:root{--bg: #e4e9f2;--surface-1: #eef1f7;--surface-2: #ffffff;--border: #c4ccda;--border-strong: #a6b0c2;--text-primary: #131a24;--text-secondary: #424c5b;--text-muted: #67717f;--text-accent: #2563eb;--bg-accent: #e7f0fd;--border-accent: #a8c7f5;--text-danger: #d23f49;--bg-danger: #fdeced;--border-danger: #f3c2c6;--text-warning: #b87a14;--bg-warning: #fcf3e0;--border-warning: #f0d9a8;--text-success: #2f8f55;--bg-success: #e6f5ec;--border-success: #bfe5cd;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "SF Mono", Consolas, monospace;--radius: 8px}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:linear-gradient(160deg,#f2f5fa 0%,var(--bg) 55%,#d7deea 100%);color:var(--text-primary);font-family:var(--font-sans)}button{font-family:inherit;font-size:13px;padding:6px 12px;border-radius:var(--radius);border:.5px solid var(--border-strong);background:var(--surface-2);color:var(--text-primary);cursor:pointer}button:hover{background:var(--surface-1)}button:active{transform:scale(.98)}input,select{font-family:inherit;font-size:13px;padding:6px 10px;border-radius:var(--radius);border:.5px solid var(--border);background:var(--surface-2);color:var(--text-primary)}input:focus,select:focus{outline:none;border-color:var(--text-accent);box-shadow:0 0 0 3px var(--bg-accent)}:root{--shadow-sm: 0 1px 2px rgba(20, 30, 50, .06), 0 1px 3px rgba(20, 30, 50, .05);--shadow-md: 0 2px 6px rgba(20, 30, 50, .08), 0 4px 16px rgba(20, 30, 50, .06);--shadow-lg: 0 8px 30px rgba(20, 30, 50, .16)}.card{background:var(--surface-2);border:.5px solid var(--border);border-radius:12px;box-shadow:var(--shadow-sm)}.card-pad{padding:1rem 1.25rem}button{transition:background .12s ease,box-shadow .12s ease,transform .05s ease}button:focus-visible{outline:none;box-shadow:0 0 0 3px var(--bg-accent)}button.primary{background:var(--text-accent);color:#fff;border-color:var(--text-accent);font-weight:500}button.primary:hover{background:#1d54d4}button.ghost{background:transparent;border-color:transparent}button.ghost:hover{background:var(--surface-1)}button:disabled{opacity:.55;cursor:default}.brand-mark{width:30px;height:30px;border-radius:8px;background:linear-gradient(150deg,#2f7bf0,#1d54d4);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:17px;box-shadow:var(--shadow-sm)}.toaster{position:fixed;bottom:20px;right:20px;z-index:3000;display:flex;flex-direction:column;gap:8px}.toast{background:var(--surface-2);border:.5px solid var(--border);border-left:3px solid var(--text-accent);box-shadow:var(--shadow-lg);border-radius:10px;padding:10px 14px;font-size:13px;min-width:220px;animation:toast-in .18s ease}.toast.success{border-left-color:var(--text-success)}.toast.error{border-left-color:var(--text-danger)}@keyframes toast-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:fade-in .2s ease}@keyframes fade-in{0%{opacity:0}to{opacity:1}}