@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap";.auth-bg-wrap{z-index:0;position:absolute;inset:0;overflow:hidden}.auth-bg-canvas{display:block;position:absolute;inset:0}.terminal-chrome{background:var(--bg-secondary);border-bottom:1px solid #ffffff0f;align-items:center;gap:8px;padding:10px 14px;display:flex}.chrome-dot{border-radius:50%;width:12px;height:12px;display:inline-block}.chrome-dot--close{background:#ff5f57;border:.5px solid #e0443e}.chrome-dot--minimize{background:#ffbd2e;border:.5px solid #dea123}.chrome-dot--maximize{background:#28c840;border:.5px solid #1aab29}.chrome-tab{font-family:var(--font-mono);color:var(--text-muted);margin-left:4px;font-size:12px}.auth-page{background:var(--bg-primary);justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex;position:relative;overflow:hidden}.auth-container{background:var(--bg-panel);border:1px solid var(--border-color);border-radius:var(--radius-lg);width:100%;max-width:420px;box-shadow:var(--shadow-card);z-index:1;animation:.3s forwards fadeIn;position:relative;overflow:hidden}.auth-container-wide{max-width:520px}.auth-body{padding:36px 32px 32px;animation:.35s .15s both slideUp}.auth-header{margin-bottom:28px}.auth-logo{align-items:center;gap:8px;margin-bottom:16px;display:inline-flex}.auth-logo-icon{font-size:1.5rem}.auth-logo-text{color:var(--accent);letter-spacing:-.02em;font-size:1.3rem;font-weight:700}.auth-title{color:var(--text-primary);letter-spacing:-.02em;margin-bottom:4px;font-size:1.3rem;font-weight:700}.auth-subtitle{color:var(--text-secondary);font-size:.85rem}.auth-form{flex-direction:column;gap:16px;margin-top:20px;animation:.35s .25s both slideUp;display:flex}.form-row{grid-template-columns:1fr 1fr;gap:12px;display:grid}.form-input{transition:border-color .15s,background-color .15s}.form-input:focus{border-color:var(--accent);outline:none}.auth-form .btn-primary{justify-content:center;align-items:center;gap:6px;transition:transform .15s,background-color .15s;display:flex}.auth-form .btn-primary:hover:not(:disabled){background:var(--accent-hover);transform:translateY(-2px)}.auth-form .btn-primary:active:not(:disabled){transform:translateY(0)scale(.98)}.btn-arrow{opacity:0;transition:opacity .15s,transform .15s;transform:translate(-4px)}.auth-form .btn-primary:hover:not(:disabled) .btn-arrow{opacity:1;transform:translate(0)}.auth-footer{text-align:center;color:var(--text-secondary);margin-top:22px;font-size:.82rem}.auth-footer a{font-weight:600;transition:opacity .15s}.auth-footer a:hover{opacity:.7}.auth-body .alert{margin-bottom:8px}input[type=date].form-input{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}input[type=date].form-input::-webkit-calendar-picker-indicator{filter:invert(.6);cursor:pointer}@media (width<=480px){.form-row{grid-template-columns:1fr}.auth-body{padding:28px 20px 24px}.auth-container-wide{max-width:100%}}.nav-bar{border-bottom:1px solid var(--border-color);background:var(--bg-secondary);z-index:20;justify-content:space-between;align-items:center;gap:16px;padding:12px 24px;display:flex;position:sticky;top:0}.nav-brand{flex-shrink:0;align-items:center;gap:8px;display:flex}.nav-brand-mark{font-size:1.2rem}.nav-brand-name{color:var(--accent);letter-spacing:-.02em;font-size:1.1rem;font-weight:700;text-decoration:none}.nav-links{flex-wrap:wrap;flex:1;align-items:center;gap:4px;display:flex}.nav-link{color:var(--text-secondary);border-radius:var(--radius-sm);transition:color var(--transition-fast), background var(--transition-fast);padding:7px 12px;font-size:.8rem;text-decoration:none}.nav-link:hover{color:var(--text-primary);background:#ffffff0a}.nav-link-active{color:var(--accent);background:#e3a8571a}.nav-right{flex-shrink:0;align-items:center;gap:10px;display:flex}.nav-user{color:var(--text-secondary);text-overflow:ellipsis;white-space:nowrap;max-width:160px;font-size:.8rem;text-decoration:none;overflow:hidden}.nav-user:hover{color:var(--accent)}.nav-btn{padding:7px 14px;font-size:.8rem;text-decoration:none}@media (width<=720px){.nav-bar{padding:10px 14px}.nav-user{display:none}}.home-page{min-height:100vh}.home-nav{border-bottom:1px solid var(--border-color);background:var(--bg-secondary);justify-content:space-between;align-items:center;padding:14px 28px;display:flex}.home-nav-brand{align-items:center;gap:8px;display:flex}.home-nav-right{align-items:center;gap:14px;display:flex}.home-nav-user{color:var(--text-secondary);font-size:.85rem;font-weight:500}.home-content{max-width:1000px;margin:0 auto;padding:0 24px}.home-welcome-card{text-align:center;width:100%;max-width:500px;padding:44px}.home-welcome-emoji{margin-bottom:14px;font-size:2.5rem}.home-welcome-title{letter-spacing:-.02em;color:var(--text-primary);margin-bottom:10px;font-size:1.6rem;font-weight:700}.home-welcome-text{color:var(--text-secondary);margin-bottom:28px;font-size:.9rem;line-height:1.7}.home-stats{grid-template-columns:repeat(3,1fr);gap:12px;display:grid}.home-stat{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-md);transition:border-color var(--transition-fast);flex-direction:column;gap:4px;padding:14px;display:flex}.home-stat:hover{border-color:#ffffff24}.home-stat-value{font-size:1.4rem;font-weight:700;font-family:var(--font-mono);color:var(--accent)}.home-stat-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;font-size:.7rem;font-weight:600}@media (width<=480px){.home-nav{padding:12px 16px}.home-welcome-card{padding:28px 20px}.home-stats{grid-template-columns:1fr}}.home-hero{max-width:720px;padding:56px 0 36px}.home-hero-title{letter-spacing:-.03em;margin:0 0 14px;font-size:2.4rem;font-weight:800;line-height:1.1}.home-hero-accent{color:var(--accent)}.home-hero-text{color:var(--text-secondary);margin:0 0 24px;font-size:.95rem;line-height:1.7}.home-hero-actions{flex-wrap:wrap;gap:12px;display:flex}.home-cta{padding:10px 22px;font-size:.88rem;text-decoration:none}.home-stats{grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:12px;margin-bottom:40px;display:grid}.home-stat{border:1px solid var(--border-color);border-radius:var(--radius-md);background:var(--bg-panel);flex-direction:column;gap:2px;padding:14px;display:flex}.home-stat-value{font-family:var(--font-mono);color:var(--accent);font-size:1.5rem;font-weight:700}.home-stat-label{text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);font-size:.7rem}.home-section-title{margin:0;font-size:1rem;font-weight:600}.home-recent{margin-bottom:40px}.home-recent-head{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.home-see-all{color:var(--accent);font-size:.78rem;text-decoration:none}.home-recent-list{flex-direction:column;gap:6px;margin:0;padding:0;list-style:none;display:flex}.home-recent-item{border:1px solid var(--border-color);border-radius:var(--radius-md);background:var(--bg-panel);transition:border-color var(--transition-fast);justify-content:space-between;align-items:center;gap:12px;padding:11px 14px;text-decoration:none;display:flex}.home-recent-item:hover{border-color:var(--accent)}.home-recent-title{color:var(--text-primary);font-size:.86rem}.home-features{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;padding-bottom:60px;display:grid}.home-feature{padding:18px}.home-feature-icon{font-size:1.4rem}.home-feature-title{margin:10px 0 6px;font-size:.95rem;font-weight:600}.home-feature-text{color:var(--text-secondary);margin:0;font-size:.82rem;line-height:1.6}@media (width<=640px){.home-hero-title{font-size:1.8rem}}.lang-select-wrap{position:relative}.lang-select{appearance:none;background:var(--bg-input);color:var(--text-primary);border-radius:var(--radius-sm);font-family:var(--font-mono,monospace);cursor:pointer;border:1px solid #ffffff1a;padding:8px 30px 8px 12px;font-size:13px}.lang-select:focus{border-color:var(--accent);outline:none}.lang-select:disabled{opacity:.6;cursor:not-allowed}.lang-select-wrap:after{content:"";border-right:1.5px solid var(--text-muted);border-bottom:1.5px solid var(--text-muted);pointer-events:none;width:8px;height:8px;position:absolute;top:50%;right:10px;transform:translateY(-70%)rotate(45deg)}.exec-panel{flex-direction:column;height:100%;display:flex}.exec-tabs{border-bottom:1px solid #ffffff14;align-items:center;gap:4px;padding:8px 12px;display:flex}.exec-tab{color:var(--text-muted);font-family:var(--font-mono,monospace);border-radius:var(--radius-sm);cursor:pointer;background:0 0;border:none;padding:6px 10px;font-size:12px}.exec-tab--active{color:var(--text-primary);background:var(--bg-input)}.exec-status{font-size:11px;font-family:var(--font-mono,monospace);border-radius:var(--radius-sm);margin-left:auto;padding:3px 8px}.exec-status--running{color:var(--accent);background:#e3a8571a}.exec-status--success{color:var(--success);background:#3ecf8e1a}.exec-status--runtime_error,.exec-status--tle,.exec-status--mle{color:var(--error);background:#f1554c1a}.exec-body{flex:1;padding:14px;overflow:auto}.exec-input{background:var(--bg-input);border-radius:var(--radius-sm);width:100%;height:100%;min-height:200px;color:var(--text-primary);font-family:var(--font-mono,monospace);resize:none;box-sizing:border-box;border:1px solid #ffffff1a;padding:10px;font-size:13px}.exec-input:focus{border-color:var(--accent);outline:none}.exec-placeholder{color:var(--text-muted);font-size:13px}.exec-placeholder--pulse{animation:1.4s ease-in-out infinite pulse-text}@keyframes pulse-text{0%,to{opacity:.5}50%{opacity:1}}.exec-stdout,.exec-stderr{font-family:var(--font-mono,monospace);white-space:pre-wrap;word-break:break-word;margin:0 0 12px;font-size:13px}.exec-stdout{color:var(--text-primary)}.exec-stderr{color:var(--error)}.exec-meta{color:var(--text-muted);font-size:11px;font-family:var(--font-mono,monospace);gap:16px;margin-top:8px;display:flex}.playground-shell{flex-direction:column;min-height:100vh;display:flex}.playground-page{background:var(--bg-primary);flex:1;justify-content:center;padding:24px;display:flex}.playground-frame{border-radius:var(--radius-lg);background:var(--bg-panel);border:1px solid #ffffff14;flex-direction:column;width:100%;max-width:1400px;display:flex;overflow:hidden}.playground-body{min-height:640px;display:flex}.playground-editor-col{border-right:1px solid #ffffff14;flex-direction:column;flex:62%;display:flex}.playground-panel-col{flex-direction:column;flex:38%;display:flex}.playground-toolbar{border-bottom:1px solid #ffffff14;justify-content:space-between;align-items:center;gap:12px;padding:10px 14px;display:flex}.run-btn{background:var(--accent);color:var(--bg-panel);border-radius:var(--radius-sm);cursor:pointer;letter-spacing:.02em;border:none;padding:8px 20px;font-size:13px;font-weight:600;transition:background-color .15s,transform .15s}.run-btn:hover:not(:disabled){background:var(--accent-hover);transform:translateY(-1px)}.run-btn:disabled{opacity:.6;cursor:not-allowed}@media (width<=860px){.playground-body{flex-direction:column}.playground-editor-col{border-bottom:1px solid #ffffff14;border-right:none}.code-editor-wrap{min-height:320px}}.problems-page{min-height:100vh}.problems-content{max-width:960px;margin:0 auto;padding:32px 24px}.problems-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-bottom:24px;display:flex}.problems-title{letter-spacing:-.02em;color:var(--text-primary);font-size:1.5rem;font-weight:700}.problems-controls{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.problems-search{width:220px;font-size:.8rem;font-family:var(--font-family);color:var(--text-primary);background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-sm);transition:border-color var(--transition-fast);padding:6px 12px}.problems-search::placeholder{color:var(--text-muted)}.problems-search:focus{border-color:var(--accent);outline:none}.problems-search::-webkit-search-cancel-button{filter:grayscale()opacity(.5);cursor:pointer}.problems-filters{gap:6px;display:flex}.filter-btn{font-size:.78rem;font-weight:500;font-family:var(--font-family);color:var(--text-secondary);border:1px solid var(--border-color);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast);background:0 0;padding:6px 14px}.filter-btn:hover{border-color:var(--accent);color:var(--accent)}.filter-btn--active{background:var(--accent);color:var(--accent-contrast);border-color:var(--accent)}.filter-btn--active:hover{background:var(--accent-hover);color:var(--accent-contrast)}.problems-loading{justify-content:center;padding:64px 0;display:flex}.problems-table-wrap{border:1px solid var(--border-color);border-radius:var(--radius-lg);overflow:hidden}.problems-table{border-collapse:collapse;width:100%;font-size:.88rem}.problems-table thead{background:var(--bg-secondary)}.problems-table th{text-align:left;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);border-bottom:1px solid var(--border-color);padding:12px 16px;font-size:.72rem;font-weight:600}.th-num{width:50px}.th-difficulty{width:110px}.th-acceptance{text-align:center;width:100px}.problems-table td{border-bottom:1px solid var(--border-color);vertical-align:middle;padding:14px 16px}.problem-row{transition:background var(--transition-fast)}.problem-row:hover{background:#ffffff05}.problem-row:last-child td{border-bottom:none}.td-num{font-family:var(--font-mono);color:var(--text-muted);font-size:.8rem}.td-title{font-weight:500}.problem-link{color:var(--text-primary);transition:color var(--transition-fast);text-decoration:none}.problem-link:hover{color:var(--accent)}.td-acceptance{text-align:center;color:var(--text-muted);font-family:var(--font-mono);font-size:.8rem}.tag-pill{color:var(--text-secondary);background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:999px;margin:2px 4px 2px 0;padding:2px 8px;font-size:.68rem;font-weight:500;display:inline-block}.problems-empty{text-align:center;color:var(--text-muted);font-style:italic;padding:40px 16px!important}.problems-empty-query{color:var(--text-secondary);font-style:normal;font-family:var(--font-mono)}.problems-pagination{justify-content:center;align-items:center;gap:16px;margin-top:24px;display:flex}.pagination-btn{padding:7px 16px!important;font-size:.8rem!important}.pagination-info{color:var(--text-secondary);font-size:.82rem;font-family:var(--font-mono)}@media (width<=640px){.problems-header{flex-direction:column;align-items:flex-start}.problems-controls{flex-direction:column;align-items:stretch;width:100%}.problems-search{width:100%}.th-tags,.td-tags,.th-acceptance,.td-acceptance{display:none}}.discussion-panel{flex-direction:column;gap:16px;padding:4px 2px 20px;display:flex}.discussion-loading{justify-content:center;padding:30px;display:flex}.discussion-composer,.discussion-reply-box{flex-direction:column;gap:8px;display:flex}.discussion-input{resize:vertical;font-family:var(--font-family);font-size:.85rem;line-height:1.5}.discussion-composer-actions{justify-content:flex-end;align-items:center;gap:10px;display:flex}.discussion-count{font-size:.7rem;font-family:var(--font-mono);color:var(--text-muted);margin-right:auto}.discussion-signin,.discussion-empty{color:var(--text-secondary);margin:0;font-size:.85rem}.discussion-error{color:var(--error);margin:0;font-size:.8rem}.discussion-list,.discussion-replies{margin:0;padding:0;list-style:none}.discussion-list{flex-direction:column;gap:14px;display:flex}.discussion-thread{border:1px solid var(--border-color);border-radius:var(--radius-md);background:var(--bg-panel);padding:12px}.discussion-replies{border-left:2px solid var(--border-color);flex-direction:column;gap:10px;margin-top:12px;padding-left:14px;display:flex}.discussion-comment-head{align-items:baseline;gap:10px;margin-bottom:6px;display:flex}.discussion-author{color:var(--accent);font-size:.8rem;font-weight:600}.discussion-time{color:var(--text-muted);font-size:.7rem}.discussion-content{color:var(--text-primary);white-space:pre-wrap;word-break:break-word;margin:0 0 8px;font-size:.85rem;line-height:1.55}.discussion-deleted{color:var(--text-muted);font-size:.8rem;font-style:italic}.discussion-actions{align-items:center;gap:12px;display:flex}.discussion-vote,.discussion-link-btn{cursor:pointer;color:var(--text-secondary);transition:color var(--transition-fast);background:0 0;border:none;padding:2px 4px;font-size:.75rem}.discussion-vote{font-family:var(--font-mono)}.discussion-vote:hover:not(:disabled),.discussion-link-btn:hover{color:var(--accent)}.discussion-vote:disabled{cursor:not-allowed;opacity:.5}.discussion-voted{color:var(--accent);font-weight:700}.discussion-danger:hover{color:var(--error)}.discussion-more{align-self:center;padding:7px 18px;font-size:.8rem}.discussion-end{text-align:center;color:var(--text-muted);margin:0;font-size:.75rem}.company-widget{border:1px solid var(--border-color);border-radius:var(--radius-md);background:var(--bg-panel);flex-direction:column;gap:10px;padding:14px;display:flex}.company-widget-title{text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);margin:0;font-size:.78rem;font-weight:600}.company-widget-empty,.company-widget-mine{color:var(--text-secondary);margin:0;font-size:.78rem}.company-chips{flex-wrap:wrap;gap:6px;margin:0;padding:0;list-style:none;display:flex}.company-chip{border:1px solid var(--border-color);background:var(--bg-input);color:var(--text-primary);transition:border-color var(--transition-fast), color var(--transition-fast);border-radius:999px;align-items:center;gap:6px;padding:4px 10px;font-size:.75rem;text-decoration:none;display:inline-flex}.company-chip:hover{border-color:var(--accent);color:var(--accent)}.company-chip-count{font-family:var(--font-mono);color:var(--text-muted);font-size:.68rem}.company-form{flex-direction:column;gap:8px;display:flex}.company-input{padding:7px 10px;font-size:.8rem}.company-form-actions{gap:8px;display:flex}.company-btn{padding:6px 12px;font-size:.76rem}.company-ask{align-self:flex-start}.company-error{color:var(--error);margin:0;font-size:.75rem}.pd-page{flex-direction:column;height:100vh;display:flex;overflow:hidden}.pd-loading,.pd-error{min-height:60vh;color:var(--text-secondary);flex-direction:column;justify-content:center;align-items:center;gap:16px;display:flex}.pd-split{flex:1;display:flex;overflow:hidden}.pd-left{border-right:1px solid var(--border-color);scrollbar-width:thin;scrollbar-color:var(--border-color) transparent;width:42%;min-width:340px;overflow-y:auto}.pd-right{flex-direction:column;flex:1;display:flex;overflow:hidden}.pd-statement-card{padding:28px 28px 40px}.pd-meta-row{flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:12px;display:flex}.pd-title{color:var(--text-primary);letter-spacing:-.02em;margin-bottom:8px;font-size:1.4rem;font-weight:700}.pd-constraints{color:var(--text-muted);font-size:.75rem;font-family:var(--font-mono);gap:16px;margin-bottom:20px;display:flex}.pd-constraint{background:var(--bg-secondary);border-radius:var(--radius-sm);border:1px solid var(--border-color);padding:3px 8px}.pd-statement-text{color:var(--text-secondary);font-size:.88rem;line-height:1.7}.pd-statement-text p{margin:0 0 4px}.pd-blank{height:10px}.pd-samples{margin-top:28px}.pd-samples-heading{color:var(--text-primary);margin-bottom:12px;font-size:.92rem;font-weight:600}.pd-sample{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);margin-bottom:16px;padding:14px}.pd-sample-label{text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);margin-bottom:10px;font-size:.72rem;font-weight:600}.pd-io-grid{grid-template-columns:1fr 1fr;gap:10px;display:grid}.pd-io-block{min-width:0}.pd-io-label{text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);margin-bottom:4px;font-size:.68rem;font-weight:600}.pd-io-pre{background:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--radius-sm);font-family:var(--font-mono);color:var(--text-primary);white-space:pre-wrap;word-break:break-all;margin:0;padding:10px 12px;font-size:.78rem;line-height:1.5;overflow-x:auto}.pd-use-input-btn{font-size:.7rem;font-weight:500;font-family:var(--font-family);color:var(--accent);border:1px solid var(--accent);border-radius:var(--radius-sm);cursor:pointer;opacity:.7;transition:all var(--transition-fast);background:0 0;margin-top:8px;padding:4px 10px}.pd-use-input-btn:hover{opacity:1;background:#e3a85714}.pd-editor-wrap{flex-direction:column;flex:1;min-height:0;display:flex}.pd-toolbar{background:var(--bg-secondary);border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;padding:8px 12px;display:flex}.pd-toolbar-actions{gap:8px;display:flex}.pd-code-area{flex-direction:column;flex:1;min-height:0;display:flex}.submit-btn{font-size:.82rem;font-weight:600;font-family:var(--font-family);color:var(--bg-primary);background:var(--success);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast);letter-spacing:-.01em;border:none;padding:7px 16px}.submit-btn:hover:not(:disabled){background:#2dbe7e;transform:translateY(-1px)}.submit-btn:disabled{opacity:.5;cursor:not-allowed}.pd-verdict-banner{border-top:1px solid var(--border-color);align-items:center;gap:10px;padding:12px 16px;font-size:.85rem;font-weight:600;animation:.3s ease-out pd-verdict-slide;display:flex}@keyframes pd-verdict-slide{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.pd-verdict-icon{font-size:1.1rem}.pd-verdict-detail{opacity:.85;font-size:.78rem;font-weight:400}.verdict-pending{color:var(--text-secondary,#9aa4b2);border-left:3px solid var(--text-secondary,#9aa4b2);background:#ffffff0a}.verdict-pending .pd-verdict-icon{animation:1.2s ease-in-out infinite verdict-pulse}@keyframes verdict-pulse{0%,to{opacity:.35}50%{opacity:1}}.verdict-accepted{color:var(--success);border-left:3px solid var(--success);background:#3ecf8e1a}.verdict-wa{color:var(--error);border-left:3px solid var(--error);background:#f1554c1a}.verdict-tle,.verdict-mle{color:var(--accent);border-left:3px solid var(--accent);background:#e3a8571a}.verdict-re{color:var(--error);border-left:3px solid var(--error);background:#f1554c1a}.verdict-ce{color:var(--error);border-left:3px solid var(--error);background:#f1554c14}.pd-exec-panel{border-top:1px solid var(--border-color);height:200px;min-height:140px}@media (width<=768px){.pd-split{flex-direction:column}.pd-left{border-right:none;border-bottom:1px solid var(--border-color);width:100%;min-width:0;max-height:45vh}.pd-right{min-height:50vh}.pd-io-grid{grid-template-columns:1fr}}.pd-pane-tabs{border-bottom:1px solid var(--border-color);gap:4px;padding:12px 28px 10px;display:flex}.pd-pane-tabs+.pd-statement-card{padding-top:20px}.pd-pane-tab{border-radius:var(--radius-sm);cursor:pointer;color:var(--text-secondary);transition:color var(--transition-fast), background var(--transition-fast);background:0 0;border:none;padding:6px 14px;font-size:.8rem}.pd-pane-tab:hover{color:var(--text-primary);background:#ffffff0a}.pd-pane-tab-active{color:var(--accent);background:#e3a8571a}.profile-page{background:var(--bg-primary);min-height:100vh}.profile-main{flex-direction:column;gap:20px;max-width:1000px;margin:0 auto;padding:28px 24px 60px;display:flex}.profile-loading,.profile-empty{min-height:50vh;color:var(--text-secondary);justify-content:center;align-items:center;display:flex}.profile-header{align-items:center;gap:16px;display:flex}.profile-avatar{width:56px;height:56px;color:var(--accent-contrast);background:var(--accent);border-radius:50%;flex-shrink:0;place-items:center;font-size:1.5rem;font-weight:700;display:grid}.profile-name{letter-spacing:-.02em;margin:0;font-size:1.4rem;font-weight:700}.profile-meta{color:var(--text-secondary);margin:4px 0 0;font-size:.82rem}.profile-role{text-transform:uppercase;letter-spacing:.04em;color:var(--accent);background:#e3a8571f;border-radius:999px;margin-left:8px;padding:2px 8px;font-size:.68rem}.profile-grid{grid-template-columns:1.3fr 1fr;gap:20px;display:grid}.profile-card{padding:20px}.profile-card-head{justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px;display:flex}.profile-card-title{margin:0 0 16px;font-size:.95rem;font-weight:600}.profile-card-head .profile-card-title{margin:0}.profile-edit-btn{padding:5px 12px;font-size:.75rem}.profile-stat-row{grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:20px;display:grid}.profile-stat{border-radius:var(--radius-sm);background:var(--bg-input);flex-direction:column;gap:2px;padding:10px;display:flex}.profile-stat-value{font-size:1.25rem;font-weight:700;font-family:var(--font-mono);color:var(--accent)}.profile-stat-label{text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);font-size:.68rem}.profile-bars{flex-direction:column;gap:12px;display:flex}.profile-bar-head{justify-content:space-between;align-items:center;margin-bottom:6px;display:flex}.profile-bar-count{font-size:.75rem;font-family:var(--font-mono);color:var(--text-secondary)}.profile-bar-track{background:var(--bg-input);border-radius:999px;height:6px;overflow:hidden}.profile-bar-fill{height:100%;transition:width var(--transition-slow);border-radius:999px}.fill-easy{background:var(--success)}.fill-medium{background:var(--accent)}.fill-hard{background:var(--error)}.profile-details{flex-direction:column;gap:10px;margin:0;display:flex}.profile-detail{justify-content:space-between;gap:12px;font-size:.82rem;display:flex}.profile-detail dt{color:var(--text-muted)}.profile-detail dd{color:var(--text-primary);text-align:right;word-break:break-word;margin:0}.profile-form{flex-direction:column;gap:12px;display:flex}.profile-field{color:var(--text-secondary);flex-direction:column;gap:5px;font-size:.78rem;display:flex}.profile-form-actions{gap:8px;display:flex}.profile-error{color:var(--error);margin:0;font-size:.78rem}.profile-filter{max-width:190px;padding:6px 10px;font-size:.78rem}.submission-table{flex-direction:column;display:flex;overflow-x:auto}.submission-row{border-bottom:1px solid var(--border-color);grid-template-columns:2fr 1.2fr .8fr .8fr 1.4fr;align-items:center;gap:12px;min-width:640px;padding:10px 4px;font-size:.8rem;display:grid}.submission-head{text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);border-bottom:1px solid var(--border-color);font-size:.68rem}.submission-row:last-child{border-bottom:none}.submission-problem{color:var(--text-primary);font-weight:500;text-decoration:none}.submission-problem:hover{color:var(--accent)}.submission-muted{color:var(--text-secondary);font-family:var(--font-mono);font-size:.74rem}.submission-verdict{font-size:.76rem;font-weight:600}.submission-verdict.verdict-accepted{color:var(--success)}.submission-verdict.verdict-wrong_answer,.submission-verdict.verdict-runtime_error,.submission-verdict.verdict-compile_error{color:var(--error)}.submission-verdict.verdict-tle,.submission-verdict.verdict-mle{color:var(--accent)}.submission-verdict.verdict-pending,.submission-verdict.verdict-running{color:var(--text-muted)}.profile-pagination{justify-content:center;align-items:center;gap:14px;padding-top:16px;display:flex}.profile-page-label{color:var(--text-secondary);font-size:.78rem}.profile-empty-inline{color:var(--text-secondary);margin:0;font-size:.85rem}.profile-empty-inline a{color:var(--accent)}@media (width<=860px){.profile-grid{grid-template-columns:1fr}.profile-stat-row{grid-template-columns:repeat(2,1fr)}}.companies-page{background:var(--bg-primary);min-height:100vh}.companies-main{max-width:900px;margin:0 auto;padding:28px 24px 60px}.companies-header{margin-bottom:24px}.companies-back{color:var(--text-secondary);margin-bottom:10px;font-size:.78rem;text-decoration:none;display:inline-block}.companies-back:hover{color:var(--accent)}.companies-title{letter-spacing:-.02em;margin:0 0 6px;font-size:1.5rem;font-weight:700}.companies-subtitle{color:var(--text-secondary);margin:0 0 14px;font-size:.85rem}.companies-search{max-width:320px;padding:8px 12px;font-size:.82rem}.companies-loading{justify-content:center;padding:40px;display:flex}.companies-empty,.companies-error{color:var(--text-secondary);font-size:.85rem}.companies-error{color:var(--error)}.companies-grid{grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:12px;margin:0;padding:0;list-style:none;display:grid}.company-card{border:1px solid var(--border-color);border-radius:var(--radius-md);background:var(--bg-panel);transition:border-color var(--transition-fast), transform var(--transition-fast);flex-direction:column;gap:4px;padding:14px;text-decoration:none;display:flex}.company-card:hover{border-color:var(--accent);transform:translateY(-1px)}.company-card-name{color:var(--text-primary);font-size:.92rem;font-weight:600}.company-card-meta{color:var(--text-muted);font-size:.74rem}.companies-problem-list{flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex}.companies-problem{border:1px solid var(--border-color);border-radius:var(--radius-md);background:var(--bg-panel);transition:border-color var(--transition-fast);justify-content:space-between;align-items:center;gap:12px;padding:12px 14px;text-decoration:none;display:flex}.companies-problem:hover{border-color:var(--accent)}.companies-problem-title{color:var(--text-primary);font-size:.88rem}.wr-page{background:var(--bg-primary);flex-direction:column;min-height:100vh;display:flex}.wr-main{flex-direction:column;gap:28px;width:100%;max-width:900px;margin:0 auto;padding:28px 24px 60px;display:flex}.wr-loading,.wr-empty-page{min-height:50vh;color:var(--text-secondary);flex-direction:column;justify-content:center;align-items:center;gap:16px;display:flex}.wr-title{letter-spacing:-.02em;margin:0 0 6px;font-size:1.5rem;font-weight:700}.wr-subtitle{color:var(--text-secondary);max-width:62ch;margin:0;font-size:.85rem;line-height:1.6}.wr-section-title{margin:0 0 12px;font-size:.95rem;font-weight:600}.wr-error{color:var(--error);margin:0;font-size:.82rem}.wr-error-inline{padding:8px 16px}.wr-empty{color:var(--text-secondary);margin:0;font-size:.85rem}.wr-actions{grid-template-columns:1fr 1fr;gap:16px;display:grid}.wr-action-card{flex-direction:column;align-items:flex-start;gap:10px;padding:18px;display:flex}.wr-card-title{margin:0;font-size:.92rem;font-weight:600}.wr-card-text{color:var(--text-secondary);margin:0;font-size:.8rem}.wr-size-picker{gap:6px;display:flex}.wr-size{border-radius:var(--radius-sm);border:1px solid var(--border-color);background:var(--bg-input);color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast);padding:6px 12px;font-size:.78rem}.wr-size-active{border-color:var(--accent);color:var(--accent);background:#e3a8571a}.wr-code-input{font-family:var(--font-mono);letter-spacing:.2em;text-transform:uppercase;max-width:180px}.wr-room-list{flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex}.wr-room{border:1px solid var(--border-color);border-radius:var(--radius-md);background:var(--bg-panel);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:12px 14px;display:flex}.wr-room-info{flex-wrap:wrap;align-items:center;gap:10px;min-width:0;display:flex}.wr-room-code{font-family:var(--font-mono);letter-spacing:.1em;color:var(--accent);font-size:.82rem;font-weight:700}.wr-room-problem{color:var(--text-primary);font-size:.84rem}.wr-room-right{align-items:center;gap:12px;display:flex}.wr-room-slots{font-family:var(--font-mono);color:var(--text-secondary);font-size:.76rem}.wr-join-btn{padding:6px 14px;font-size:.76rem}.wr-status{color:var(--text-secondary);font-size:.74rem}.wr-status-finished{color:var(--success)}.wr-status-in_progress{color:var(--accent)}.wr-status-expired{color:var(--text-muted)}.wr-live{flex-direction:column;flex:1;min-height:0;display:flex}.wr-strip{border-bottom:1px solid var(--border-color);background:var(--bg-secondary);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;padding:10px 20px;display:flex}.wr-strip-left{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.wr-strip-problem{font-size:.86rem;font-weight:600}.wr-players{flex-wrap:wrap;gap:8px;display:flex}.wr-player{border-radius:var(--radius-sm);border:1px solid var(--border-color);background:var(--bg-input);flex-direction:column;gap:2px;min-width:120px;padding:6px 12px;display:flex}.wr-player-me{border-color:var(--accent)}.wr-player-empty{opacity:.5;border-style:dashed}.wr-player-name{color:var(--text-primary);font-size:.76rem;font-weight:600}.wr-player-state{font-size:.7rem;font-family:var(--font-mono);color:var(--text-muted)}.wr-player-state.state-accepted{color:var(--success)}.wr-player-state.state-pending,.wr-player-state.state-running{color:var(--accent)}.wr-player-state.state-wrong_answer,.wr-player-state.state-runtime_error,.wr-player-state.state-compile_error{color:var(--error)}.wr-result{justify-content:center;align-items:center;gap:16px;padding:12px;font-size:.95rem;font-weight:600;display:flex}.wr-result-win{color:var(--success);background:#3ecf8e1f}.wr-result-loss{color:var(--text-secondary);background:#ffffff0a}.wr-result-link{color:var(--accent);font-size:.78rem;font-weight:400}.wr-waiting{color:var(--text-secondary);border-bottom:1px solid var(--border-color);background:#e3a85714;padding:10px 20px;font-size:.82rem}.wr-body{flex:1;min-height:0;display:flex}.wr-statement{border-right:1px solid var(--border-color);flex-shrink:0;width:280px;padding:20px;overflow-y:auto}.wr-statement-title{margin:0 0 10px;font-size:1rem;font-weight:700}.wr-statement-link{color:var(--accent);font-size:.78rem}.wr-editor{flex-direction:column;flex:1;min-width:0;display:flex}.wr-toolbar{background:var(--bg-secondary);border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;padding:8px 12px;display:flex}.wr-code-area{flex-direction:column;flex:1;min-height:320px;display:flex}@media (width<=820px){.wr-actions{grid-template-columns:1fr}.wr-body{flex-direction:column}.wr-statement{border-right:none;border-bottom:1px solid var(--border-color);width:100%}}.admin-page{background:var(--bg-primary);min-height:100vh}.admin-main{max-width:1200px;margin:0 auto;padding:28px 24px 60px}.admin-header{margin-bottom:20px}.admin-title{letter-spacing:-.02em;margin:0 0 4px;font-size:1.5rem;font-weight:700}.admin-subtitle{color:var(--text-secondary);margin:0;font-size:.85rem}.admin-message,.admin-error{margin:0 0 14px;font-size:.82rem}.admin-message{color:var(--success)}.admin-error{color:var(--error)}.admin-layout{grid-template-columns:280px 1fr;align-items:start;gap:18px;display:grid}.admin-list,.admin-card{padding:16px}.admin-editor{flex-direction:column;gap:18px;min-width:0;display:flex}.admin-list-head{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.admin-card-title{margin:0 0 14px;font-size:.92rem;font-weight:600}.admin-list-head .admin-card-title{margin:0}.admin-small-btn{align-self:flex-start;padding:5px 12px;font-size:.75rem}.admin-problems{flex-direction:column;gap:4px;max-height:60vh;margin:0;padding:0;list-style:none;display:flex;overflow-y:auto}.admin-problem{border-radius:var(--radius-sm);width:100%;color:var(--text-secondary);text-align:left;cursor:pointer;transition:all var(--transition-fast);background:0 0;border:1px solid #0000;justify-content:space-between;align-items:center;gap:8px;padding:8px 10px;font-size:.8rem;display:flex}.admin-problem:hover{color:var(--text-primary);background:#ffffff0a}.admin-problem-active{border-color:var(--accent);color:var(--accent);background:#e3a85714}.admin-card{flex-direction:column;gap:12px;display:flex}.admin-field{color:var(--text-secondary);flex-direction:column;flex:1;gap:5px;min-width:0;font-size:.78rem;display:flex}.admin-row{flex-wrap:wrap;gap:12px;display:flex}.admin-textarea{resize:vertical;font-family:var(--font-family);line-height:1.5}.admin-mono{resize:vertical;font-family:var(--font-mono);font-size:.78rem}.admin-checkbox{color:var(--text-secondary);align-items:center;gap:8px;font-size:.78rem;display:flex}.admin-empty{color:var(--text-muted);margin:0;font-size:.8rem}.admin-cases{flex-direction:column;gap:8px;max-height:320px;margin:0;padding:0;list-style:none;display:flex;overflow-y:auto}.admin-case{border:1px solid var(--border-color);border-radius:var(--radius-sm);background:var(--bg-input);padding:10px}.admin-case-head{text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);justify-content:space-between;margin-bottom:6px;font-size:.7rem;display:flex}.admin-sample{color:var(--success)}.admin-hidden{color:var(--accent)}.admin-case-io{grid-template-columns:1fr 1fr;gap:8px;display:grid}.admin-pre{border-radius:var(--radius-sm);background:var(--bg-primary);font-family:var(--font-mono);color:var(--text-primary);white-space:pre-wrap;word-break:break-word;max-height:120px;margin:0;padding:8px;font-size:.74rem;overflow-x:auto}.admin-case-form{border-top:1px solid var(--border-color);flex-direction:column;gap:10px;padding-top:12px;display:flex}@media (width<=900px){.admin-layout{grid-template-columns:1fr}}#root{min-height:100vh}:root{--bg-primary:#0c0d10;--bg-secondary:#131418;--bg-panel:#17181d;--bg-input:#0f1013;--border-color:#ffffff14;--border-focus:var(--accent);--text-primary:#ece9e4;--text-secondary:#9a9ca6;--text-muted:#6b6d77;--accent:#e3a857;--accent-hover:#f0bc72;--accent-contrast:#17181d;--success:#3ecf8e;--success-bg:#3ecf8e14;--error:#f1554c;--error-bg:#f1554c14;--error-border:#f1554c40;--code-accent:#6fb3a8;--font-family:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono:"JetBrains Mono", "Fira Code", "Cascadia Code", monospace;--radius-sm:6px;--radius-md:8px;--radius-lg:12px;--shadow-card:0 4px 24px #0006;--shadow-input:0 1px 4px #0003;--transition-fast:.15s ease;--transition-base:.25s ease;--transition-slow:.4s ease}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:16px}body{font-family:var(--font-family);background:var(--bg-primary);color:var(--text-primary);min-height:100vh;line-height:1.6}a{color:var(--accent);transition:color var(--transition-fast);text-decoration:none}a:hover{color:var(--accent-hover)}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.form-group{flex-direction:column;gap:6px;display:flex}.form-label{font-family:var(--font-mono);color:var(--text-muted);letter-spacing:.03em;font-size:.8rem;font-weight:500}.form-label:after{content:":";color:var(--text-muted)}.form-input{background:var(--bg-input);border:1px solid var(--border-color);border-radius:var(--radius-sm);width:100%;color:var(--text-primary);font-family:var(--font-family);transition:border-color var(--transition-fast);outline:none;padding:11px 14px;font-size:.9rem}.form-input::placeholder{color:var(--text-muted)}.form-input:focus{border-color:var(--accent)}.form-input:hover:not(:focus){border-color:#ffffff24}.form-input.error{border-color:var(--error-border)}.form-error{color:var(--error);margin-top:2px;font-size:.75rem}.btn{font-family:var(--font-family);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast);letter-spacing:.01em;border:none;outline:none;justify-content:center;align-items:center;gap:8px;padding:11px 22px;font-size:.9rem;font-weight:600;display:inline-flex}.btn:disabled{opacity:.45;cursor:not-allowed;transform:none!important}.btn-primary{background:var(--accent);color:var(--accent-contrast)}.btn-primary:hover:not(:disabled){background:var(--accent-hover);transform:translateY(-1px)}.btn-primary:active:not(:disabled){transform:translateY(0)}.btn-ghost{color:var(--text-secondary);border:1px solid var(--border-color);background:0 0}.btn-ghost:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}.btn-danger{background:var(--error-bg);color:var(--error);border:1px solid var(--error-border)}.btn-danger:hover:not(:disabled){background:#f1554c26}.btn-block{width:100%}.card{background:var(--bg-panel);border:1px solid var(--border-color);border-radius:var(--radius-lg);box-shadow:var(--shadow-card)}.alert{border-radius:var(--radius-sm);padding:10px 14px;font-size:.8rem;font-weight:500}.alert-error{background:var(--error-bg);border:1px solid var(--error-border);color:var(--error)}.alert-success{background:var(--success-bg);color:var(--success);border:1px solid #3ecf8e40}.spinner{border:2px solid var(--border-color);border-top-color:var(--accent);border-radius:50%;width:22px;height:22px;animation:.6s linear infinite spin}.spinner-lg{border-width:3px;width:36px;height:36px}.loading-screen{flex-direction:column;justify-content:center;align-items:center;gap:14px;min-height:100vh;display:flex}.loading-screen p{color:var(--text-secondary);font-size:.9rem}.text-center{text-align:center}.text-secondary{color:var(--text-secondary)}.text-muted{color:var(--text-muted)}.text-accent{color:var(--accent)}.mt-1{margin-top:4px}.mt-2{margin-top:8px}.mt-3{margin-top:12px}.mt-4{margin-top:16px}.mt-6{margin-top:24px}.mt-8{margin-top:32px}.mb-2{margin-bottom:8px}.mb-4{margin-bottom:16px}.mb-6{margin-bottom:24px}.difficulty-badge,.badge{letter-spacing:.02em;text-transform:capitalize;border-radius:999px;padding:3px 10px;font-size:.72rem;font-weight:600;display:inline-block}.badge-easy{color:var(--success);background:#3ecf8e1a;border:1px solid #3ecf8e33}.badge-medium{color:var(--accent);background:#e3a8571a;border:1px solid #e3a85733}.badge-hard{color:var(--error);background:#f1554c1a;border:1px solid #f1554c33}.editor-loading{justify-content:center;align-items:center;height:100%;min-height:200px;display:flex}
