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var(--color-fat)}.target-val{font-family:var(--font-mono);font-size:16px}.custom-target-section{background:var(--color-bone);border-radius:var(--radius-md);flex-direction:column;gap:12px;padding:16px;display:flex}.custom-target-toggle{cursor:pointer;align-items:center;gap:10px;font-weight:500;display:flex}.custom-target-toggle input{accent-color:var(--color-obsidian);width:16px;height:16px}.profile-form{flex-direction:column;gap:24px;display:flex}.form-row{grid-template-columns:1fr 1fr;gap:16px;display:grid}.save-status{border-radius:var(--radius-md);text-align:center;padding:12px;font-size:14px;font-weight:500}.save-status.success{color:var(--color-success);border:1px solid var(--color-success);background:#10b9811a}.save-status.error{color:var(--color-error);border:1px solid var(--color-error);background:#ef44441a}.custom-targets-grid{grid-template-columns:repeat(2,1fr);gap:12px;margin-top:16px;display:grid}@media (width<=850px){.profile-grid{grid-template-columns:1fr}}@media (width<=600px){.profile-container{padding:0 var(--space-md);margin:20px auto}.profile-title{font-size:var(--text-heading-sm)}.form-row,.custom-targets-grid{grid-template-columns:1fr}.profile-card{padding:var(--space-md)}}.challenges-page{max-width:1200px;margin:0 auto;padding:2rem;animation:.4s ease-out fadeIn}.challenges-page .page-header{margin-bottom:2rem}.challenges-page .page-header h1{font-family:var(--font-display);color:var(--color-text-primary);margin-bottom:.5rem;font-size:2.5rem}.challenges-page .page-header p{color:var(--color-text-secondary);font-size:1.1rem}.challenges-section{margin-bottom:3rem}.challenges-section h2{font-family:var(--font-display);color:var(--color-text-primary);border-bottom:1px solid var(--color-border);margin-bottom:1.5rem;padding-bottom:.5rem;font-size:1.8rem}.challenge-grid{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem;display:grid}.challenge-card{background-color:var(--color-paper);border:1px solid var(--color-silver);border-radius:var(--radius-cards);padding:var(--card-padding);transition:all var(--transition-base);box-shadow:var(--shadow-md);flex-direction:column;display:flex;position:relative}.challenge-card:hover{border-color:var(--color-graphite);box-shadow:var(--shadow-glow);transform:translateY(-4px)}.challenge-card.active{border-color:var(--color-obsidian);box-shadow:var(--shadow-glow)}.challenge-card h3{color:var(--color-text-primary);margin-bottom:.75rem;font-size:1.25rem}.challenge-card p{color:var(--color-text-secondary);flex-grow:1;margin-bottom:1.5rem;line-height:1.5}.progress-container{margin-bottom:1.5rem}.progress-bar{background-color:var(--color-background);border-radius:4px;height:8px;margin-bottom:.5rem;overflow:hidden}.progress-fill{background-color:var(--color-primary);border-radius:4px;height:100%;transition:width .3s}.progress-text{color:var(--color-text-secondary);text-align:right;font-size:.875rem;display:block}.challenge-footer{justify-content:space-between;align-items:center;margin-top:auto;display:flex}.points{color:var(--color-accent);background-color:color-mix(in srgb, var(--color-accent) 15%, transparent);border-radius:9999px;padding:.25rem .75rem;font-size:.875rem;font-weight:600}.status{text-transform:capitalize;color:var(--color-primary);font-size:.875rem;font-weight:500}.opt-in-btn{background-color:var(--color-primary);color:var(--color-background);border-radius:var(--radius-md);cursor:pointer;border:none;padding:.5rem 1rem;font-weight:500;transition:background-color .2s}.opt-in-btn:hover{background-color:color-mix(in srgb, var(--color-primary) 80%, black)}.empty-state{color:var(--color-text-secondary);text-align:center;background-color:var(--color-surface);border-radius:var(--radius-lg);border:1px dashed var(--color-border);padding:2rem;font-style:italic}.bmi-container{max-width:600px;margin:0 auto}.bmi-card{text-align:center}.bmi-title{margin-bottom:var(--space-xs)}.bmi-subtitle{color:var(--color-slate);margin-bottom:var(--space-xl)}.bmi-form{text-align:left;max-width:400px;margin:0 auto}.toggle-group{gap:var(--space-sm);margin-bottom:var(--space-lg);display:flex}.toggle-group .btn{flex:1}.form-row{gap:var(--space-md);display:flex}.form-group.half{flex:1}.bmi-result-section{margin-top:var(--space-2xl);padding-top:var(--space-xl);border-top:1px solid var(--color-silver)}.bmi-value{font-size:var(--text-display);margin-left:8px;font-weight:700;display:inline-block}.bmi-category{font-size:var(--text-subheading);margin-top:var(--space-xs);color:var(--color-slate)}.bmi-meter-container{margin-top:var(--space-xl);width:100%;max-width:300px;margin-left:auto;margin-right:auto;position:relative}.bmi-meter{width:100%;height:auto;overflow:visible}.needle{transition:transform 1s cubic-bezier(.175,.885,.32,1.275)}.meter-labels{margin-top:var(--space-sm);font-size:var(--text-caption);color:var(--color-slate);justify-content:space-between;font-weight:500;display:flex}.chat-widget-container{z-index:1000;flex-direction:column;align-items:flex-end;display:flex;position:fixed;bottom:24px;right:24px}.chat-fab{background:var(--color-paper);width:60px;height:60px;color:var(--color-ink);border:1px solid var(--color-border);cursor:pointer;border-radius:50%;justify-content:center;align-items:center;padding:0;transition:transform .2s,box-shadow .2s;display:flex;box-shadow:0 4px 12px #0000001a}.chat-fab:hover{transform:translateY(-2px);box-shadow:0 6px 16px #00000026}.chat-window{background:var(--color-paper);border:2px solid var(--color-border);border-radius:16px;flex-direction:column;width:350px;height:500px;max-height:calc(100vh - 40px);animation:.3s ease-out slideUp;display:flex;overflow:hidden;box-shadow:0 12px 32px #00000040}.chat-header{background:var(--color-paper);color:var(--color-ink);border-bottom:1px solid var(--color-border);justify-content:space-between;align-items:center;padding:16px 20px;display:flex}.chat-header h3{font-family:var(--font-heading);margin:0;font-size:1.1rem;font-weight:600}.close-btn{color:var(--color-ink);cursor:pointer;opacity:.8;background:0 0;border:none;justify-content:center;align-items:center;width:32px;height:32px;padding:0;font-size:1.5rem;font-weight:700;line-height:1;transition:transform .2s,opacity .2s;display:flex}.close-btn:hover{opacity:1;transform:scale(1.1)}.chat-body{background:var(--color-sand);flex-direction:column;flex:1;gap:12px;padding:16px;display:flex;overflow-y:auto}.chat-message{flex-direction:column;max-width:85%;display:flex}.chat-message.user{align-self:flex-end}.chat-message.model{align-self:flex-start}.message-content{word-wrap:break-word;border-radius:12px;padding:12px 16px;font-size:.95rem;line-height:1.4}.chat-message.user .message-content{background:var(--color-paper);color:var(--color-ink);border:1px solid var(--color-border);border-bottom-right-radius:2px}.chat-message.model .message-content{background:var(--color-paper);color:var(--color-ink);border:1px solid var(--color-border);border-bottom-left-radius:2px}.markdown-content p{margin:0 0 8px}.markdown-content p:last-child{margin-bottom:0}.markdown-content ul,.markdown-content ol{margin:0 0 8px;padding-left:20px}.markdown-content ul:last-child,.markdown-content ol:last-child{margin-bottom:0}.markdown-content li{margin-bottom:4px}.typing{align-items:center;gap:4px;padding:16px;display:flex}.dot{background:var(--color-slate);border-radius:50%;width:6px;height:6px;animation:1.4s ease-in-out infinite both typingBounce}.dot:first-child{animation-delay:-.32s}.dot:nth-child(2){animation-delay:-.16s}@keyframes typingBounce{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}.chat-footer{background:var(--color-paper);border-top:1px solid var(--color-border);align-items:center;gap:12px;padding:12px 16px;display:flex}.chat-footer input{border:1px solid var(--color-border);font-family:var(--font-body);background:var(--color-sand);color:var(--color-ink);border-radius:20px;outline:none;flex:1;padding:10px 16px;font-size:.95rem}.chat-footer input:focus{border-color:var(--color-ink)}.chat-footer button{background:var(--color-ink);color:var(--color-paper);cursor:pointer;border:none;border-radius:50%;justify-content:center;align-items:center;width:40px;height:40px;transition:opacity .2s;display:flex}.chat-footer button:disabled{opacity:.5;cursor:not-allowed}@media (width<=480px){.chat-widget-container{bottom:16px;right:16px}.chat-window{width:calc(100vw - 32px);height:80vh}}