body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #0b1220;
    color: #ffffff;
}

/* =========================
   LOGIN / REGISTER BOX
========================= */

.container {
    width: 400px;
    margin: 100px auto;
    background: #111a2e;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 0 25px rgba(0,0,0,0.6);
    border: 1px solid #1f2a44;
}

input {
    width: 100%;
    padding: 12px;
    margin: 10px 0;
    border-radius: 8px;
    border: 1px solid #1f2a44;
    background: #0f172a;
    color: white;
    outline: none;
    transition: 0.2s;
}

input:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 8px #3b82f6;
}

button {
    width: 100%;
    padding: 12px;
    background: #3b82f6;
    border: none;
    border-radius: 8px;
    color: white;
    cursor: pointer;
    font-weight: bold;
    transition: 0.2s;
}

button:hover {
    background: #2563eb;
    transform: translateY(-1px);
}

/* =========================
   LINKS
========================= */

.link {
    color: #60a5fa;
    cursor: pointer;
    text-align: center;
    display: block;
    margin-top: 10px;
}

.link:hover {
    text-decoration: underline;
}

/* =========================
   NAVBAR
========================= */

.nav {
    background: #111a2e;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #1f2a44;
}

.nav h3 {
    margin: 0;
}

/* =========================
   DASHBOARD CARD
========================= */

.card {
    background: #111a2e;
    margin: 20px;
    padding: 15px;
    border-radius: 12px;
    border: 1px solid #1f2a44;
    box-shadow: 0 0 15px rgba(0,0,0,0.3);
}

/* =========================
   TUNNEL BOX
========================= */

.tunnel {
    background: #0f172a;
    padding: 12px;
    margin-top: 10px;
    border-radius: 8px;
    border: 1px solid #1f2a44;
    transition: 0.2s;
}

.tunnel:hover {
    transform: scale(1.01);
    border-color: #3b82f6;
}

/* =========================
   LINKS INSIDE DASHBOARD
========================= */

a {
    color: #60a5fa;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* =========================
   SMALL ANIMATION EFFECTS
========================= */

button:active {
    transform: scale(0.98);
}