:root {
    --auth-card-max: 440px;
}

.auth-body {
    overflow: auto;
    background:
        radial-gradient(900px 500px at 15% 0%, color-mix(in srgb, var(--primary-color) 22%, transparent), transparent 55%),
        radial-gradient(700px 460px at 90% 15%, color-mix(in srgb, var(--accent-color) 18%, transparent), transparent 52%),
        linear-gradient(180deg, var(--bg-deepest), var(--bg-light));
}

.auth-header {
    padding: 18px 32px;
    background: color-mix(in srgb, var(--bg-color) 85%, transparent);
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.auth-header-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.auth-brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
}

.auth-logo {
    width: 44px;
    height: 44px;
    object-fit: contain;
    filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.25));
}

.auth-brand-text {
    font-weight: 750;
    letter-spacing: -0.3px;
}

.auth-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.auth-main {
    flex: 1;
    padding: 48px 18px;
    display: grid;
    place-items: center;
    min-height: 0;
}

.auth-card {
    width: min(var(--auth-card-max), 100%);
    background: color-mix(in srgb, var(--card-bg) 92%, transparent);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    box-shadow: var(--shadow-lg);
    padding: 22px;
    position: relative;
    overflow: hidden;
}

.auth-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(500px 240px at 20% 0%, color-mix(in srgb, var(--primary-color) 16%, transparent), transparent 55%),
        radial-gradient(420px 260px at 105% 20%, color-mix(in srgb, var(--secondary-color) 12%, transparent), transparent 60%);
    pointer-events: none;
    opacity: 0.85;
}

.auth-card > * {
    position: relative;
}

.auth-card-header {
    margin-bottom: 14px;
}

.auth-title {
    font-size: 22px;
    line-height: 1.2;
    letter-spacing: -0.4px;
}

.auth-subtitle {
    margin-top: 6px;
    color: var(--text-secondary);
    font-size: 13px;
}

.auth-alert {
    margin: 12px 0 6px 0;
    padding: 10px 12px;
    border-radius: 10px;
    background: color-mix(in srgb, var(--error-color) 15%, transparent);
    border: 1px solid color-mix(in srgb, var(--error-color) 35%, transparent);
    color: var(--text-primary);
    font-size: 13px;
}

.auth-error-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 6px;
}

.auth-error-list li {
    padding-left: 16px;
    position: relative;
}

.auth-error-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 8px;
    width: 6px;
    height: 6px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--error-color) 70%, transparent);
}

.auth-success {
    margin: 12px 0 6px 0;
    padding: 10px 12px;
    border-radius: 10px;
    background: color-mix(in srgb, var(--success-color) 16%, transparent);
    border: 1px solid color-mix(in srgb, var(--success-color) 40%, transparent);
    color: var(--text-primary);
    font-size: 13px;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 12px;
}

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

.auth-label {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 600;
    letter-spacing: 0.2px;
}

.auth-input {
    width: 100%;
    background: color-mix(in srgb, var(--input-bg) 92%, transparent);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 11px 12px;
    color: var(--text-primary);
    font-size: 14px;
    outline: none;
    transition: border-color 0.15s, box-shadow 0.15s, transform 0.05s;
}

.auth-input:focus {
    border-color: color-mix(in srgb, var(--primary-color) 55%, var(--border-color));
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary-color) 22%, transparent);
}

.auth-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 4px;
}

.auth-check {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--text-secondary);
    font-size: 13px;
    user-select: none;
}

.auth-checkbox {
    width: 16px;
    height: 16px;
    accent-color: var(--primary-color);
}

.auth-link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
}

.auth-link:hover {
    text-decoration: underline;
}

.auth-link-muted {
    color: var(--text-secondary);
    font-weight: 600;
}

.auth-submit {
    margin-top: 6px;
    width: 100%;
    border: none;
    background: linear-gradient(180deg, color-mix(in srgb, var(--primary-color) 90%, #fff), var(--primary-dark));
    color: var(--text-on-primary);
    font-weight: 800;
    letter-spacing: 0.2px;
    padding: 12px 14px;
    border-radius: 12px;
    cursor: pointer;
    box-shadow: 0 12px 28px color-mix(in srgb, var(--primary-color) 25%, transparent);
    transition: transform 0.07s ease, filter 0.2s ease, box-shadow 0.2s ease;
}

.auth-submit:hover {
    filter: brightness(1.03);
    box-shadow: 0 16px 34px color-mix(in srgb, var(--primary-color) 28%, transparent);
}

.auth-submit:active {
    transform: translateY(1px);
}

.auth-footnote {
    margin-top: 14px;
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.4;
}

.auth-session {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-left: 8px;
    padding: 2px 8px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--primary-color) 12%, transparent);
    color: var(--text-secondary);
    font-weight: 600;
}

@media (max-width: 520px) {
    .auth-header {
        padding: 16px 18px;
    }

    .auth-brand-text {
        display: none;
    }
}