:root{--primary-blue: #1f3c88;--dark-blue: #162d66;--background: #111111;--text-color: #eaeaea;--header-bg: #1a1a1a;--card-bg: #222222;--border: #2e2e2e;--accent: #4da3ff}*{margin:0;padding:0;box-sizing:border-box;font-family:Segoe UI,Tahoma,sans-serif}body{background:var(--background);color:var(--text-color);min-height:100vh}.hidden{display:none!important}.login-overlay{min-height:100vh;display:flex;align-items:center;justify-content:center;background:#0d0d0d}.login-box{background:var(--card-bg);border:1px solid var(--border);border-radius:16px;padding:48px 40px;width:100%;max-width:400px;display:flex;flex-direction:column;align-items:center;gap:16px}.login-logo img{height:70px;width:auto}#login-logo-dark{display:none}@media(prefers-color-scheme:dark){#login-logo-light{display:none}#login-logo-dark{display:block}}.login-box h2{font-size:1.4rem;color:#fff}.login-sub{font-size:.85rem;color:#888}.login-field{width:100%;display:flex;flex-direction:column;gap:10px}.login-field 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