*{margin:0;padding:0;box-sizing:border-box}:root{--bg: #f7f5f1;--surface: #ffffff;--text: #080605;--text-muted: #6d7175;--border: #f4f0e8;--primary: #080605;--primary-hover-bg: #e3dbd2;--primary-hover-border: #e3dbd2;--danger: #d72c0d;--slot-bg: #faf8f5;--font-serif: "IvarText-Regular", Georgia, "Times New Roman", serif;--font-heading: "IvarSoft-Regular", Georgia, serif;--font-sans: "MaisonNeue-Bold", "Helvetica Neue", Arial, sans-serif}body{font-family:var(--font-serif);background:var(--bg);color:var(--text);line-height:1.5}.login-screen{display:flex;align-items:center;justify-content:center;min-height:100vh}.login-card{background:var(--surface);border:1px solid var(--border);padding:40px;width:360px}.login-card h1{font-family:var(--font-heading);font-size:22px;font-weight:400;margin-bottom:24px;text-align:center}.login-card p{color:var(--text-muted);margin-bottom:1.5rem;font-size:14px}.login-card input{width:100%;padding:10px 12px;border:1px solid var(--border);font-family:var(--font-serif);font-size:14px;margin-bottom:16px}.login-card input:focus{outline:none;border-color:var(--text)}.login-card button{width:100%;padding:13px 20px;background:var(--primary);color:#fff;border:1px solid var(--primary);font-family:var(--font-sans);font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:1px;cursor:pointer;transition:all .2s}.login-card button:hover{background:var(--primary-hover-bg);border-color:var(--primary-hover-border);color:var(--text)}.login-error{color:var(--danger);font-size:13px;margin-bottom:.5rem}.app-layout{display:flex;height:100vh}.canvas-area{flex:1;display:flex;flex-direction:column;padding:1rem;overflow:hidden}.sidebar{width:380px;min-width:380px;background:var(--surface);border-left:1px solid var(--border);display:flex;flex-direction:column;overflow-y:auto}.sidebar-header{padding:1rem 1.25rem;border-bottom:1px solid 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var(--border);font-family:var(--font-serif);font-size:14px;background:#fff;color:var(--text)}.yarn-picker select:focus{outline:none;border-color:var(--text)}.yarn-picker .color-option{display:flex;align-items:center;gap:.4rem}.mask-toggle{display:flex;align-items:center;gap:.4rem;font-size:13px;color:var(--text-muted)}.mask-toggle input[type=checkbox]{accent-color:var(--primary)}.status-bar{padding:.5rem 1rem;font-size:14px;color:var(--text-muted);background:var(--surface);border-top:1px solid var(--border);font-family:var(--font-serif);font-style:italic}.toast{position:fixed;bottom:1.5rem;right:1.5rem;background:var(--text);color:#fff;padding:.75rem 1.25rem;font-size:14px;font-family:var(--font-serif);z-index:1000;animation:fadeIn .2s}.toast.error{background:var(--danger)}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.view-toggle{display:flex;border:1px solid var(--border);overflow:hidden}.view-toggle button{padding:8px 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