@import"https://fonts.googleapis.com/css2?family=Spectral:wght@400;500;600;700&family=DM+Sans:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap";:root{--color-bg: #f9f9f8;--color-bg-muted: #f0f0ee;--color-surface: #ffffff;--color-border: #d8d8d5;--color-border-faint: #eaeae7;--color-text: #1a1a18;--color-text-muted: #6b6b66;--color-text-subtle: #9b9b95;--color-accent: #2d5fa3;--color-accent-hover: #214d8a;--color-accent-subtle:#e8eef7;--color-danger: #b83232;--color-danger-hover: #952828;--color-danger-subtle:#fdf0f0;--color-warn: #8a6200;--color-warn-subtle: #fdf6e0;--color-success: #2a7a3b;--color-success-subtle:#edf7ef;--font-sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--font-mono: ui-monospace, "Cascadia Code", "Fira Code", monospace;--text-xs: .75rem;--text-sm: .875rem;--text-base: .9375rem;--text-lg: 1rem;--text-xl: 1.125rem;--text-2xl: 1.375rem;--text-3xl: 1.75rem;--text-4xl: 2rem;--weight-normal: 400;--weight-medium: 500;--weight-semibold: 600;--weight-bold: 700;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--radius-sm: 3px;--radius: 5px;--radius-lg: 8px;--shadow-sm: 0 1px 2px rgba(0,0,0,.06);--shadow: 0 1px 4px rgba(0,0,0,.1);--shadow-md: 0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);--shadow-lg: 0 10px 15px rgba(0,0,0,.1), 0 4px 6px rgba(0,0,0,.05);--shadow-xl: 0 20px 25px rgba(0,0,0,.15), 0 10px 10px rgba(0,0,0,.04)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-family:var(--font-sans);font-size:var(--text-base);color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased}body{min-height:100vh;line-height:1.5}a{color:var(--color-accent);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3,h4{font-weight:var(--weight-semibold);line-height:1.3}h1{font-size:var(--text-2xl)}h2{font-size:var(--text-xl)}h3{font-size:var(--text-lg)}h4{font-size:var(--text-base);font-weight:var(--weight-medium)}:root{--postal-blue: #3d5a80;--postal-blue-dark: #2a4263;--postal-blue-mid: #5b7fa8;--postal-blue-light: #eef3f8;--ink-navy: #1a1f2e;--ink-charcoal: #374151;--ink-slate: #64748b;--ink-gray: #94a3b8;--ink-faint: #cbd5e1;--wax-red: #be123c;--wax-red-light: #fef2f3;--stamp-green: #15803d;--stamp-green-light: #f0fdf4;--letter-paper: #fefdfb;--parchment: #faf9f7;--envelope-cream: #f5f3ef;--airmail-stripe: #f8fafc;--border: #e2e8f0;--border-strong: #cbd5e1;--border-faint: #f1f5f9;--font-serif: "Spectral", "Georgia", "Times New Roman", serif;--font-sans: "DM Sans", "Inter", system-ui, sans-serif;--font-mono: "JetBrains Mono", "Consolas", monospace;--color-accent: var(--postal-blue);--color-accent-subtle: var(--postal-blue-light);--color-surface: var(--envelope-cream);--color-bg: var(--letter-paper);--color-text: var(--ink-navy);--color-text-muted: var(--ink-gray);--color-success: var(--stamp-green);--color-success-subtle: var(--stamp-green-light);--color-danger: var(--wax-red);--color-danger-subtle: var(--wax-red-light);--color-border: var(--border);--color-border-faint: var(--border-faint)}.t-letter{font-family:var(--font-serif);font-size:var(--text-base);line-height:1.7;color:var(--ink-navy)}.t-sender{font-family:var(--font-sans);font-size:var(--text-sm);font-weight:600;color:var(--ink-navy)}.t-subject{font-family:var(--font-sans);font-size:var(--text-sm);font-weight:500;color:var(--ink-navy)}.t-meta{font-family:var(--font-sans);font-size:var(--text-xs);color:var(--ink-gray)}.t-address{font-family:var(--font-mono);font-size:var(--text-xs);color:var(--postal-blue)}.t-label{font-family:var(--font-sans);font-size:var(--text-xs);font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-slate)}body{background:var(--letter-paper)}