*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--sidebar-bg: #1a1c22;--sidebar-hover: #23262f;--sidebar-active: #2c2f3e;--sidebar-border: rgba(255,255,255,.06);--sidebar-text: #dde1ed;--sidebar-muted: #7a8199;--accent: #6366f1;--accent-dark: #4f46e5;--accent-light: #eef2ff;--main-bg: #f0f2f7;--white: #ffffff;--text-primary: #0f1117;--text-secondary: #64748b;--text-muted: #94a3b8;--border: #e2e8f0;--shadow-sm: 0 1px 3px rgba(0,0,0,.07);--shadow-md: 0 4px 16px rgba(0,0,0,.09);--safe-bottom: env(safe-area-inset-bottom, 0px)}html,body{height:100%;overflow:hidden}body{font-family:Cairo,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--main-bg);color:var(--text-primary);direction:rtl;-webkit-font-smoothing:antialiased;-webkit-text-size-adjust:100%;touch-action:manipulation}.app{display:flex;height:100dvh;overflow:hidden}.main-content{flex:1;display:flex;flex-direction:column;overflow:hidden;min-width:0}.sidebar{width:300px;min-width:300px;background:var(--sidebar-bg);display:flex;flex-direction:column;height:100dvh;border-left:1px solid var(--sidebar-border)}.sidebar-top{padding:20px 16px 14px;border-bottom:1px solid var(--sidebar-border)}.sidebar-logo{font-size:19px;font-weight:900;color:var(--white);margin-bottom:14px;display:flex;align-items:center;gap:9px}.sidebar-logo-mark{width:32px;height:32px;background:var(--accent);border-radius:9px;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:900;color:#fff;flex-shrink:0}.compose-btn{width:100%;padding:11px 14px;background:var(--accent);color:#fff;border:none;border-radius:10px;font-size:14px;font-weight:700;font-family:Cairo,sans-serif;cursor:pointer;transition:background .15s;display:flex;align-items:center;justify-content:center;gap:6px;-webkit-tap-highlight-color:transparent}.compose-btn:hover{background:var(--accent-dark)}.compose-btn:active{background:var(--accent-dark);transform:scale(.98)}.sidebar-section-label{padding:12px 16px 5px;font-size:11px;font-weight:700;color:var(--sidebar-muted)}.thread-list{flex:1;overflow-y:auto;padding:4px 8px;-webkit-overflow-scrolling:touch}.thread-list::-webkit-scrollbar{width:3px}.thread-list::-webkit-scrollbar-thumb{background:#ffffff12;border-radius:2px}.thread-card{padding:13px 11px;border-radius:10px;cursor:pointer;transition:background .12s;margin-bottom:3px;border-right:2px solid transparent;-webkit-tap-highlight-color:transparent;-webkit-user-select:none;user-select:none}.thread-card:active{background:var(--sidebar-hover)}.thread-card.active{background:var(--sidebar-active);border-right-color:var(--accent)}.tc-subject{color:var(--sidebar-text);font-size:14px;font-weight:700;line-height:1.5;margin-bottom:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.tc-meta{display:flex;align-items:center;gap:5px;margin-bottom:5px}.tc-author{font-size:12px;color:var(--sidebar-muted)}.tc-preview{font-size:12px;color:var(--sidebar-muted);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:7px}.tc-footer{display:flex;align-items:center;gap:10px}.tc-stat{font-size:11.5px;color:var(--sidebar-muted)}.tc-closed-pill{font-size:10px;font-weight:700;padding:1px 8px;background:#ffffff12;color:var(--sidebar-muted);border-radius:100px}.dot{width:7px;height:7px;border-radius:50%;flex-shrink:0}.dot-OPEN{background:#22c55e}.dot-CLOSED{background:#64748b}.avatar{border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff;flex-shrink:0;font-family:Cairo,sans-serif}.user-selector{padding:12px 16px;padding-bottom:calc(12px + var(--safe-bottom));border-top:1px solid var(--sidebar-border);display:flex;align-items:center;gap:10px}.user-selector label{font-size:11px;font-weight:700;color:var(--sidebar-muted);white-space:nowrap}.user-selector select{flex:1;background:var(--sidebar-hover);color:var(--sidebar-text);border:1px solid rgba(255,255,255,.08);border-radius:8px;padding:8px 10px;font-size:13px;font-family:Cairo,sans-serif;outline:none;cursor:pointer;direction:rtl;min-height:38px}.empty-state{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--text-secondary);gap:10px;padding:40px 24px;text-align:center}.empty-icon{font-size:52px;opacity:.35}.empty-title{font-size:18px;font-weight:700;color:var(--text-primary)}.empty-sub{font-size:14px;color:var(--text-secondary);line-height:1.7}.loading{display:flex;align-items:center;justify-content:center;height:100%;color:var(--text-muted);font-size:15px;font-weight:600}.thread-view{display:flex;flex-direction:column;height:100%}.mobile-back{display:none}.tv-header{padding:18px 28px 16px;background:var(--white);border-bottom:1px solid var(--border);box-shadow:var(--shadow-sm);flex-shrink:0}.tv-subject{font-size:21px;font-weight:800;color:var(--text-primary);line-height:1.4;margin-bottom:11px}.tv-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.tv-author-chip{display:flex;align-items:center;gap:7px;background:var(--main-bg);border:1px solid var(--border);border-radius:100px;padding:4px 10px 4px 5px}.tv-author-name{font-size:13px;font-weight:700;color:var(--text-primary)}.tv-date{font-size:12px;color:var(--text-muted)}.tv-spacer{flex:1}.close-btn{padding:8px 16px;background:#fef2f2;color:#dc2626;border:1px solid #fecaca;border-radius:8px;font-size:13px;font-weight:700;font-family:Cairo,sans-serif;cursor:pointer;transition:all .15s;-webkit-tap-highlight-color:transparent;min-height:38px}.close-btn:hover{background:#fee2e2}.close-btn:active{transform:scale(.97)}.delete-btn{padding:7px 10px;background:none;color:var(--text-muted);border:1px solid var(--border);border-radius:8px;font-size:16px;cursor:pointer;transition:all .15s;line-height:1;min-height:36px;-webkit-tap-highlight-color:transparent}.delete-btn:hover{background:#fef2f2;border-color:#fecaca;color:#dc2626}.delete-btn:active{transform:scale(.95)}.closed-badge{display:flex;align-items:center;gap:5px;padding:6px 12px;background:#f8fafc;border:1px solid var(--border);color:var(--text-secondary);border-radius:8px;font-size:12.5px;font-weight:600}.messages-container{flex:1;overflow-y:auto;padding:24px 28px 16px;display:flex;flex-direction:column;-webkit-overflow-scrolling:touch}.original-post{background:var(--white);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow-md);margin-bottom:24px;overflow:hidden}.op-author-bar{display:flex;align-items:center;gap:12px;padding:16px 20px 13px;border-bottom:1px solid 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#00000038}.modal-title{font-size:18px;font-weight:800;color:var(--text-primary);margin-bottom:20px}.field{margin-bottom:16px}.field-label{display:block;font-size:12px;font-weight:700;color:var(--text-secondary);margin-bottom:6px}.field-input{width:100%;padding:11px 13px;border:1px solid var(--border);border-radius:10px;font-size:15px;font-family:Cairo,sans-serif;font-weight:500;outline:none;transition:border-color .15s,box-shadow .15s;color:var(--text-primary);background:var(--white);direction:rtl;-webkit-appearance:none;min-height:46px}.field-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px #6366f11a}.field-textarea{width:100%;padding:12px 13px;border:1px solid var(--border);border-radius:10px;font-size:15px;font-family:Cairo,sans-serif;font-weight:500;resize:none;min-height:200px;outline:none;line-height:1.9;transition:border-color .15s,box-shadow 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.main-content{transform:translate(0)}.thread-view{height:100dvh;max-height:100dvh;overflow:hidden}.mobile-back{display:flex;align-items:center;justify-content:flex-end;gap:8px;width:100%;min-height:52px;padding:0 20px;background:var(--sidebar-bg);color:#e2e8f0;font-family:Cairo,sans-serif;font-size:15px;font-weight:700;border:none;border-bottom:1px solid rgba(255,255,255,.08);cursor:pointer;flex-shrink:0;-webkit-tap-highlight-color:transparent;letter-spacing:.2px}.mobile-back:active{background:var(--sidebar-hover)}.tv-header{padding:14px 16px 12px;flex-shrink:0}.tv-subject{font-size:16px;margin-bottom:8px}.tv-date{display:none}.messages-container{padding:14px 14px 12px;min-height:0;overflow-y:auto;-webkit-overflow-scrolling:touch}.op-author-bar{padding:13px 14px 11px;gap:10px}.op-author-name{font-size:14px}.op-body{padding:14px 16px 18px;font-size:14.5px;line-height:2}.reply-item{gap:9px}.reply-content{font-size:14px;padding:10px 13px 12px}.reply-author-bar{padding:9px 13px 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var(--border);flex-shrink:0}.btn-create,.btn-cancel{flex:1;text-align:center;padding:13px;font-size:15px}.sidebar-top{padding:14px 14px 12px}.sidebar-logo{font-size:18px;margin-bottom:12px}.thread-card{padding:14px 12px;margin-bottom:4px}.tc-subject{font-size:14.5px}.user-selector select{min-height:44px}}@media (max-width: 375px){.tv-subject{font-size:15px}.op-body{font-size:14px}}