/* ==========================================================================
   Login — Auth Gate (inline) + Nav Popover
   Mobile-first: base targets 320px+, enhanced at 481px+
   ========================================================================== */

/* --------------------------------------------------------------------------
   Auth Gate — centered login card on protected pages
   -------------------------------------------------------------------------- */

.auth-gate {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 50vh;
    padding: var(--spacing-4);
}

.auth-gate-card {
    width: 100%;
    max-width: 320px;
    text-align: center;
}

.auth-gate-lock {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-3);
}

.auth-gate-title {
    font-size: var(--font-size-lg);
    font-weight: 500;
    color: var(--color-text-primary);
    margin: 0 0 var(--spacing-4);
}

.auth-gate-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
    text-align: left;
}

.auth-gate-input {
    width: 100%;
    padding: var(--spacing-3);
    font-size: var(--font-size-base);
    font-family: inherit;
    color: var(--color-text-primary);
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast);
    box-sizing: border-box;
    -webkit-appearance: none;
}

.auth-gate-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-focus-ring);
}

.auth-gate-submit {
    width: 100%;
    padding: var(--spacing-3);
    font-size: var(--font-size-base);
    font-weight: 500;
    font-family: inherit;
    color: var(--color-text-inverse);
    background: var(--color-primary);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
    -webkit-appearance: none;
}

.auth-gate-submit:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.auth-gate-submit:active {
    transform: translateY(0);
}

.auth-gate-submit:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* --------------------------------------------------------------------------
   Nav Popover — lightweight dropdown for sign-in from public pages
   Mobile: full-width below nav. Desktop: right-aligned 280px card.
   -------------------------------------------------------------------------- */

.login-popover {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: var(--z-popover);
    margin-top: var(--spacing-2);
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-4);
}

@media (min-width: 481px) {
    .login-popover {
        left: auto;
        width: 320px;
    }
}

.login-popover-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.login-popover-input {
    width: 100%;
    padding: var(--spacing-2) var(--spacing-3);
    font-size: var(--font-size-sm);
    font-family: inherit;
    color: var(--color-text-primary);
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast);
    box-sizing: border-box;
    -webkit-appearance: none;
}

.login-popover-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-focus-ring);
}

.login-popover-submit {
    width: 100%;
    padding: var(--spacing-2) var(--spacing-3);
    font-size: var(--font-size-sm);
    font-weight: 500;
    font-family: inherit;
    color: var(--color-text-inverse);
    background: var(--color-primary);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
    -webkit-appearance: none;
}

.login-popover-submit:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.login-popover-submit:active {
    transform: translateY(0);
}

.login-popover-submit:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* --------------------------------------------------------------------------
   Reduced motion
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
    .auth-gate-submit,
    .login-popover-submit {
        transition: none;
    }

    .auth-gate-submit:hover,
    .login-popover-submit:hover {
        transform: none;
    }
}

/* --------------------------------------------------------------------------
   Shared — error message for both login forms
   -------------------------------------------------------------------------- */

.login-error {
    font-size: var(--font-size-xs);
    color: var(--color-error);
    background: var(--color-error-bg);
    border: 1px solid var(--color-error);
    border-radius: var(--radius-md);
    padding: var(--spacing-2) var(--spacing-3);
    margin: 0;
}

/* --------------------------------------------------------------------------
   Admin Popover — authenticated user menu
   -------------------------------------------------------------------------- */

.admin-popover {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: var(--z-popover);
    margin-top: var(--spacing-2);
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-2) 0;
}

@media (min-width: 481px) {
    .admin-popover {
        left: auto;
        width: 320px;
    }
}

.admin-popover-nav {
    display: flex;
    flex-direction: column;
}

.admin-popover-link {
    display: block;
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-sm);
    color: var(--color-text-primary);
    text-decoration: none;
    transition: background-color var(--transition-fast);
}

.admin-popover-link:hover {
    background: var(--color-bg-secondary);
    text-decoration: none;
}

.admin-popover-divider {
    height: 1px;
    background: var(--color-border-light);
    margin: var(--spacing-2) 0;
}

.admin-popover-logout {
    color: var(--color-text-secondary);
}

/* Ensure popover container is positioned */
.navbar .container {
    position: relative;
}