:root{--primary: #6366f1;--accent: #8b5cf6;--gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);--success: #10b981;--danger: #ef4444;--surface: #ffffff;--bg: #f7f7fb;--border: rgba(0,0,0,.07);--text: #111827;--text-2: #6b7280;--text-3: #9ca3af;--shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);--shadow-md: 0 4px 16px rgba(0,0,0,.08);--shadow-primary: 0 8px 24px rgba(99,102,241,.32);--tab-h: 72px;--safe-bottom: env(safe-area-inset-bottom, 0px)}*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}html,body,#root{height:100%;width:100%;overflow:hidden}body{font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}.app{display:flex;flex-direction:column;height:100%;width:100%;max-width:430px;margin:0 auto;position:relative;background:var(--bg);overflow:hidden}.screen{display:flex;flex-direction:column;flex:1;overflow:hidden}.scroll{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch}.scroll::-webkit-scrollbar{display:none}.tab-bar{display:flex;height:calc(var(--tab-h) + var(--safe-bottom));background:#ffffffeb;backdrop-filter:blur(24px) saturate(180%);-webkit-backdrop-filter:blur(24px) saturate(180%);border-top:1px solid rgba(0,0,0,.06);flex-shrink:0;padding-bottom:var(--safe-bottom)}.tab-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;padding-top:10px;gap:3px;cursor:pointer;border:none;background:none}.tab-icon{font-size:22px;line-height:1.2;transition:transform .15s}.tab-label{font-size:10px;font-weight:500;color:var(--text-3);letter-spacing:.1px}.tab-dot{width:4px;height:4px;border-radius:2px;background:var(--primary);opacity:0;transition:opacity .15s}.tab-item.active .tab-label{color:var(--primary);font-weight:600}.tab-item.active .tab-icon{transform:scale(1.1)}.tab-item.active .tab-dot{opacity:1}.nav-bar{display:flex;align-items:center;justify-content:space-between;padding:12px 18px;background:#ffffffe6;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);flex-shrink:0}.nav-back{color:var(--primary);font-size:15px;font-weight:600;cursor:pointer;display:flex;align-items:center;gap:3px;background:none;border:none;font-family:inherit}.nav-title{font-size:16px;font-weight:700;color:var(--text);letter-spacing:-.2px}.nav-action{color:var(--primary);font-size:14px;font-weight:700;cursor:pointer;background:none;border:none;font-family:inherit}.card{background:var(--surface);border-radius:18px;padding:16px;margin:0 16px 12px;border:1px solid rgba(0,0,0,.05);box-shadow:var(--shadow-sm)}.book-card{display:flex;align-items:center;gap:14px}.book-cover{width:58px;height:82px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:28px;flex-shrink:0}.cover-fiction{background:linear-gradient(135deg,#c7d2fe,#818cf8)}.cover-scifi{background:linear-gradient(135deg,#a5f3fc,#38bdf8)}.cover-nonfiction{background:linear-gradient(135deg,#bbf7d0,#4ade80)}.cover-mystery{background:linear-gradient(135deg,#fde68a,#fbbf24)}.cover-default{background:linear-gradient(135deg,#e0e7ff,#818cf8)}.book-info{flex:1;min-width:0}.book-title{font-size:15px;font-weight:700;color:var(--text);letter-spacing:-.2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:2px}.book-author{font-size:13px;color:var(--text-2);margin-bottom:6px}.genre-badge{display:inline-flex;background:#ede9fe;color:var(--accent);border-radius:100px;padding:3px 10px;font-size:11px;font-weight:600}.stars{color:#f59e0b;font-size:12px;margin-top:4px;letter-spacing:1px}.btn-primary{background:var(--gradient);color:#fff;border:none;border-radius:100px;padding:16px;font-size:16px;font-weight:700;width:100%;cursor:pointer;box-shadow:var(--shadow-primary);font-family:inherit;letter-spacing:-.2px;margin-bottom:14px}.btn-secondary{border:1.5px solid var(--primary);color:var(--primary);background:#eef2ff;border-radius:100px;padding:14px;font-size:14px;font-weight:700;width:100%;cursor:pointer;font-family:inherit;margin-bottom:10px}.btn-danger{border:1.5px solid #fca5a5;color:var(--danger);background:#fef2f2;border-radius:100px;padding:14px;font-size:14px;font-weight:700;width:100%;cursor:pointer;font-family:inherit;margin-bottom:10px}.btn-link{color:var(--primary);font-weight:600;cursor:pointer;font-size:14px;background:none;border:none;font-family:inherit}.sell-btn{background:var(--gradient);color:#fff;border-radius:100px;padding:8px 18px;font-size:13px;font-weight:700;cursor:pointer;box-shadow:0 4px 12px #6366f159;border:none;font-family:inherit}.input-wrap{margin-bottom:14px}.input-label{font-size:12px;font-weight:600;color:var(--text-2);text-transform:uppercase;letter-spacing:.5px;margin-bottom:6px;display:block}.input-field{border:1.5px solid var(--border);border-radius:14px;padding:14px 16px;font-size:16px;width:100%;background:var(--surface);outline:none;color:var(--text);font-family:inherit;box-shadow:var(--shadow-sm)}.input-field:focus{border-color:var(--primary)}textarea.input-field{resize:none}.chips-row{display:flex;gap:8px;padding:0 16px 14px;overflow-x:auto}.chips-row::-webkit-scrollbar{display:none}.chip-tab{padding:8px 16px;border-radius:100px;background:var(--surface);border:1.5px solid var(--border);font-size:13px;color:var(--text-2);cursor:pointer;white-space:nowrap;display:inline-flex;align-items:center;gap:7px;font-family:inherit;font-weight:500;box-shadow:var(--shadow-sm)}.chip-tab.active{background:var(--gradient);color:#fff;border-color:transparent;box-shadow:0 4px 14px #6366f159}.chip-badge{background:#0000001f;border-radius:10px;padding:1px 7px;font-size:11px;font-weight:700}.chip-tab.active .chip-badge{background:#ffffff40}.chips-wrap{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0 20px}.genre-chip{border:1.5px solid var(--border);border-radius:100px;padding:7px 16px;font-size:13px;color:var(--text-2);cursor:pointer;background:var(--surface);font-family:inherit;font-weight:500}.genre-chip.active{background:var(--gradient);color:#fff;border-color:transparent;box-shadow:0 2px 8px #6366f14d}.section-title{font-size:12px;font-weight:700;color:var(--text-3);text-transform:uppercase;letter-spacing:.7px;padding:14px 22px 8px}.screen-header-row{display:flex;justify-content:space-between;align-items:center;padding:4px 20px 14px}.screen-title{font-size:28px;font-weight:900;color:var(--text);letter-spacing:-.8px}.screen-sub{font-size:13px;color:var(--text-2);margin-top:1px}.search-bar{margin:0 16px 14px;background:var(--surface);border:1.5px solid var(--border);border-radius:14px;padding:11px 14px;font-size:14px;color:var(--text-3);display:flex;align-items:center;gap:8px;box-shadow:var(--shadow-sm)}.notif-btn{width:38px;height:38px;border-radius:12px;background:var(--surface);display:flex;align-items:center;justify-content:center;font-size:18px;box-shadow:var(--shadow-sm);border:1px solid rgba(0,0,0,.05);cursor:pointer;position:relative}.notif-pip{position:absolute;top:7px;right:7px;width:7px;height:7px;border-radius:4px;background:var(--danger);border:1.5px solid var(--bg)}.divider{display:flex;align-items:center;gap:12px;margin:6px 0 18px}.divider-line{flex:1;height:1px;background:var(--border)}.divider-text{font-size:12px;color:var(--text-3);font-weight:500}.form-label{font-size:12px;font-weight:600;color:var(--text-2);text-transform:uppercase;letter-spacing:.5px;margin-bottom:7px;display:block}.auth-footer{display:flex;justify-content:center;gap:4px;font-size:14px;color:var(--text-2)}.scan-area{background:linear-gradient(135deg,#eef2ff,#ede9fe);border-radius:16px;padding:20px;text-align:center;margin-bottom:18px;cursor:pointer;border:1.5px dashed #c7d2fe}.stats-row{display:flex;background:var(--surface);border-radius:18px;margin:14px 16px;box-shadow:var(--shadow-sm);border:1px solid rgba(0,0,0,.05)}.stat-box{flex:1;padding:18px 0;text-align:center}.stat-num{font-size:24px;font-weight:900;color:var(--primary);letter-spacing:-.5px}.stat-lbl{font-size:11px;color:var(--text-3);margin-top:3px;font-weight:500}.stat-div{width:1px;background:var(--border);margin:12px 0}.setting-row{display:flex;align-items:center;justify-content:space-between;padding:14px 0;border-bottom:1px solid var(--border)}.setting-row:last-child{border-bottom:none}.setting-label{font-size:14px;color:var(--text);font-weight:500}.toggle{width:48px;height:28px;border-radius:14px;position:relative;cursor:pointer;transition:background .2s}.toggle.on{background:var(--gradient)}.toggle.off{background:#e5e7eb}.toggle:after{content:"";position:absolute;width:24px;height:24px;background:#fff;border-radius:12px;top:2px;transition:left .2s;box-shadow:0 1px 4px #0003}.toggle.on:after{left:22px}.toggle.off:after{left:2px}.profile-banner{height:120px;background:var(--gradient);position:relative;flex-shrink:0}.profile-avatar-abs{position:absolute;bottom:-40px;left:20px}.profile-avatar{width:80px;height:80px;border-radius:22px;background:var(--gradient);display:flex;align-items:center;justify-content:center;font-size:34px;font-weight:800;color:#fff;border:3px solid #fff;box-shadow:0 4px 16px #00000026}.profile-info{background:var(--surface);padding:50px 20px 16px;border-bottom:1px solid var(--border);margin-bottom:14px}.profile-name{font-size:22px;font-weight:800;color:var(--text);letter-spacing:-.5px}.profile-handle{font-size:13px;color:var(--text-2);margin-top:2px}.profile-bio{font-size:14px;color:var(--text-2);margin-top:8px;line-height:1.5}.edit-btn{border:1.5px solid var(--primary);border-radius:100px;padding:8px 22px;font-size:13px;color:var(--primary);font-weight:600;cursor:pointer;background:#eef2ff;font-family:inherit}.signout-btn{background:#fef2f2;border:1.5px solid #fecaca;border-radius:14px;padding:14px;text-align:center;color:var(--danger);font-weight:600;cursor:pointer;font-size:14px;font-family:inherit;width:100%;margin-bottom:8px}.feed-avatar{width:42px;height:42px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:800;color:#fff;flex-shrink:0}.feed-user{font-weight:700;color:var(--text);font-size:14px}.feed-action{font-size:13px;color:var(--text-2)}.feed-book{color:var(--primary);font-size:12px;margin-top:3px;font-weight:600}.feed-time{color:var(--text-3);font-size:11px;margin-top:3px}.reaction-btn{display:inline-flex;align-items:center;gap:4px;font-size:12px;color:var(--text-2);cursor:pointer;background:none;border:none;font-family:inherit;padding:0}.stories-row{display:flex;gap:12px;padding:4px 16px 16px;overflow-x:auto}.stories-row::-webkit-scrollbar{display:none}.story-item{display:flex;flex-direction:column;align-items:center;gap:5px;flex-shrink:0;cursor:pointer}.story-ring{width:52px;height:52px;border-radius:18px;padding:2.5px}.story-ring.unseen{background:var(--gradient)}.story-ring.seen{background:#e5e7eb}.story-ring-inner{width:100%;height:100%;border-radius:15px;border:2px solid var(--bg);display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:800;color:#fff}.story-name{font-size:10px;color:var(--text-2);font-weight:500;max-width:52px;text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.author-card{display:flex;align-items:flex-start;gap:12px}.author-avatar{width:50px;height:50px;border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:800;color:#fff;flex-shrink:0}.author-name{font-size:15px;font-weight:700;color:var(--text);letter-spacing:-.2px}.author-bio{font-size:12px;color:var(--text-2);margin-top:2px;line-height:1.4}.author-followers{font-size:11px;color:var(--text-3);margin-top:4px;font-weight:500}.follow-btn{border:1.5px solid var(--primary);border-radius:100px;padding:6px 14px;font-size:12px;color:var(--primary);font-weight:700;cursor:pointer;align-self:center;flex-shrink:0;font-family:inherit;background:#eef2ff}.follow-btn.following{background:var(--gradient);color:#fff;border-color:transparent;box-shadow:0 2px 8px #6366f14d}.group-genre{background:#ede9fe;color:var(--accent);border-radius:100px;padding:3px 10px;font-size:11px;font-weight:600}.join-btn{background:var(--gradient);color:#fff;border-radius:100px;padding:7px 16px;font-size:12px;font-weight:700;cursor:pointer;box-shadow:0 2px 8px #6366f14d;border:none;font-family:inherit}.join-btn.joined{background:linear-gradient(135deg,#10b981,#059669);box-shadow:0 2px 8px #10b9814d}.condition-badge{display:inline-flex;background:#d1fae5;color:#059669;border-radius:100px;padding:2px 10px;font-size:11px;font-weight:600}.price-tag{font-size:17px;font-weight:800;color:var(--primary);letter-spacing:-.3px;white-space:nowrap}.progress-wrap{height:6px;background:#e5e7eb;border-radius:100px;overflow:hidden}.progress-fill{height:100%;background:var(--gradient);border-radius:100px}.progress-wrap-light{height:5px;background:#ffffff40;border-radius:100px;overflow:hidden}.progress-fill-light{height:100%;background:#fff;border-radius:100px}.activity-bar-row{display:flex;align-items:flex-end;gap:5px;height:40px}.activity-bar{flex:1;border-radius:4px 4px 0 0;min-height:4px;background:var(--gradient);opacity:.2}.activity-bar.active{opacity:1}.activity-labels{display:flex;gap:5px;margin-top:4px}.activity-label{flex:1;text-align:center;font-size:9px;color:var(--text-3);font-weight:500}.menu-icon-wrap{width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:24px;flex-shrink:0}.purple{background:linear-gradient(135deg,#ede9fe,#ddd6fe)}.blue{background:linear-gradient(135deg,#dbeafe,#bfdbfe)}.green{background:linear-gradient(135deg,#d1fae5,#a7f3d0)}.amber{background:linear-gradient(135deg,#fef3c7,#fde68a)}