);background:var(--color-surface);color:var(--color-text-muted);font-size:.82rem;font-weight:500;cursor:pointer;transition:all .15s;font-family:var(--font-ui)}.mode-toggle button.active{border-color:var(--color-brand);background:var(--color-brand-muted);color:var(--color-brand-deep)}[data-theme=dark] .mode-toggle button.active{color:var(--color-brand)}.setup-start-btn{width:100%;margin-top:24px;padding:12px;font-size:.95rem}.rating-btn{padding:12px 8px;border:1px solid var(--color-border-medium);border-radius:var(--radius-lg);font-size:.85rem;font-weight:600;cursor:pointer;transition:transform var(--transition),opacity var(--transition);display:flex;flex-direction:column;align-items:center;gap:3px;font-family:var(--font-ui)}.rating-btn:hover{transform:translateY(-2px);opacity:.9}.rating-btn .rating-label{font-size:.9rem}.rating-btn .rating-interval{font-size:.72rem;font-family:var(--font-mono);opacity:.75}.rating-btn.again{background:var(--color-danger-bg);color:var(--color-danger);border-color:#d4565633}.rating-btn.hard{background:var(--color-warning-bg);color:var(--color-warning);border-color:#c37d0d33}.rating-btn.good{background:var(--color-success-bg);color:var(--color-success);border-color:#0fa76e33}.rating-btn.easy{background:var(--color-info-bg);color:var(--color-info);border-color:#3772cf33}.progress-bar-wrapper{width:100%;background:var(--color-border);border-radius:var(--radius-full);height:6px;overflow:hidden}.progress-bar-fill{height:100%;background:var(--color-brand);border-radius:var(--radius-full);transition:width .3s ease}.progress-label{font-size:.78rem;color:var(--color-text-muted);text-align:center;font-family:var(--font-mono)}.dict-results{display:flex;flex-direction:column;gap:8px;overflow-y:auto;max-height:calc(100vh - 340px);padding-right:4px}.dict-entry{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding:14px 16px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);transition:border-color .15s}.dict-entry:hover{border-color:var(--color-brand)}.dict-entry-main{flex:1;min-width:0}.dict-arabic{font-family:var(--font-arabic);font-size:1.4rem;direction:rtl;display:block;margin-bottom:4px;color:var(--color-text)}.dict-meta{display:flex;align-items:center;gap:8px;margin-bottom:4px;flex-wrap:wrap}.dict-root{font-family:var(--font-arabic);font-size:.85rem;color:var(--color-text-muted);direction:rtl;background:var(--color-surface-elevated);padding:2px 10px;border-radius:var(--radius-full);border:1px solid var(--color-border)}.dict-definition{font-size:.9rem;color:var(--color-text-muted);line-height:1.5}.dict-entry-action{flex-shrink:0;display:flex;align-items:center;gap:6px;flex-wrap:wrap;justify-content:flex-end}.dict-add-row{display:flex;align-items:center;gap:6px;flex-wrap:wrap}.table-container{overflow-x:auto;overflow-y:auto;max-height:calc(100vh - 310px);border-radius:var(--radius-lg);border:1px solid var(--color-border);box-shadow:var(--shadow-sm)}table{width:100%;border-collapse:collapse;background:var(--color-surface)}thead{background:var(--color-surface-raised);border-bottom:1px solid var(--color-border-medium)}thead th{position:sticky;top:0;z-index:1;background:var(--color-surface-raised);box-shadow:0 1px 0 var(--color-border)}th{padding:11px 14px;text-align:left;font-size:.72rem;font-weight:500;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.065em;white-space:nowrap;font-family:var(--font-mono)}td{padding:11px 14px;font-size:.9rem;color:var(--color-text);border-bottom:1px solid var(--color-border-light);vertical-align:middle}tr:last-child td{border-bottom:none}tr:hover td{background:var(--color-brand-muted)}.td-arabic{font-family:var(--font-arabic);font-size:1.2rem;direction:rtl;text-align:right}.srs-badge{display:inline-flex;align-items:center;padding:2px 10px;border-radius:var(--radius-full);font-size:.72rem;font-weight:500;font-family:var(--font-mono);letter-spacing:.04em;text-transform:uppercase}.srs-badge.new{background:var(--color-info-bg);color:var(--color-info)}.srs-badge.learning{background:var(--color-warning-bg);color:var(--color-warning)}.srs-badge.review{background:var(--color-brand-muted);color:var(--color-brand-deep)}[data-theme=dark] .srs-badge.review{color:var(--color-brand)}.srs-badge.mastered{background:var(--color-success-bg);color:var(--color-success)}.heatmap-container{margin-top:8px}.heatmap-nav{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.heatmap-nav-btn{background:none;border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-muted);font-size:1.1rem;width:30px;height:30px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background var(--transition),color var(--transition),border-color var(--transition);flex-shrink:0}.heatmap-nav-btn:hover:not(:disabled){background:var(--color-brand-muted);color:var(--color-brand-deep);border-color:var(--color-brand)}[data-theme=dark] .heatmap-nav-btn:hover:not(:disabled){color:var(--color-brand)}.heatmap-nav-btn:disabled{opacity:.3;cursor:default}.heatmap-month-info{display:flex;flex-direction:column;align-items:center;gap:2px}.heatmap-month-label{font-size:.9rem;font-weight:600;color:var(--color-text)}.heatmap-month-total{font-size:.72rem;color:var(--color-text-muted);font-family:var(--font-mono)}.heatmap-calendar{display:grid;grid-template-columns:repeat(7,1fr);gap:3px}.heatmap-dow{text-align:center;font-size:.65rem;font-weight:500;color:var(--color-text-muted);padding:4px 0;text-transform:uppercase;letter-spacing:.04em;font-family:var(--font-mono)}.heatmap-day{aspect-ratio:1;border-radius:var(--radius-sm);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;cursor:default;position:relative;transition:transform var(--transition);min-height:0}.heatmap-day:hover{transform:scale(1.08);z-index:1}.heatmap-day-empty{pointer-events:none}.heatmap-day.future{opacity:.35}.heatmap-day.today{outline:2px solid var(--color-brand);outline-offset:1px}.heatmap-day[data-level="0"]{background:var(--color-border-light)}.heatmap-day[data-level="1"]{background:#18e2992e}.heatmap-day[data-level="2"]{background:#18e29966}.heatmap-day[data-level="3"]{background:#18e299b3}.heatmap-day[data-level="4"]{background:var(--color-brand)}.heatmap-day-num{font-size:.68rem;font-weight:600;line-height:1;color:var(--color-text)}.heatmap-day[data-level="3"] .heatmap-day-num,.heatmap-day[data-level="4"] .heatmap-day-num{color:#0d0d0d}.heatmap-day-count{font-size:.56rem;line-height:1;opacity:.8;color:var(--color-text-muted)}.heatmap-day[data-level="3"] .heatmap-day-count,.heatmap-day[data-level="4"] .heatmap-day-count{color:#0009}.heatmap-legend{display:flex;align-items:center;gap:5px;margin-top:10px;font-size:.72rem;color:var(--color-text-muted);font-family:var(--font-mono)}.heatmap-legend-cell{width:12px;height:12px;border-radius:3px;flex-shrink:0}.heatmap-legend-cell[data-level="0"]{background:var(--color-border)}.heatmap-legend-cell[data-level="1"]{background:#18e2992e}.heatmap-legend-cell[data-level="2"]{background:#18e29966}.heatmap-legend-cell[data-level="3"]{background:#18e299b3}.heatmap-legend-cell[data-level="4"]{background:var(--color-brand)}.games-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}.game-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:28px 24px;display:flex;flex-direction:column;align-items:flex-start;box-shadow:var(--shadow-sm);transition:border-color var(--transition),box-shadow var(--transition)}.game-card:hover{border-color:var(--color-border-medium);box-shadow:var(--shadow-md)}.game-card.game-card-soon{opacity:.45;pointer-events:none}.game-card-icon{font-size:2rem;margin-bottom:12px}.game-card-title{font-size:1rem;font-weight:600;margin-bottom:8px;color:var(--color-text);letter-spacing:-.1px}.game-card-desc{font-size:.875rem;color:var(--color-text-muted);line-height:1.55;flex:1;margin-bottom:20px}.game-card-btn{align-self:stretch;text-align:center}.game-card-soon-badge{font-size:.72rem;font-weight:500;background:var(--color-surface-elevated);color:var(--color-text-muted);border-radius:var(--radius-full);padding:3px 12px;font-family:var(--font-mono);letter-spacing:.04em;text-transform:uppercase}.memory-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.memory-stats{display:flex;gap:20px}.memory-stat{font-size:.9rem;color:var(--color-text-muted)}.memory-stat-val{font-size:1rem;font-weight:600;color:var(--color-text)}.memory-board{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;max-width:600px;margin:0 auto}.memory-card{aspect-ratio:1;perspective:800px;cursor:pointer;outline:none}.memory-card-inner{width:100%;height:100%;position:relative;transform-style:preserve-3d;transition:transform .35s cubic-bezier(.4,0,.2,1);border-radius:var(--radius-md)}.memory-card.face-up .memory-card-inner{transform:rotateY(180deg)}.memory-card-front,.memory-card-back{position:absolute;top:0;right:0;bottom:0;left:0;border-radius:var(--radius-md);backface-visibility:hidden;-webkit-backface-visibility:hidden;display:flex;align-items:center;justify-content:center;padding:8px;text-align:center;overflow:hidden}.memory-card-front{background:#0d0d0d;box-shadow:var(--shadow-sm)}[data-theme=dark] .memory-card-front{background:#2a2a2a}.memory-card-symbol{font-family:var(--font-arabic);font-size:1.6rem;color:#fff3;-webkit-user-select:none;user-select:none}.memory-card-back{background:var(--color-surface);border:1px solid var(--color-border);transform:rotateY(180deg) translateZ(1px);font-size:.78rem;font-weight:500;color:var(--color-text);line-height:1.3;word-break:break-word;box-shadow:var(--shadow-sm)}.memory-card-back.arabic{font-family:var(--font-arabic);font-size:1.25rem;direction:rtl}.memory-card:not(.face-up):not(.matched):hover .memory-card-inner{transform:rotateY(10deg)}.memory-card.matched .memory-card-back{background:var(--color-success-bg);border-color:#0fa76e4d;color:var(--color-success)}.mc-question-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:36px 24px 28px;text-align:center;margin-bottom:20px;box-shadow:var(--shadow-sm)}.mc-arabic{font-family:var(--font-arabic);font-size:2.4rem;direction:rtl;color:var(--color-text);margin-bottom:12px;line-height:1.3}.mc-pos-badge{display:inline-block;background:var(--color-brand-muted);color:var(--color-brand-deep);font-size:.72rem;font-weight:500;font-family:var(--font-mono);letter-spacing:.06em;text-transform:uppercase;padding:3px 12px;border-radius:var(--radius-full);margin-bottom:8px}[data-theme=dark] .mc-pos-badge{color:var(--color-brand)}.mc-root{font-size:.82rem;color:var(--color-text-muted);margin-top:4px}.mc-options{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:8px}.mc-option{display:flex;align-items:center;gap:10px;padding:14px 16px;background:var(--color-surface);border:1px solid var(--color-border-medium);border-radius:var(--radius-lg);cursor:pointer;text-align:left;font-size:.88rem;font-weight:500;color:var(--color-text);transition:border-color var(--transition),background var(--transition),opacity var(--transition);min-height:56px;font-family:var(--font-ui)}.mc-option:hover:not(:disabled){border-color:var(--color-brand);background:var(--color-brand-muted)}.mc-option:disabled{cursor:default}.mc-option.correct{border-color:var(--color-success);background:var(--color-success-bg);color:var(--color-success)}.mc-option.wrong{border-color:var(--color-danger);background:var(--color-danger-bg);color:var(--color-danger)}.mc-option.dimmed{opacity:.35}.mc-option-key{width:22px;height:22px;border-radius:var(--radius-sm);background:var(--color-surface-elevated);color:var(--color-text-muted);font-size:.68rem;font-weight:600;font-family:var(--font-mono);display:flex;align-items:center;justify-content:center;flex-shrink:0}.mc-option.correct .mc-option-key,.mc-option.wrong .mc-option-key{background:currentColor;color:#fff;opacity:.7}.mc-option-text{flex:1;line-height:1.35}.mc-icon{font-size:1rem;flex-shrink:0;font-weight:700}.mc-grade{font-size:3.5rem;font-weight:600;line-height:1;margin-bottom:8px;letter-spacing:-1.4px}.onboarding-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-xl);box-shadow:var(--shadow-md);overflow:hidden;max-width:640px;margin:0 auto}.onboarding-header{background:#0d0d0d;padding:36px 32px 28px;text-align:center}[data-theme=dark] .onboarding-header{background:#1a1a1a;border-bottom:1px solid var(--color-border)}.onboarding-icon{font-size:2.5rem;margin-bottom:12px}.onboarding-title{font-size:1.4rem;font-weight:600;color:#fff;margin-bottom:8px;letter-spacing:-.3px}.onboarding-subtitle{font-size:.9rem;color:#ffffffa6;line-height:1.5;max-width:420px;margin:0 auto}.onboarding-steps{padding:8px 0}.onboarding-step{display:flex;gap:16px;padding:20px 28px;border-bottom:1px solid var(--color-border-light);opacity:.5}.onboarding-step:last-child{border-bottom:none}.onboarding-step.onboarding-step-active{opacity:1;background:var(--color-brand-muted)}.onboarding-step-num{width:26px;height:26px;border-radius:50%;background:var(--color-text);color:var(--color-bg);font-size:.78rem;font-weight:600;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:2px}.onboarding-step:not(.onboarding-step-active) .onboarding-step-num{background:var(--color-surface-elevated);color:var(--color-text-muted)}.onboarding-step-title{font-size:.95rem;font-weight:600;color:var(--color-text);margin-bottom:4px}.onboarding-step-desc{font-size:.85rem;color:var(--color-text-muted);line-height:1.5}.onboarding-footer{padding:16px 28px;font-size:.82rem;color:var(--color-text-muted);text-align:center;border-top:1px solid var(--color-border-light);background:var(--color-surface-raised)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal{background:var(--color-surface);border-radius:var(--radius-xl);padding:28px;width:100%;max-width:520px;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-lg);border:1px solid var(--color-border)}.modal-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.modal-title{font-size:1.05rem;font-weight:600;letter-spacing:-.1px}.modal-close{background:none;border:none;cursor:pointer;color:var(--color-text-muted);font-size:1.2rem;padding:4px 8px;border-radius:var(--radius-md);transition:color var(--transition),background var(--transition)}.modal-close:hover{color:var(--color-text);background:var(--color-surface-elevated)}.modal-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:20px}.search-filter-bar{display:flex;gap:10px;margin-bottom:18px;flex-wrap:wrap}.search-input-wrapper{flex:1;min-width:200px;position:relative}.search-icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--color-text-muted);display:flex;align-items:center}.search-input-wrapper .form-input{padding-left:38px}.arabic-keyboard{display:flex;flex-wrap:wrap;gap:6px;padding:12px 16px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);margin-bottom:20px;direction:rtl}.arabic-key{width:40px;height:40px;border:1px solid var(--color-border-medium);border-radius:var(--radius-md);background:var(--color-surface-raised);font-family:var(--font-arabic);font-size:1.2rem;cursor:pointer;transition:background .12s,color .12s,border-color .12s;display:flex;align-items:center;justify-content:center;padding:0;color:var(--color-text)}.arabic-key:hover{background:#0d0d0d;color:#fff;border-color:#0d0d0d}[data-theme=dark] .arabic-key:hover{background:var(--color-brand);color:#0d0d0d;border-color:var(--color-brand)}.arabic-key-backspace{font-family:var(--font-ui);font-size:.9rem;width:auto;padding:0 14px;color:var(--color-danger);border-color:#d4565640;direction:ltr}.arabic-key-backspace:hover{background:var(--color-danger);color:#fff;border-color:var(--color-danger)}.arabic-keyboard-divider{width:100%;height:1px;background:var(--color-border);margin:2px 0}.arabic-key-harakat{background:var(--color-brand-muted);border-color:#0fa76e4d;font-size:1.8rem;width:52px;height:52px}.arabic-key-harakat:hover{background:var(--color-brand-deep);color:#fff;border-color:var(--color-brand-deep)}[data-theme=dark] .arabic-key-harakat:hover{background:var(--color-brand);color:#0d0d0d;border-color:var(--color-brand)}.sentence-composer{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:16px;margin-bottom:20px}.sentence-composer-input{width:100%;background:var(--color-surface-raised);border:1px solid var(--color-border-medium);border-radius:var(--radius-md);padding:12px 14px;font-family:var(--font-arabic);font-size:1.35rem;direction:rtl;color:var(--color-text);resize:none;outline:none;line-height:1.7;transition:border-color .15s;box-sizing:border-box}.sentence-composer-input:focus{border-color:var(--color-brand)}.sentence-composer-input::placeholder{color:var(--color-text-muted);font-size:1.1rem}.sentence-suggestions{position:absolute;top:100%;left:0;right:0;z-index:50;background:var(--color-surface);border:1px solid var(--color-border-medium);border-radius:var(--radius-md);box-shadow:var(--shadow-md);overflow:hidden;margin-top:2px}.sentence-suggestion-item{display:flex;align-items:center;width:100%;padding:8px 14px;background:none;border:none;cursor:pointer;text-align:right;direction:rtl;transition:background .1s}.sentence-suggestion-item:hover{background:var(--color-brand-muted)}.sentence-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:16px 18px;transition:border-color .15s}.sentence-card:hover{border-color:var(--color-border-medium)}.sentence-card-editing{border-color:var(--color-brand);background:var(--color-surface-raised)}.sentence-gloss{display:flex;flex-direction:row-reverse;flex-wrap:wrap;gap:4px 12px;padding:10px 14px;background:var(--color-surface-raised);border-radius:var(--radius-md);border:1px solid var(--color-border)}.sentence-gloss-word{display:flex;flex-direction:column;align-items:center;gap:3px}.sentence-gloss-arabic{font-family:var(--font-arabic);font-size:1.05rem;color:var(--color-text);direction:rtl}.sentence-gloss-english{font-size:.72rem;color:var(--color-brand-deep);font-style:italic;white-space:nowrap}.sentence-gloss-unknown{color:var(--color-text-muted);font-style:normal}.quran-page{display:grid;grid-template-columns:1fr 300px;gap:24px;align-items:start}.quran-text-panel{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:32px;box-shadow:var(--shadow-sm)}.surah-title{font-family:var(--font-arabic);font-size:1.5rem;direction:rtl;text-align:center;color:var(--color-brand-deep);margin-bottom:24px;font-weight:700}[data-theme=dark] .surah-title{color:var(--color-brand)}.verse{direction:rtl;text-align:right;margin-bottom:16px;padding:14px 16px;border-radius:var(--radius-md);border:1px solid transparent;transition:border-color var(--transition),background var(--transition);position:relative}.verse:hover{background:var(--color-brand-muted)}.verse-number{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:50%;background:var(--color-text);color:var(--color-bg);font-size:.7rem;font-weight:600;margin-left:10px;flex-shrink:0;font-family:var(--font-ui)}.verse-text{font-family:var(--font-arabic);font-size:1.5rem;line-height:3.2;color:var(--color-text);direction:rtl}.quran-word{cursor:pointer;padding:2px 4px;border-radius:4px;transition:background var(--transition),color var(--transition);display:inline-flex;flex-direction:column;align-items:center;vertical-align:top}.quran-word-arabic{font-family:var(--font-arabic);font-size:1em;line-height:1.4}.quran-word-english{font-size:.6em;line-height:1.2;color:var(--color-text-muted);max-width:80px;text-align:center;word-break:break-word;white-space:normal;transition:color var(--transition)}.quran-word:hover .quran-word-english,.quran-word.selected .quran-word-english{color:inherit}.surah-stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.surah-stat{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:10px 12px;text-align:center}.surah-stat-label{font-size:.72rem;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:4px}.surah-stat-value{font-size:1.1rem;font-weight:700;color:var(--color-text)}.quran-word:hover{background:#0d0d0d;color:#fff}[data-theme=dark] .quran-word:hover{background:var(--color-brand);color:#0d0d0d}.quran-word.selected{background:#0d0d0d;color:#fff}[data-theme=dark] .quran-word.selected{background:var(--color-brand);color:#0d0d0d}.quran-word.match{background:var(--color-warning);color:#fff}.quran-word.match.selected{background:#0d0d0d;color:#fff}[data-theme=dark] .quran-word.match.selected{background:var(--color-brand);color:#0d0d0d}.verse-result-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);margin-bottom:16px;overflow:hidden}.verse-result-header{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;background:var(--color-surface-raised);border-bottom:1px solid var(--color-border);font-size:.82rem;color:var(--color-text-muted)}.verse-result-header strong{color:var(--color-text)}.verse-result-body{padding:16px 20px}.search-result-count{font-size:.82rem;color:var(--color-text-muted);margin-bottom:16px;font-family:var(--font-mono)}.quran-info-panel{position:sticky;top:20px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:24px;box-shadow:var(--shadow-sm)}.quran-info-arabic{font-family:var(--font-arabic);font-size:2.5rem;direction:rtl;text-align:center;color:var(--color-brand-deep);font-weight:700;margin-bottom:12px}[data-theme=dark] .quran-info-arabic{color:var(--color-brand)}.quran-info-english{font-size:1.05rem;font-weight:600;color:var(--color-text);text-align:center;margin-bottom:8px}.quran-info-row{display:flex;justify-content:space-between;align-items:center;padding:8px 0;border-bottom:1px solid var(--color-border-light);font-size:.85rem}.quran-info-row:last-of-type{border-bottom:none}.quran-info-label{color:var(--color-text-muted)}.quran-info-value{font-weight:500;color:var(--color-text)}.quran-info-value.arabic{font-family:var(--font-arabic);font-size:1rem}.deck-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}@media (max-width: 900px){.deck-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width: 580px){.deck-grid{grid-template-columns:1fr}}.deck-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:20px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:12px;transition:border-color var(--transition),box-shadow var(--transition)}.deck-card:hover{border-color:var(--color-border-medium);box-shadow:var(--shadow-md)}.deck-card-title{font-size:.95rem;font-weight:600;color:var(--color-text);letter-spacing:-.1px}.deck-card-desc{font-size:.85rem;color:var(--color-text-muted);flex:1;line-height:1.5}.deck-card-meta{display:flex;flex-wrap:wrap;align-items:center;gap:6px 12px;font-size:.75rem;color:var(--color-text-muted)}.deck-card-actions{display:flex;gap:8px}.settings-section{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:24px;margin-bottom:16px;box-shadow:var(--shadow-sm)}.settings-section-title{font-size:.9rem;font-weight:600;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--color-border);color:var(--color-text);text-transform:uppercase;letter-spacing:.065em;font-family:var(--font-mono)}.theme-options{display:flex;gap:10px;flex-wrap:wrap}.theme-option{display:flex;align-items:center;gap:8px;padding:8px 16px;border:1px solid var(--color-border-medium);border-radius:var(--radius-full);cursor:pointer;font-size:.875rem;font-weight:500;transition:border-color var(--transition),color var(--transition),background var(--transition);background:var(--color-surface);color:var(--color-text-muted);font-family:var(--font-ui)}.theme-option:hover{border-color:var(--color-brand);color:var(--color-brand-deep)}.theme-option.active{border-color:var(--color-brand);color:var(--color-brand-deep);background:var(--color-brand-muted)}[data-theme=dark] .theme-option:hover,[data-theme=dark] .theme-option.active{color:var(--color-brand)}.flashcard-page{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:32px;background:var(--color-surface-elevated)}.flashcard-header{width:100%;max-width:640px;margin-bottom:24px}.flashcard-container{width:100%;max-width:640px;display:flex;flex-direction:column;align-items:center;gap:20px}.session-complete{text-align:center;padding:40px;max-width:500px;margin:0 auto}.session-complete-title{font-size:1.8rem;margin-bottom:12px;font-weight:600;letter-spacing:-.5px}.session-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:24px 0}.session-stat{background:var(--color-surface-raised);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:16px;text-align:center}.session-stat-value{font-size:1.8rem;font-weight:600;color:var(--color-text);letter-spacing:-.6px}.session-stat-label{font-size:.72rem;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.065em;font-family:var(--font-mono);margin-top:2px}.dashboard-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:20px}.dashboard-grid-full{grid-column:1 / -1}.greeting{font-size:1.5rem;font-weight:600;color:var(--color-text);margin-bottom:4px;letter-spacing:-.4px}.greeting-sub{color:var(--color-text-muted);margin-bottom:24px}.review-cta{background:#0d0d0d;color:#ededed;border-radius:var(--radius-xl);padding:24px;margin-bottom:20px;display:flex;align-items:center;justify-content:space-between;gap:16px;box-shadow:var(--shadow-md)}[data-theme=dark] .review-cta{background:#1a1a1a;border:1px solid rgba(255,255,255,.08)}.review-cta-text h2{font-size:1.1rem;font-weight:600;margin-bottom:4px;color:#fff;letter-spacing:-.2px}.review-cta-text p{color:#fff9;font-size:.875rem}.review-cta .btn{background:var(--color-brand);color:#0d0d0d;border-color:var(--color-brand);font-weight:600;flex-shrink:0}.review-cta .btn:hover{opacity:.88}.deck-list-item{display:flex;align-items:center;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--color-border-light)}.deck-list-item:last-child{border-bottom:none}.deck-list-name{font-weight:500;font-size:.9rem}.deck-list-meta{font-size:.78rem;color:var(--color-text-muted);font-family:var(--font-mono)}.deck-list-badge{background:var(--color-brand-muted);color:var(--color-brand-deep);padding:2px 10px;border-radius:var(--radius-full);font-size:.72rem;font-weight:500;font-family:var(--font-mono)}[data-theme=dark] .deck-list-badge{color:var(--color-brand)}.empty-state{text-align:center;padding:60px 20px;color:var(--color-text-muted)}.empty-state-icon{font-size:2.5rem;margin-bottom:16px}.empty-state-title{font-size:1.1rem;font-weight:600;color:var(--color-text);margin-bottom:8px}.badge{display:inline-flex;align-items:center;padding:2px 10px;border-radius:var(--radius-full);font-size:.72rem;font-weight:500;font-family:var(--font-mono);letter-spacing:.03em}.badge-primary{background:var(--color-brand-muted);color:var(--color-brand-deep)}[data-theme=dark] .badge-primary{color:var(--color-brand)}.badge-success{background:var(--color-success-bg);color:var(--color-success)}.divider{height:1px;background:var(--color-border);margin:20px 0}.flex-between{display:flex;align-items:center;justify-content:space-between}.flex-gap{display:flex;align-items:center;gap:10px}.text-muted{color:var(--color-text-muted)}.text-center{text-align:center}.mt-1{margin-top:4px}.mt-2{margin-top:8px}.mt-3{margin-top:12px}.mt-4{margin-top:16px}.mb-1{margin-bottom:4px}.mb-2{margin-bottom:8px}.mb-3{margin-bottom:12px}.mb-4{margin-bottom:16px}.wordbank-toolbar{display:flex;gap:10px;align-items:center;margin-bottom:16px;flex-wrap:wrap}.wordbank-actions{display:flex;gap:8px;align-items:center}.checkbox-cell{width:40px;text-align:center}input[type=checkbox]{width:15px;height:15px;cursor:pointer;accent-color:var(--color-brand)}.action-icons{display:flex;gap:4px}.icon-btn{background:none;border:none;cursor:pointer;color:var(--color-text-muted);padding:4px 6px;border-radius:var(--radius-sm);font-size:.9rem;transition:color var(--transition),background var(--transition)}.icon-btn:hover{color:var(--color-text);background:var(--color-surface-elevated)}.icon-btn.danger:hover{color:var(--color-danger);background:var(--color-danger-bg)}@media (max-width: 768px){.sidebar{top:auto;bottom:0;left:0;right:0;width:100%;height:64px;flex-direction:row;border-right:none;border-top:1px solid var(--color-border);overflow:visible}.sidebar-logo,.sidebar-footer,.sidebar-user,.sidebar-logout-btn,.sidebar-divider{display:none}.sidebar-nav{flex-direction:row;padding:0;justify-content:space-around;align-items:center;flex:1;gap:0}.sidebar-nav-item{flex-direction:column;gap:3px;padding:6px 8px;font-size:.62rem;min-width:0;flex:1;text-align:center;border-radius:0}.sidebar-nav-item .nav-icon{width:20px;height:20px}.main-content{margin-left:0;margin-bottom:64px}.page-container{padding:16px}.dashboard-grid,.quran-page{grid-template-columns:1fr}.rating-buttons{grid-template-columns:repeat(2,1fr)}.flashcard-page{padding:16px}.flashcard-scene{height:280px}.metric-cards{grid-template-columns:repeat(3,1fr)}}@media (max-width: 480px){.auth-card{padding:24px}.modal{padding:20px}.metric-cards{grid-template-columns:1fr 1fr}}.alert{padding:12px 16px;border-radius:var(--radius-lg);font-size:.875rem;margin-bottom:16px;border:1px solid transparent}.alert-danger{background:var(--color-danger-bg);color:var(--color-danger);border-color:#d4565633}.alert-success{background:var(--color-success-bg);color:var(--color-success);border-color:#0fa76e33}.alert-info{background:var(--color-info-bg);color:var(--color-info);border-color:#3772cf33}.spinner{display:inline-block;width:20px;height:20px;border:2px solid var(--color-border-medium);border-top-color:var(--color-brand);border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:16px;color:var(--color-text-muted)}.deck-panel{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:20px;margin-bottom:16px;box-shadow:var(--shadow-sm)}.deck-panel-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.deck-panel-title{font-size:.95rem;font-weight:600;letter-spacing:-.1px}.deck-actions-row{display:flex;gap:6px;flex-wrap:wrap}.tabs{display:flex;gap:0;border-bottom:1px solid var(--color-border);margin-bottom:20px}.tab-btn{background:none;border:none;cursor:pointer;padding:10px 18px;font-size:.875rem;font-weight:500;color:var(--color-text-muted);border-bottom:2px solid transparent;margin-bottom:-1px;transition:color var(--transition),border-color var(--transition);font-family:var(--font-ui)}.tab-btn:hover{color:var(--color-text)}.tab-btn.active{color:var(--color-text);border-bottom-color:var(--color-brand);font-weight:600}::-webkit-scrollbar{width:5px;height:5px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--color-border-medium);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--color-text-muted)}.rg-board{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:20px 0}@media (max-width: 600px){.rg-board{grid-template-columns:repeat(2,1fr)}}.rg-card{background:var(--color-surface);border:1px solid var(--color-border-medium);border-radius:var(--radius-lg);padding:14px 8px;text-align:center;cursor:pointer;transition:border-color var(--transition),background var(--transition),transform var(--transition),box-shadow var(--transition);-webkit-user-select:none;user-select:none;min-height:80px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px}.rg-card:hover{border-color:var(--color-brand);background:var(--color-brand-muted)}.rg-card.selected{border-color:var(--color-brand);background:var(--color-brand-muted);transform:translateY(-3px);box-shadow:var(--shadow-md)}.rg-card-arabic{font-size:1.3rem;font-weight:600;direction:rtl;font-family:var(--font-arabic)}.rg-card-english{font-size:.72rem;color:var(--color-text-muted);font-family:var(--font-ui)}.rg-solved-row{border-radius:var(--radius-lg);padding:12px 18px;margin-bottom:8px;display:flex;align-items:center;gap:16px}.rg-solved-root{font-size:1.2rem;font-weight:700;min-width:60px;direction:rtl;font-family:var(--font-arabic)}.rg-solved-words{font-size:.85rem;opacity:.92;direction:rtl;text-align:right;flex:1}.rg-board.shaking{animation:rg-shake .5s ease}@keyframes rg-shake{0%,to{transform:translate(0)}15%{transform:translate(-6px)}30%{transform:translate(6px)}45%{transform:translate(-5px)}60%{transform:translate(5px)}75%{transform:translate(-3px)}90%{transform:translate(3px)}}.sr-timer{font-size:1.4rem;font-weight:600;font-variant-numeric:tabular-nums;font-family:var(--font-mono);min-width:50px;text-align:center;transition:color .3s ease}.sr-timer-urgent{animation:sr-pulse .6s ease infinite}@keyframes sr-pulse{0%,to{transform:scale(1)}50%{transform:scale(1.15)}}.sr-question-card{transition:background var(--transition)}.sr-feedback-correct{background:var(--color-success-bg);border-color:#0fa76e40}.sr-feedback-wrong{background:var(--color-danger-bg);border-color:#d4565640}[data-theme=dark] .sr-feedback-correct{background:#18e2991a;border-color:#18e29940}[data-theme=dark] .sr-feedback-wrong{background:#e060601a;border-color:#e0606040}.profile-popover{position:absolute;bottom:calc(100% + 8px);left:12px;right:12px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:20px 16px 16px;z-index:200;text-align:center}.profile-popover-close{position:absolute;top:10px;right:10px;background:none;border:none;cursor:pointer;color:var(--color-text-muted);padding:2px;display:flex;align-items:center;border-radius:var(--radius);transition:color var(--transition)}.profile-popover-close:hover{color:var(--color-text)}.profile-popover-avatar{width:52px;height:52px;border-radius:50%;background:var(--color-brand-muted);color:var(--color-brand-deep);font-size:1.2rem;font-weight:700;display:flex;align-items:center;justify-content:center;margin:0 auto 10px;border:2px solid var(--color-brand)}.profile-popover-name{font-size:1rem;font-weight:700;color:var(--color-text);margin-bottom:2px}.profile-popover-email{font-size:.78rem;color:var(--color-text-muted);margin-bottom:12px;word-break:break-all}.profile-popover-trust{display:inline-flex;align-items:center;gap:5px;font-size:.82rem;background:var(--color-surface-elevated);border:1px solid var(--color-border);border-radius:var(--radius-full);padding:4px 12px;margin-bottom:14px}.profile-trust-tier{font-size:.72rem;font-weight:600;text-transform:uppercase;letter-spacing:.04em;opacity:.75;margin-left:2px}.profile-popover-actions{display:flex;flex-direction:column;gap:6px}.sidebar-collapsed .profile-popover{left:calc(100% + 8px);bottom:0;right:auto;width:220px}.offline-banner{display:flex;align-items:center;gap:8px;padding:8px 20px;background:var(--color-surface-elevated);border-bottom:1px solid var(--color-border);font-size:.78rem;color:var(--color-text-muted);font-style:italic;margin:-32px -32px 24px}.srs-info-btn{display:inline-flex;align-items:center;justify-content:center;width:16px;height:16px;border-radius:50%;background:var(--color-surface-elevated);border:1px solid var(--color-border);color:var(--color-text-muted);font-size:.65rem;font-weight:700;cursor:default;position:relative;margin-left:6px;flex-shrink:0;vertical-align:middle;font-style:normal;line-height:1}.srs-info-btn .srs-tooltip{display:none;position:absolute;bottom:calc(100% + 8px);left:50%;transform:translate(-50%);background:var(--color-text);color:var(--color-bg);font-size:.78rem;font-weight:400;line-height:1.5;padding:10px 13px;border-radius:var(--radius-md);white-space:nowrap;z-index:200;pointer-events:none;text-align:left;min-width:220px}.srs-info-btn .srs-tooltip:after{content:"";position:absolute;top:100%;left:50%;transform:translate(-50%);border:5px solid transparent;border-top-color:var(--color-text)}.srs-info-btn:hover .srs-tooltip{display:block}[data-theme=dark] .srs-info-btn .srs-tooltip{background:var(--color-surface-elevated);color:var(--color-text);border:1px solid var(--color-border)}[data-theme=dark] .srs-info-btn .srs-tooltip:after{border-top-color:var(--color-surface-elevated)}