:root{
    --bg:#0b1120;
    --card:#111827;
    --card-hover:#182235;
    --border:#1f2937;
    --text:#f9fafb;
    --muted:#94a3b8;
    --primary:#6366f1;
    --danger:#ef4444;
}

*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

body{
    background:
    radial-gradient(circle at top left,#312e81 0%,transparent 25%),
    radial-gradient(circle at bottom right,#0ea5e9 0%,transparent 25%),
    var(--bg);

    font-family:'Inter',sans-serif;
    color:var(--text);
    min-height:100vh;
}

.auth-wrapper{
    min-height:100vh;
    display:flex;
    justify-content:center;
    align-items:center;
    padding:20px;
}

.auth-card{
    width:100%;
    max-width:420px;
    background:rgba(17,24,39,.9);
    border:1px solid var(--border);
    backdrop-filter:blur(20px);
    border-radius:24px;
    padding:40px;
}

.logo{
    text-align:center;
    font-size:2rem;
    font-weight:700;
    margin-bottom:8px;
}

.logo span{
    color:var(--primary);
}

.subtitle{
    text-align:center;
    color:var(--muted);
    font-size:.95rem;
    margin-bottom:30px;
}

.input{
    width:100%;
    background:#0f172a;
    border:1px solid #273449;
    color:white;
    padding:14px;
    border-radius:12px;
    font-size:.95rem;
    margin-bottom:14px;
}

.input:focus{
    outline:none;
    border-color:var(--primary);
    box-shadow: 0 0 0 3px rgba(99,102,241,.2);
}

.btn{
    width:100%;
    border:none;
    cursor:pointer;
    padding:14px;
    border-radius:12px;
    background:var(--primary);
    color:white;
    font-size:.95rem;
    font-weight:600;
}

.btn:hover{
    transform: translateY(-2px);
    background:#5558e6;
}

.btn:active{
    transform: scale(0.98);
}

.auth-link{
    margin-top:20px;
    text-align:center;
}

.auth-link a{
    color:var(--primary);
    text-decoration:none;
    display:inline-block;
    transition:transform 0.2s ease, color 0.2s ease;
}

.auth-link a:hover{
    transform: scale(1.05);
}

.dashboard{
    width:min(1100px,92%);
    margin:auto;
    padding:35px 0;
}

.navbar{
    display:flex;
    justify-content:space-between;
    align-items:center;
    margin-bottom:25px;
}

.brand{
    font-size:1.5rem;
    font-weight:700;
}

.brand span{
    color:var(--primary);
}

.logout{
    background:var(--danger);
    color:white;
    text-decoration:none;
    padding:10px 18px;
    border-radius:12px;
}

.hero{
    background:rgba(17,24,39,.9);
    border:1px solid var(--border);
    border-radius:20px;
    padding:24px;
    margin-bottom:25px;
}

.hero p{
    color:var(--muted);
}

.add-card{
    background:rgba(17,24,39,.9);
    border:1px solid var(--border);
    border-radius:20px;
    padding:24px;
    margin-bottom:25px;
}

.section-title{
    margin-bottom:18px;
}

.links-grid{
    display:grid;
    grid-template-columns:repeat(auto-fill,minmax(300px,1fr));
    gap:16px;
}

.link-card{
    background:rgba(17,24,39,.9);
    border:1px solid var(--border);
    border-radius:18px;
    padding:18px;
    transition: all 0.25s ease;
}

.link-card:hover{
    transform: translateY(-6px);
    border-color:#2d3b52;
    background:var(--card-hover);
}

.link-card h3{
    margin-bottom:8px;
}

.link-url{
    color:#60a5fa;
    text-decoration:none;
    word-break:break-word;
}

.actions{
    display:flex;
    gap:10px;
    margin-top:16px;
}

.open-btn{
    flex:1;
    text-align:center;
    text-decoration:none;
    padding:10px;
    border-radius:10px;
    background:var(--primary);
    color:white;
}

.delete-btn{
    flex:1;
    border:none;
    cursor:pointer;
    background:var(--danger);
    color:white;
    border-radius:10px;
    padding:10px;
}

.empty{
    background:rgba(17,24,39,.9);
    border:1px solid var(--border);
    border-radius:20px;
    padding:40px;
    text-align:center;
    color:var(--muted);
}