* { margin: 0; padding: 0; box-sizing: border-box; }
:root { --bg: #000; --fg: #fff; --border: rgba(255,255,255,0.1); --hover: rgba(255,255,255,0.05); }
[data-theme="light"] { --bg: #fff; --fg: #000; --border: rgba(0,0,0,0.1); --hover: rgba(0,0,0,0.05); }
body { font-family: 'Space Mono', monospace; background: var(--bg); min-height: 100vh; display: flex; align-items: center; justify-content: center; color: var(--fg); transition: all 0.3s; position: relative; overflow-y: auto; overflow-x: hidden; }
body::before { content: ''; position: absolute; top:0; left:0; width:100%; height:100%; background: radial-gradient(circle at var(--mouse-x) var(--mouse-y), rgba(255,255,255,0.1), transparent 40%); opacity:.5; pointer-events:none; transition: background .1s; }
[data-theme="light"]::before { background: radial-gradient(circle at var(--mouse-x) var(--mouse-y), rgba(0,0,0,0.1), transparent 40%); }
.theme-toggle { position:fixed; top:20px; right:20px; width:50px; height:50px; border:1px solid var(--border); background:transparent; color:var(--fg); cursor:pointer; font-size:1.5em; display:flex; align-items:center; justify-content:center; transition:.3s; z-index:100; }
.theme-toggle:hover { background: var(--hover); }
.container { width:90%; max-width:600px; position:relative; margin-bottom:80px; }
.card { background:var(--bg); border:1px solid var(--border); padding:40px; position:relative; }
h1 { font-family:'Space Mono', monospace; font-size:3em; font-weight:700; letter-spacing:1px; margin-bottom:5px; }
h2 { font-family:'Space Mono', monospace; margin-bottom:10px; font-weight:700; font-size:2em; }
.subtitle { font-family:'Space Mono', monospace; font-size:.8em; opacity:.5; margin-bottom:30px; font-weight:400; text-transform:uppercase; letter-spacing:2px; }
.input-group { margin-bottom:20px; position:relative; }
label { font-family:'Space Mono', monospace; display:block; font-size:.75em; margin-bottom:8px; opacity:.6; font-weight:400; text-transform:uppercase; letter-spacing:1px; }
input[type="text"], input[type="password"], select, textarea { font-family:'Space Mono', monospace; width:100%; padding:12px 0; background:transparent; border:none; border-bottom:1px solid var(--border); color:var(--fg); font-size:1em; transition:.3s; }
input::placeholder, textarea::placeholder { color:var(--fg); opacity:.3; }
input:focus, select:focus, textarea:focus { outline:none; border-bottom-color:var(--fg); }
select { cursor:pointer; }
select option { background:var(--bg); color:var(--fg); }
.field-group { position:relative; margin-bottom:10px; display:flex; gap:10px; align-items:center; animation:slideIn .3s ease; }
@keyframes slideIn { from { opacity:0; transform:translateX(-20px);} to { opacity:1; transform:translateX(0);} }
.field-number { font-size:.7em; opacity:.3; min-width:20px; }
.field-input-wrapper { flex:1; }
.add-button { width:30px; height:30px; border:1px solid var(--border); background:transparent; color:var(--fg); cursor:pointer; font-size:1.2em; display:flex; align-items:center; justify-content:center; transition:.3s; flex-shrink:0; }
.add-button:hover { background:var(--fg); color:var(--bg); }
.remove-button { width:25px; height:25px; border:1px solid var(--border); background:transparent; color:var(--fg); cursor:pointer; font-size:.9em; display:flex; align-items:center; justify-content:center; transition:.3s; opacity:.5; flex-shrink:0; }
.remove-button:hover { opacity:1; background:var(--fg); color:var(--bg); }
.password-group { display:flex; gap:10px; align-items:center; }
.gen-button { padding:12px 16px; border:1px solid var(--border); background:transparent; color:var(--fg); cursor:pointer; font-size:.75em; transition:.3s; text-transform:uppercase; letter-spacing:1px; white-space:nowrap; }
.gen-button:hover { background:var(--fg); color:var(--bg); }
.options-row { display:grid; grid-template-columns:1fr; gap:20px; margin-bottom:30px; }
.btn { font-family:'Space Mono', monospace; width:100%; padding:15px; background:var(--fg); border:none; color:var(--bg); font-size:.85em; font-weight:400; cursor:pointer; transition:.3s; text-transform:uppercase; letter-spacing:2px; position:relative; overflow:hidden; }
.btn::before { content:''; position:absolute; top:50%; left:50%; width:0; height:0; background:var(--bg); opacity:.3; border-radius:50%; transform:translate(-50%, -50%); transition:width .6s, height .6s; }
.btn:active::before { width:300px; height:300px; }
.btn:hover { background:var(--bg); color:var(--fg); border:1px solid var(--fg); }
.result { margin-top:30px; padding:20px; border:1px solid var(--border); display:none; animation:fadeIn .4s ease; max-height:60vh; overflow:auto; }
@keyframes fadeIn { from { opacity:0; } to { opacity:1; } }
.result.show { display:block; }
.result-header { font-size:.8em; text-transform:uppercase; letter-spacing:1px; opacity:.6; margin-bottom:15px; }
.result-url { word-break:break-all; padding:10px; background:var(--hover); margin:10px 0; font-family:'Space Mono', monospace; font-size:.85em; border:1px solid var(--border); max-height:40vh; overflow:auto; -webkit-user-select:all; user-select:all; }
.copy-btn { padding:8px 15px; background:transparent; border:1px solid var(--border); color:var(--fg); cursor:pointer; font-size:.75em; transition:.3s; text-transform:uppercase; letter-spacing:1px; }
.copy-btn:hover { background:var(--fg); color:var(--bg); }
.hidden { display:none; }
.message-display { padding:20px; border:1px solid var(--border); margin:20px 0; line-height:1.6; }
.url-item { padding:10px; border:1px solid var(--border); margin-bottom:10px; font-family:'Space Mono', monospace; font-size:.85em; word-break:break-all; display:flex; justify-content:space-between; align-items:center; }
.url-item-buttons { display:flex; gap:5px; }
.url-item button { padding:6px 12px; background:transparent; border:1px solid var(--border); color:var(--fg); cursor:pointer; font-size:.7em; transition:.3s; text-transform:uppercase; letter-spacing:1px; white-space:nowrap; }
.url-item button:hover { background:var(--fg); color:var(--bg); }
.error { font-family:'Space Mono', monospace; color:var(--fg); background:transparent; border:1px solid var(--fg); padding:10px; margin-top:10px; font-size:.8em; text-transform:uppercase; letter-spacing:1px; }
.info-icon { display:inline-block; width:16px; height:16px; border:1px solid var(--border); border-radius:50%; font-family:'Space Mono', monospace; font-size:.7em; line-height:14px; text-align:center; cursor:help; position:relative; margin-left:5px; vertical-align:middle; opacity:.5; transition:opacity .3s; }
.info-icon:hover { opacity:1; }
.tooltip { visibility:hidden; position:absolute; bottom:100%; left:50%; transform:translateX(-50%); margin-bottom:10px; background:var(--fg); color:var(--bg); padding:10px 15px; font-size:.8em; width:250px; z-index:1000; opacity:0; transition:opacity .3s, visibility .3s; font-family:'Space Mono', monospace; line-height:1.4; text-transform:none; letter-spacing:normal; }
.tooltip::after { content:''; position:absolute; top:100%; left:50%; margin-left:-5px; border-width:5px; border-style:solid; border-color:var(--fg) transparent transparent transparent; }
.info-icon:hover .tooltip { visibility:visible; opacity:1; }
.footer { position:fixed; bottom:0; left:0; right:0; padding:15px 20px; border-top:1px solid rgba(255,255,255,0.2); background:#000; color:#fff; font-family:'Space Mono', monospace; font-size:.65em; text-transform:uppercase; letter-spacing:1.5px; display:flex; justify-content:space-between; align-items:center; z-index:999; }
.footer-links { display:flex; gap:20px; }
.footer-links a { color:#fff; text-decoration:none; transition:opacity .3s; }
.footer-links a:hover { opacity:.6; }
.footer-right { text-align:right; pointer-events:none; user-select:none; color:#fff; }
.about-modal { display:none; position:fixed; top:0; left:0; right:0; bottom:0; background:var(--bg); z-index:1000; overflow-y:auto; padding:40px 20px; }
.about-modal.active { display:block; }
.about-content { max-width:600px; margin:0 auto; animation:fadeIn .4s ease; }
.about-content h2 { font-family:'Space Mono', monospace; font-size:2em; font-weight:700; margin-bottom:20px; }
.about-content h3 { font-family:'Space Mono', monospace; font-size:1.2em; font-weight:700; margin:20px 0 10px; opacity:.8; }
.about-content p { line-height:1.8; margin-bottom:15px; opacity:.7; }
.close-about { position:fixed; top:20px; right:20px; width:40px; height:40px; border:1px solid var(--border); background:transparent; color:var(--fg); cursor:pointer; font-size:1.5em; display:flex; align-items:center; justify-content:center; transition:.3s; }
.close-about:hover { background:var(--fg); color:var(--bg); }
.security-badge { display:inline-block; padding:5px 10px; border:1px solid var(--border); margin:5px; font-size:.7em; text-transform:uppercase; letter-spacing:1px; }
.password-prompt { text-align:center; padding:40px 0; }
@media (max-width:480px) { .card { padding:25px; } h1 { font-size:2.5em; } .theme-toggle { width:40px; height:40px; font-size:1.2em; } }