:root {
    --bg: #0b1020;
    --panel: #141b33;
    --text: #f2f5ff;
    --muted: #9aa8d8;
    --primary: #5d8bff;
    --primary-hover: #4e79e6;
    --danger: #f87171;
    --ok: #22c55e;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background: radial-gradient(circle at top, #1b2a59, var(--bg) 50%);
    color: var(--text);
    display: grid;
    place-items: center;
    padding: 1.5rem;
}

.card {
    width: 100%;
    max-width: 420px;
    background: color-mix(in srgb, var(--panel) 92%, black);
    border: 1px solid #293766;
    border-radius: 14px;
    padding: 1.5rem;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
}

h1 {
    margin: 0 0 .5rem 0;
    font-size: 1.5rem;
}

.brand-logo {
    display: block;
    max-width: 180px;
    width: 100%;
    height: auto;
    margin: 0 auto .85rem auto;
}

p.subtitle {
    margin: 0 0 1.25rem 0;
    color: var(--muted);
    text-align: center;
}

label {
    display: block;
    margin-bottom: .4rem;
    color: #d8e1ff;
}

input {
    width: 100%;
    border: 1px solid #33467f;
    background: #0d1530;
    color: var(--text);
    border-radius: 10px;
    padding: .75rem .85rem;
    margin-bottom: 1rem;
}

button {
    width: 100%;
    border: 0;
    border-radius: 10px;
    padding: .8rem 1rem;
    background: var(--primary);
    color: white;
    font-weight: 600;
    cursor: pointer;
}

button:hover {
    background: var(--primary-hover);
}

button:disabled {
    opacity: .6;
    cursor: not-allowed;
}

.status {
    margin-top: 1rem;
    min-height: 1.25rem;
    font-size: .95rem;
}

.status.error {
    color: var(--danger);
}

.status.success {
    color: var(--ok);
}

.meta-footer {
    margin-top: 1rem;
    text-align: center;
}

#app-meta {
    color: #7f8cb8;
    letter-spacing: .02em;
    font-size: .72rem;
    opacity: .9;
}

@media (max-width: 480px) {
    body {
        padding: .9rem;
    }

    .card {
        padding: 1.1rem;
        border-radius: 12px;
    }

    .brand-logo {
        max-width: 150px;
    }

    p.subtitle {
        font-size: .92rem;
    }
}