html, body {
    min-height: 100%;
}

body {
    margin: 0;
    font-family: ui-sans-serif, -apple-system, "Segoe UI", Roboto, Inter, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
    background-color: var(--bg);
    color: var(--ink);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 48px 16px;
    position: relative;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background: linear-gradient(180deg, var(--panel-alt), var(--bg));
    background: radial-gradient(1200px 800px at 15% 12%, var(--accent-soft), transparent 65%),
                linear-gradient(180deg, var(--panel-alt), var(--bg));
    z-index: -1;
}

.login-shell {
    width: min(480px, 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 12px;
}

.brand img {
    width: 220px;
    max-width: 90%;
    height: auto;
}

.brand small {
    color: var(--muted);
    font-weight: 500;
    letter-spacing: 0.01em;
}

.login-card {
    width: 100%;
    background: linear-gradient(180deg, var(--panel-alt), var(--panel));
    border: 1px solid var(--grid-border);
    border-radius: 18px;
    box-shadow: var(--shadow-elevated);
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.login-alert {
    border-radius: 12px;
    padding: 12px 14px;
    font-size: var(--font-size-13, 0.8125rem);
    border: 1px solid transparent;
}

.login-alert.login-error {
    background: var(--panel);
    border-color: var(--danger);
    color: var(--danger);
}

.login-alert.login-success {
    background: var(--panel);
    border-color: var(--success);
    color: var(--success);
}

@supports (background: color-mix(in srgb, red 50%, transparent)) {
    .login-alert.login-error {
        background: color-mix(in srgb, var(--danger) 18%, transparent);
        border-color: color-mix(in srgb, var(--danger) 45%, transparent);
        color: color-mix(in srgb, var(--danger) 80%, var(--ink-contrast));
    }

    .login-alert.login-success {
        background: color-mix(in srgb, var(--success) 18%, transparent);
        border-color: color-mix(in srgb, var(--success) 45%, transparent);
        color: color-mix(in srgb, var(--success) 75%, var(--ink-contrast));
    }
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.login-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.login-label {
    color: var(--muted);
    font-size: var(--font-size-12, 0.75rem);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.login-input {
    background: var(--form-control-bg);
    border: 1px solid var(--form-control-border);
    color: var(--ink);
    height: 44px;
    border-radius: 12px;
    padding: 0 14px;
    font-size: var(--font-size-14, 0.875rem);
    outline: none;
    transition: border-color .15s ease, box-shadow .15s ease;
}

.login-input:focus {
    border-color: var(--form-control-focus-border);
    box-shadow: 0 0 0 4px var(--accent-soft);
}

.password-field {
    position: relative;
}

.login-toggle-eye {
    position: absolute;
    top: 63%;
    right: 10px;
    transform: translateY(-50%);
    border: 0;
    background: transparent;
    color: var(--muted);
    cursor: pointer;
    padding: 6px;
    border-radius: 8px;
    line-height: 0;
}

.login-toggle-eye:hover,
.login-toggle-eye:focus-visible {
    color: var(--ink);
}

.login-toggle-eye:focus-visible {
    outline: 2px solid var(--form-control-focus-border);
    outline-offset: 2px;
}

.login-support {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 2px;
    font-size: var(--font-size-12, 0.75rem);
}

.login-muted {
    color: var(--muted);
}

.login-button {
    height: 44px;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    padding: 0 18px;
    font-weight: 600;
    letter-spacing: 0.03em;
    background: linear-gradient(180deg, var(--accent), var(--accent-hi));
    color: var(--ink-contrast);
    box-shadow: 0 12px 24px var(--accent-soft);
    transition: transform .05s ease, filter .2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    margin-top: 12px;
}

.login-button:hover {
    filter: brightness(1.05);
}

.login-button:active {
    transform: translateY(1px);
}

.login-footer {
    margin-top: 12px;
    text-align: center;
    color: var(--muted);
    font-size: var(--font-size-12, 0.75rem);
}

.login-footer small {
    display: block;
    margin-top: 8px;
    color: var(--muted);
}

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.login-divider {
    height: 1px;
    background: var(--grid-border);
    margin: 8px 0;
}

@media (max-width: 520px) {
    body {
        padding: 32px 12px;
    }

    .login-card {
        padding: 28px 20px;
    }

    .login-button {
        margin-top: 16px;
    }
}
.login-button-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
}