body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.login-card {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 420px;
    padding: 48px 40px;
    animation: cardAppear 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.login-card h1 {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 8px;
    background: linear-gradient(135deg, #ffffff 0%, #a0a0b0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.login-sub {
    color: var(--text-dim);
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: 32px;
}

.input-group { margin-bottom: 24px; }

.login-card label {
    display: block;
    color: #606070;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.login-card textarea {
    width: 100%;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid #2a2a35;
    border-radius: 12px;
    padding: 14px;
    color: #fff;
    font-family: 'SF Mono', Menlo, monospace;
    font-size: 11px;
    line-height: 1.5;
    min-height: 90px;
    resize: none;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.login-card textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(74, 118, 240, 0.15);
}

.login-card textarea::placeholder { color: #3a3a45; }

.back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: #505060;
    font-size: 13px;
    text-decoration: none;
    margin-top: 24px;
    transition: color 0.2s;
}
.back:hover { color: var(--accent); }
.back svg { width: 14px; height: 14px; stroke: currentColor; fill: none; stroke-width: 2; }

@media (max-width: 480px) {
    .login-card {
        padding: 32px 24px;
        margin: 16px;
        max-width: 100%;
    }
    .login-card h1 {
        font-size: 24px;
    }
    .login-sub {
        font-size: 13px;
        margin-bottom: 24px;
    }
    .login-card textarea {
        min-height: 80px;
        font-size: 12px;
    }
    .back {
        font-size: 12px;
    }
}