body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #0f172a;
    color: #e5e7eb;
}

a {
    color: #38bdf8;
    text-decoration: none;
}

.container {
    max-width: 900px;
    margin: auto;
    padding: 20px;
}

.card {
    background: #111827;
    padding: 20px;
    border-radius: 14px;
    margin-bottom: 20px;

    border: 1px solid rgba(255,255,255,0.08);

    box-shadow:
        0 8px 20px rgba(0,0,0,0.45),
        inset 0 1px 0 rgba(255,255,255,0.05);

    transition: all 0.25s ease;
}

.card:hover {
    transform: translateY(-2px);

    box-shadow:
        0 12px 25px rgba(0,0,0,0.55),
        0 0 15px rgba(56,189,248,0.35),
        0 0 30px rgba(56,189,248,0.15);

    border-color: rgba(56,189,248,0.6);
}

button {
    background: #2563eb;
    border: none;
    padding: 12px 16px;
    color: white;
    border-radius: 10px;
    cursor: pointer;

    box-shadow:
        0 4px 10px rgba(0,0,0,0.35);

    transition: all 0.2s ease;
}

button:hover {
    background: #1d4ed8;

    box-shadow:
        0 0 12px rgba(59,130,246,0.6),
        0 0 25px rgba(59,130,246,0.3);

    transform: translateY(-1px);
}

input,
textarea,
select {
    width: 100%;
    padding: 12px;

    margin-top: 5px;
    margin-bottom: 10px;

    border-radius: 10px;

    border: 1px solid #334155;

    background: #1e293b;
    color: white;

    box-sizing: border-box;

    transition: all 0.2s ease;
}

input:focus,
textarea:focus,
select:focus {
    outline: none;

    border-color: #38bdf8;

    box-shadow:
        0 0 10px rgba(56,189,248,0.4);
}

.topbar {
    text-align: center;
    padding: 20px;
}

.topbar img {
    max-height: 80px;
}

.header-img {
    width: 100%;
    max-height: 180px;
    object-fit: contain;
    margin-bottom: 20px;
}

.back {
    display: inline-block;
    margin-top: 20px;
    color: #94a3b8;
}