:root{--primary-blue: #1f3c88;--dark-blue: #162d66;--background: #111111;--text-color: #eaeaea;--header-bg: #1a1a1a;--card-bg: #222222;--border: #2e2e2e}*{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;text-align:center}.login-sub{font-size:.85rem;color:#888}.login-field{width:100%;display:flex;flex-direction:column;gap:6px}.login-field input{width:100%;padding:12px 14px;border-radius:8px;border:1px solid var(--border);background:#1a1a1a;color:#eaeaea;font-size:1rem;outline:none}.login-field input:focus{border-color:var(--primary-blue)}.login-error{color:#e55;font-size:.8rem}.login-back{font-size:.8rem;color:#666;text-decoration:none;margin-top:4px}.login-back:hover{color:#aaa}.btn-dash{background:var(--primary-blue);color:#fff;border:none;padding:10px 20px;border-radius:8px;font-size:.9rem;font-weight:600;cursor:pointer;width:100%;transition:background .2s}.btn-dash:hover{background:var(--dark-blue)}.btn-dash.btn-sm{width:auto;padding:8px 16px;font-size:.8rem}.dash-header{background:var(--header-bg);border-bottom:1px solid var(--border);padding:.75rem 32px;position:sticky;top:0;z-index:100}.dash-header-inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;gap:16px}.dash-logo img{height:55px;width:auto}#dash-logo-dark{display:none}@media(prefers-color-scheme:dark){#dash-logo-light{display:none}#dash-logo-dark{display:block}}.dash-title{font-size:1.2rem;font-weight:700;color:#fff;flex:1}.dash-main{max-width:1200px;margin:40px auto;padding:0 32px}.dash-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:20px}.file-card{background:var(--card-bg);border:1px solid var(--border);border-radius:12px;padding:24px 20px;display:flex;flex-direction:column;gap:12px;cursor:pointer;transition:border-color .2s,transform .15s}.file-card:hover{border-color:var(--primary-blue);transform:translateY(-2px)}.file-icon{color:#4da3ff}.file-info{display:flex;flex-direction:column;gap:4px}.file-name{font-weight:600;font-size:1rem;color:#fff}.file-tag{font-size:.75rem;color:#888;background:#2a2a2a;padding:2px 8px;border-radius:20px;width:fit-content}.file-open{font-size:.8rem;color:#4da3ff;font-weight:600;margin-top:auto}.modal-overlay{position:fixed;inset:0;background:#000000bf;z-index:1000;display:flex;align-items:center;justify-content:center;padding:20px}.modal-viewer{background:#1a1a1a;border:1px solid var(--border);border-radius:14px;width:100%;max-width:1100px;height:85vh;display:flex;flex-direction:column;overflow:hidden}.modal-viewer-header{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;border-bottom:1px solid var(--border);font-weight:600;font-size:1rem;color:#fff}.modal-close{background:none;border:none;color:#aaa;font-size:1.1rem;cursor:pointer;padding:4px 8px;border-radius:6px;transition:background .2s}.modal-close:hover{background:#2e2e2e;color:#fff}.modal-viewer-body{flex:1;overflow:hidden;position:relative}.modal-viewer-body iframe{width:100%;height:100%;border:none}.no-src-msg{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:#666;font-size:.9rem;text-align:center;padding:20px}.no-src-msg code{background:#2a2a2a;padding:2px 6px;border-radius:4px;color:#4da3ff}