:root{--color-bg:#dde5f0;--color-surface:#fff;--color-surface-muted:#f8fafc;--color-text:#0f172a;--color-muted:#64748b;--color-border:#e2e8f0;--color-border-soft:#f1f5f9;--color-slate-300:#cbd5e1;--color-slate-400:#94a3b8;--color-primary:#2563eb;--color-primary-dark:#1d4ed8;--color-primary-soft:#93c5fd;--color-primary-bg:#eff6ff;--color-neutral-900:#111827;--color-processing-text:#1e40af;--color-success:#16a34a;--color-success-light:#dcfce7;--color-success-dark:#166534;--color-success-border:#86efac;--color-danger:#dc2626;--color-danger-light:#fee2e2;--color-danger-dark:#991b1b;--color-warning:#f59e0b;--color-warning-light:#fef3c7;--color-warning-dark:#92400e;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--shadow-sm:0 1px 3px rgba(0,0,0,.06);--shadow-md:0 4px 6px rgba(0,0,0,.1);--font-family:Inter,system-ui,-apple-system,sans-serif;--font-size-xs:0.75rem;--font-size-sm:0.85rem;--font-size-base:0.95rem;--font-size-lg:1.125rem;--transition-fast:0.15s ease;--transition-base:0.2s ease}*{box-sizing:border-box}html{height:100%}body{margin:0;background:var(--color-bg);color:var(--color-text);font-family:var(--font-family);line-height:1.5}.container,body{height:100%;overflow:hidden}.container{display:flex;flex-direction:column;padding:1.5rem 1.5rem 0}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-sm)}button{border:none;border-radius:var(--radius-sm);padding:.65rem .9rem;font-size:.9rem;font-weight:600;cursor:pointer;transition:background var(--transition-base),opacity var(--transition-base),transform var(--transition-fast)}button:hover:not(:disabled){transform:translateY(-1px)}button:disabled{cursor:not-allowed;opacity:.65}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:disabled{background:var(--color-primary-soft)}.btn-secondary{background:var(--color-border);color:var(--color-text)}.btn-secondary:hover:not(:disabled){background:var(--color-slate-300)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media (max-width:768px){.container{padding:1rem .75rem 3rem}}