:root{--bg-0: #0a0c12;--bg-1: #0f1117;--bg-2: #1a1d26;--bg-3: #22263a;--surface: #1e2130;--surface-2: #252940;--border: #2a2f45;--accent: #00e5ff;--accent-2: #39ff14;--accent-3: #ff6b35;--text-primary: #f0f2ff;--text-secondary: #8892b0;--text-muted: #4a5270;--danger: #ff4757;--success: #39ff14;--warning: #ffa502;--font-display: "Barlow Condensed", sans-serif;--font-body: "DM Sans", sans-serif;--radius: 12px;--radius-sm: 8px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{height:100%}body{height:100%;background:var(--bg-0);color:var(--text-primary);font-family:var(--font-body);font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased}#root{height:100%}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:var(--bg-1)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.app-layout{display:grid;grid-template-columns:240px 1fr;height:100vh;overflow:hidden}.main-content{overflow-y:auto;padding:32px;background:var(--bg-0);background-image:radial-gradient(ellipse at 80% 0%,rgba(0,229,255,.04) 0%,transparent 60%)}.sidebar{background:var(--bg-1);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:24px 0;position:relative;overflow:hidden}.sidebar:before{content:"";position:absolute;top:-100px;left:-100px;width:300px;height:300px;background:radial-gradient(circle,rgba(0,229,255,.05) 0%,transparent 70%);pointer-events:none}.sidebar-brand{padding:0 24px 28px;border-bottom:1px solid var(--border);margin-bottom:12px}.sidebar-brand h1{font-family:var(--font-display);font-size:26px;font-weight:900;letter-spacing:.05em;text-transform:uppercase;color:var(--text-primary)}.sidebar-brand h1 span{color:var(--accent)}.sidebar-brand p{color:var(--text-muted);font-size:12px;margin-top:2px}.nav-section{padding:8px 12px}.nav-label{font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.12em;color:var(--text-muted);padding:8px 12px 6px}.nav-link{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius-sm);color:var(--text-secondary);text-decoration:none;font-size:14px;font-weight:500;transition:all .15s;cursor:pointer;border:none;background:none;width:100%;text-align:left}.nav-link:hover{background:var(--bg-2);color:var(--text-primary)}.nav-link.active{background:#00e5ff1a;color:var(--accent)}.nav-link .icon{font-size:16px;width:20px;text-align:center}.nav-badge{margin-left:auto;background:var(--accent);color:var(--bg-0);font-size:10px;font-weight:700;padding:2px 6px;border-radius:10px}.sidebar-user{margin-top:auto;padding:16px 24px;border-top:1px solid var(--border);display:flex;align-items:center;gap:12px}.avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent-2));display:flex;align-items:center;justify-content:center;font-family:var(--font-display);font-weight:700;font-size:14px;color:var(--bg-0);flex-shrink:0}.avatar-lg{width:52px;height:52px;font-size:20px}.sidebar-user-info{flex:1;overflow:hidden}.sidebar-user-name{font-size:14px;font-weight:600;color:var(--text-primary);truncate:ellipsis;white-space:nowrap;overflow:hidden}.sidebar-user-username{font-size:12px;color:var(--text-muted)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px}.card-sm{padding:16px}.card-title{font-family:var(--font-display);font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.1em;color:var(--text-muted);margin-bottom:8px}.card-value{font-family:var(--font-display);font-size:42px;font-weight:900;letter-spacing:-.02em;color:var(--text-primary);line-height:1}.card-value-unit{font-size:18px;color:var(--text-muted);font-weight:400;margin-left:4px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:16px}.page-header{margin-bottom:28px}.page-title{font-family:var(--font-display);font-size:38px;font-weight:900;text-transform:uppercase;letter-spacing:.03em;line-height:1;color:var(--text-primary)}.page-subtitle{color:var(--text-secondary);font-size:14px;margin-top:6px}.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:var(--radius-sm);font-family:var(--font-body);font-size:14px;font-weight:500;cursor:pointer;border:none;transition:all .15s;text-decoration:none;white-space:nowrap}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent);color:var(--bg-0);font-weight:600}.btn-primary:hover:not(:disabled){background:#00cfea;box-shadow:0 0 20px #00e5ff4d}.btn-ghost{background:transparent;color:var(--text-secondary);border:1px solid var(--border)}.btn-ghost:hover:not(:disabled){background:var(--bg-2);color:var(--text-primary)}.btn-danger{background:transparent;color:var(--danger);border:1px solid rgba(255,71,87,.3)}.btn-danger:hover:not(:disabled){background:#ff47571a}.btn-sm{padding:7px 12px;font-size:13px}.btn-icon{padding:8px;border-radius:var(--radius-sm)}.form-group{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}.form-label{font-size:13px;font-weight:500;color:var(--text-secondary)}.form-input{background:var(--bg-2);border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 14px;color:var(--text-primary);font-family:var(--font-body);font-size:14px;transition:border-color .15s;outline:none;width:100%}.form-input:focus{border-color:var(--accent);box-shadow:0 0 0 2px #00e5ff1a}.form-input::placeholder{color:var(--text-muted)}select.form-input{cursor:pointer}select.form-input option{background:var(--bg-2)}textarea.form-input{resize:vertical;min-height:80px}.form-error{font-size:12px;color:var(--danger);margin-top:4px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}.progress-bar{height:6px;background:var(--bg-3);border-radius:3px;overflow:hidden;margin-top:8px}.progress-fill{height:100%;border-radius:3px;background:linear-gradient(90deg,var(--accent),var(--accent-2));transition:width .5s 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.2s}.heatmap-day.level-1{background:#00e5ff40}.heatmap-day.level-2{background:#00e5ff80}.heatmap-day.level-3{background:#00e5ffcc}.heatmap-day.level-4{background:var(--accent)}.friend-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}.friend-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;transition:border-color .2s}.friend-card:hover{border-color:#00e5ff4d}.friend-card-header{display:flex;align-items:center;gap:12px;margin-bottom:16px}.friend-card-name{font-weight:600;font-size:15px}.friend-card-username{font-size:12px;color:var(--text-muted)}.workout-list{display:flex;flex-direction:column;gap:10px}.workout-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px 18px;display:flex;align-items:center;gap:16px;transition:border-color 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#0000004d}.ring-container{position:relative;width:80px;height:80px}.ring-svg{transform:rotate(-90deg)}.ring-bg{fill:none;stroke:var(--bg-3);stroke-width:6}.ring-progress{fill:none;stroke-width:6;stroke-linecap:round;transition:stroke-dashoffset .5s ease}.ring-text{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;font-family:var(--font-display);font-size:16px;font-weight:700;color:var(--text-primary)}@media (max-width: 768px){.app-layout{grid-template-columns:1fr;grid-template-rows:auto 1fr}.sidebar{flex-direction:row;padding:0;overflow-x:auto}.form-row{grid-template-columns:1fr}.stats-grid{grid-template-columns:1fr 1fr}}.text-accent{color:var(--accent)}.text-muted{color:var(--text-muted)}.text-success{color:var(--success)}.text-danger{color:var(--danger)}.text-warning{color:var(--warning)}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-2{gap:8px}.gap-3{gap:12px}.gap-4{gap:16px}.mt-2{margin-top:8px}.mt-4{margin-top:16px}.w-full{width:100%}.truncate{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}