* {
    box-sizing: border-box;
}

[hidden] {
    display: none !important;
}

body {
    margin: 0;
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
    font-family: system-ui, sans-serif;
    color: #e2e8f0;
    background: radial-gradient(ellipse at top, #173d35, #0f172a 65%);
}

.targeta {
    width: 100%;
    max-width: 420px;
    padding: 36px;
    border: 1px solid #334155;
    border-radius: 22px;
    background: #111c2e;
    box-shadow: 0 24px 70px #0005;
}

.marca {
    color: #34d399;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 3px;
}

h1 {
    margin: 18px 0 8px;
    font-size: 28px;
}

p {
    color: #94a3b8;
    line-height: 1.6;
}

label {
    display: block;
    margin: 20px 0 8px;
    font-size: 14px;
    font-weight: 600;
}

input {
    width: 100%;
    padding: 13px 14px;
    border: 1px solid #475569;
    border-radius: 10px;
    background: #0f172a;
    color: white;
    font: inherit;
}

input:focus-visible,
button:focus-visible {
    outline: 3px solid #34d399;
    outline-offset: 3px;
}

button {
    width: 100%;
    margin-top: 26px;
    padding: 14px;
    border: 0;
    border-radius: 10px;
    background: #34d399;
    color: #052e25;
    font: inherit;
    font-weight: 750;
    cursor: pointer;
}

button:hover {
    background: #6ee7b7;
}

button:disabled {
    opacity: .6;
    cursor: wait;
}

.error {
    padding: 12px;
    border: 1px solid #f87171;
    border-radius: 10px;
    color: #fecaca;
    background: #7f1d1d40;
}

.nota {
    font-size: 13px;
}

.logo-gran {
    display: block;
    width: 100%;
    max-width: 300px;
    height: auto;
    margin: 0 auto 8px;
}