* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: Inter, system-ui, sans-serif;
    background: #101827;
    color: #f8fafc;
    display: grid;
    place-items: center;
    padding: 24px;
}

.container {
    width: 100%;
    max-width: 540px;
}

.card {
    background: #1b2638;
    border: 1px solid #334155;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.25);
}

.logo {
    width: 54px;
    height: 54px;
    display: grid;
    place-items: center;
    border-radius: 16px;
    background: #2563eb;
    font-size: 25px;
    font-weight: 800;
}

.eyebrow {
    margin-top: 30px;
    color: #60a5fa;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2px;
}

h1 {
    margin: 10px 0;
    font-size: 38px;
    letter-spacing: -1.5px;
}

.subtitle {
    color: #aab7c9;
    line-height: 1.7;
    font-size: 15px;
}

.status-box {
    margin: 28px 0;
    padding: 18px;
    border: 1px solid #334155;
    border-radius: 12px;
    background: #111c2d;
}

.status-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 9px 0;
    font-size: 14px;
}

.status {
    font-size: 12px;
    font-weight: 700;
}

.pending {
    color: #fbbf24;
}

.success {
    color: #4ade80;
}

.error {
    color: #f87171;
}

button {
    width: 100%;
    border: 0;
    border-radius: 10px;
    padding: 15px;
    background: #2563eb;
    color: white;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.2s;
}

button:hover {
    background: #1d4ed8;
}

button:disabled {
    opacity: 0.6;
    cursor: wait;
}

.result {
    min-height: 45px;
    margin-top: 18px;
    color: #aab7c9;
    font-size: 13px;
    line-height: 1.6;
}

footer {
    border-top: 1px solid #334155;
    padding-top: 20px;
    margin-top: 25px;
    color: #718096;
    font-size: 12px;
    text-align: center;
}

@media (max-width: 480px) {
    .card {
        padding: 26px;
    }

    h1 {
        font-size: 32px;
    }
}