:root{--navy: #0f2a4a;--navy-dark: #0a1f38;--navy-light: #1c3f63;--accent: #3b82c4;--accent-dark: #2f6aa3;--brand-gold: #e6b450;--brand-gold-dark: #c08c2a;--bg: #eef1f5;--surface: #ffffff;--border: #d6dde5;--text: #1d2a38;--muted: #6b7888;--danger: #c0392b;--danger-bg: #fdecea;--success: #1f8a5b;--shadow: 0 1px 3px rgba(15, 42, 74, .12)}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:Segoe UI,Sarabun,Tahoma,sans-serif;background:var(--bg);color:var(--text);font-size:14px}h1{font-size:20px;margin:0 0 4px}h2{font-size:16px;margin:0 0 12px}a{color:var(--accent-dark)}.muted{color:var(--muted)}.small{font-size:12px}.center{text-align:center}.center-screen{display:flex;align-items:center;justify-content:center;height:100vh}button{font-family:inherit;cursor:pointer;border-radius:6px;border:1px solid transparent;font-size:14px}.btn-primary{background:var(--accent);color:#fff;padding:9px 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