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

header {
    background: #0b1220;
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    margin: 0;
    font-size: 24px;
}

nav {
    display: flex;
    align-items: center;
    gap: 22px;
}

nav a {
    color: white;
    text-decoration: none;
    font-weight: bold;
}

nav a:hover {
    color: #38bdf8;
}

.hero {
    text-align: center;
    padding: 80px 20px 40px;
}

.hero h2 {
    font-size: 42px;
    margin-bottom: 10px;
}

.hero p {
    color: #cbd5e1;
}

.content {
    max-width: 1000px;
    margin: auto;
    padding: 40px 20px;
    display: grid;
    gap: 25px;
}

.box {
    background: #1e293b;
    padding: 25px;
    border-radius: 10px;
    border: 1px solid #334155;
}

.btn {
    padding: 10px 18px;
    background: #38bdf8;
    color: black;
    border-radius: 6px;
    text-decoration: none;
    font-weight: bold;
    border: none;
    cursor: pointer;
}

.btn:hover {
    background: #0ea5e9;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

input {
    width: 100%;
    padding: 12px;
    margin-top: 6px;
    border-radius: 6px;
    border: 1px solid #334155;
    background: #0f172a;
    color: white;
}

label {
    display: block;
    margin-bottom: 15px;
}

.profile-link {
    display: flex;
    align-items: center;
    gap: 8px;
}

.profile-link img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
}